Measuring Device - GLÖTZL Gesellschaft für Baumesstechnik mbH

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MOBILE MEASUREMENT SYSTEMS 

MOBILE MEASUREMENT 

SYSTEMS 

Line, Measurement and Storage 

Device NMA 9 > 

Inclinometer NMGD > 

Inclinometer NMGH > 

Compass Probe > 

Dipmeter Standard > 

Inclinometer Interface NDI > 

Cable Reel NMK2 > 

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Advanced Solutions 

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NMA 9 

Line, measurement and storage device 

Art. No. 074.20 

The NMA 9 is used to log line measurement programmes, such as those used in an NMG inclinometer or an HPG hydrostatic 

settlement meter. With this device you can log analogue and digital sensors from GLÖTZL without the need of a connection to 

the power grid. The main benefits of this device are its easy handling and outstanding robustness for everyday use on the building 

site and the fact that it is so simple and easy to operate. The NMA 9 has a measuring point management system that clearly 

identifies individual measurements. When measurements have been completed, the memory is read out via our GLNP PC software 

and the measured values are displayed and evaluated graphically. 

Functions 

The following measuring devices can be 

connected: 

- NMG analogue probe vertical 

- NMGH analogue probe, horizontal 

- NMG D digital probe, vertical 

- NMGH D digital probe, horizontal with temp. 

- HPG (hydrostatic settlement meter) 

Supported measurement sequences: 

- 1-0 1-0 

- 0-1 0-1 

- 0-1 1-0 

- 1-0 0-1 

- 1-0 

- 0-1 

- 0-11-0 0-11-0 SNCF* 

Supported probe lengths: 

0.5 m, 1.0 m, 2.0 m, 3.0 m, 4.0 m, 5.0 m, 10.0 m 

Depth: 1 - maximum 999.5 m 

Accessories 

Leather bag 

Transfer cable NMA-PC 

Battery charging cable 12 V with car plug 

Grid charging cable 

*(only for inclinometer) 

Technical specifications: 

Data transfer: 

Language: 

Data memory: 

AD conversion: 

Display: 

Protection type: 

Dimensions (mm) 

Weight: 

Power supply: 

Power consumption at 230V/50Hz: 

Resolution NMG / NMGD: 

Resolution HPG: 

Temperature range: 

Batteries: 

Battery life: 

Charging time: 

Extras 

Battery display 

Display of difference error 

Internal clock and calendar 

Direct measurement for all probe/HPG types 

Display of remaining memory 

9600 or 38400 baud 

German, French, English 

for 100 measurement series 

16 bits 

2x20 characters illuminated 

IP65 (spray water) 

175x115x140 (LxWxH) 

2.2 kg 

5 x 1.2 V / 4500 mAh NiMh batteries 

0.1 A 

0.0001 (sin) 

either cm or mm 

-5 to +45°C 

NiMh integrated 

min. 9 hours in continuous operation 

3 hours 

Version 1/ Stand 31.05.2010/ P 074.20 NMA 9 en.pdf

Version: 05.04.2006 / IG / SP / P075.02.01.00.00.001R03_engl.doc 

GLÖTZL Baumeßtechnik 

DIGITAL - VERTICAL - INCLINOMETER 

Digital Probe - NMGD 

• Latest technology with micro-controlling 

• Approved and robust mechanics 

• Installed controller/AD-converter with 

16-Bit resolution ± 32.000 

• Digital data transfer without disturbances 

via serial interface 1 mA 

• Reliable measured data transfer for 

1.000 m 

• Real-value measuring data by correction 

and calculation of raw values in the 

controller 

• Measured values registration with each 

PC-Laptop, notebock a.s.o. 

• Simple calibration of probe, probe history 

stored in EEProm 

• Low costs for standard model 

• Probe secured against foreign use by 

pass-code, also in case of loss 

Type: NMGD 

Art. No: 75.02.01 

P075SB03.vsd 

Deviation 

α 

Guide tube 

Probe 

length 

l. 

Measuring Principle 

The analog measuring values of sensors 

are digitally converted, calculated and 

balanced in the probe by controller. 

Incorrect transfers are immediately 

recognized and definitely identified. 

With the probe, the guide tube is passed 

through step by step from the bottom to 

the top. In each measuring step the 

probe is recording the inclination angle 

between vertical and probe position in 

one or two measuring levels (A- resp. 

A+B-axes). The output at the readout unit 

is either done as sine of the inclination 

angle or as horizontal deviation 

(mm/step). For a higher measuring 

accuracy and to avoid measuring errors, 

an additional turnover measurement 

should be carried out with probe turned 

by 180°. 

Application Ranges 

• Stability control of skid-endangered slopes, 

constructions, retaining dams and 

embankments 

• Deformation measurements at excavation 

walls, besides tunnel tubes, in bore piles 

• Borehole measurements 

• Verticality proof of diaphragm walls 

• Stationary inclinometer chains


Measuring and Evaluation Possibilities of Digital Probe 

Cable reel 

NDI 12 

Laptop with GLNP 

Software 

Digital-Inclinometer 

VMG 14.1 

Messaufbau_NDI12a.vsd 

Digital Inclinometer Probe 

• Weight 

2.4 kgs, Ø 30 mm 

• Length 

0.5 or 1.0 m 

• Measuring range ± 30°, max. ± 60° 

• Linearity 

± 0.02 % f.s. 

• Temperature range -5 up to +60 °C 

• Guide tube max. Ø 75 mm, min. 35 mm 

• Resolution 0.02 mm up to max. 30° 

• Hysteresis 

0.001 % f.s. 

• Zero point deviation ± 0.005 % f.s./°C 

75.02.01 Probe NMGD 30/2 with 2 meas. axes 

75.02.00.01 NMV 0,5 elongation to 1 m meas. 

length, dismountable 

Multimeter VMG 14.1 

• Intelligent 4-channel readout unit 

• Menu guidance for selection of all common 

sensors 

• Serial measuring input for digital probe 

• Output interface serial V24 

• Installed accumulator and charger 

• Splash-proof, robust housing 

• Only one measuring instrument is required for a 

wide range of measuring jobs 

74.12.11 Standard model VMG 14.1 

Converter and Supply Unit NDI 12 

Installed battery with charger and charge control; 

converter for probe; battery buffering for Laptop 

12 V 

75.10.13 Converter and supply unit

Measuring Cable 

The measuring cable is supplied on a cable reel for 

max. 100 resp. 200 m cable with Kevlar core and 

with a watertight, corrosion-resistant plug connector 

with strain relief for probe connection.The measuring 

cable is made of PUR/PVG, Ø 10 mm, 6-core, 

marking each 0.5 m, weight 150 g/m. 

75.15.02 Cable reel NMK 2-50 with 50 m cable 

75.15.03 Cable reel NMK 2-100 with 100 m 

cable 

Larger lengths and special models on request. 


Inclination measurements and evaluations on 

client’s request are carried out at short notice by 

our experienced staff. For measuring applications, 

we are also prepared to deliver our equipment for 

hire. 

Inclinometer Measuring Tubes 

76.01.01 Inclinometer tube of aluminium, 

length 3 m, Ø 48/53 mm 

76.01.11 Connection piece of aluminium, 

length 300 mm, Ø 53/57 mm 

76.01.21 End cap to beat in V 48 

76.01.22 End cap KV 48 

76.01.23 End cap plug stopper SV 48 

76.01.24 End piece with lock SSV 53 

76.02.11 Inclinometer tube of ABS, 

length 3 m, Ø 49/55 mm 

76.02.13 Connection piece of ABS, 

length 300 mm, Ø 56/63 mm 

76.02.21 End cap to beat in PV 48 

76.02.22 End cap KV 51 

76.02.23 End cap plug stopper SV 48 

76.02.24 End piece with lock SSV 55 

Accessories 

75.20.01.51 Transport case of aluminium for 0.5 m 

probe, readout unit and cable reel 

75.20.11.01 Transport case for probe and readout 

unit 

75.03.00.51 Imitation leather bag for 0.5 m probe 

Imitation leather bag for 1.0 m probe 

Assembling Accessories 

76.10.11 Rivets of aluminium Ø 3 mm 

76.10.25 Rivet pincers for tube assembly 

76.10.12 Watertight sealing tape for 

2 connections (Denso tape) 

Inclinometer Dummy Probe 

Before the first measuring application and before 

each further measurement, if abnormal deformations 

are expected, it is recommended to make some 

tests with a dummy probe on the easy throughpassing 

of the tube to avoid blocking and loss of the 

valuable probe as far as possible. 

75.08.01 NMB 50 with 50 m steel rope 

75.08.02 NMB 100 with 100 m steel rope 

75.08.00.01.1 NMB dummy probe without steel 

rope 

PC Evalution programm GLNP 

- GLNP software – an universal and flexible software tool for acquisition, filing and evaluation of inclination 

measuring data for projects in the field of constructural measuring technique 

- Determination of borehole inclination with 

datum level height calculation, herewith binding of measured data to the geodetic levels of the upper 

and/or lower end of the tube. Performance of an error correction at the sum line of measured values by 

comparison of the geodetic level difference between one end to the other end of the tube with the 

measured difference and constant distribution of this final error to all measured values. 

- Determination of settlement course by substraction of any measuring series 

- Output of borehole and settlement courses in tables, as screen graphics or as diagrams by the plotter or 

laser printer 

Acquisition 

- Measurements can be done as well for horizontal as for vertical borings. 

- Inclination measurements can be carried out in two different ways: 

- Via GLNP software as online measurement with several probes: Digital probes (e.g. AB-probe, H- 

probe a.s.o.), sliding deformeter, borehole modular probes (with the modules: Basis, basis-EXoperation, 

XY-precursor, compass, caliber, 4-point-caliber, 4-point-temperature, video 1 ) 

- Via VMG measuring device (VMG 11 resp. VMG 14) without PC on site and then input of data in the 

GLNP program 

- Input of manual values possible


Filing: Administrative functions 

- Quick training by habitual and intuitive operation (Windows program) 

- Easy operating by generally conventional functions, as e.g. erasion or copying, infix and export via 

intermediate file 

- Window technique, that means easy compara-tive possibilities of tables and diagrams 

- Hierarchical project display 

- A project contains the following elements: Diagram copies, measuring levels and measuring series. 

Evaluation 

- Quick, user-friendly and representative display of data by a large number of tables and diagram copies, 

independent on measuring series 

- Easy preparation of copies – being dependent on measuring series – from standard copies 

- Clearly structured representation and good comparitive possibilities of several measuring series in a 

diagram 

- The following tabular and graphi-cal evaluation types are avail-able: Meas. values, error values, mean 

values, borehole inclina-tion, deformation, differential deformation, Gauß-Krüger-coordinates 

- Free selection of a reference point and its consideration for evaluation 

- Export of tables by intermediate file, ASCII data files or direct export into Excel TM -program 

GLÖTZL Gesellschaft für Baumeßtechnik mbH · Forlenweg 11 · 76287 Rheinstetten · Germany 

+49 (0)721 51 66 - 0 · +49 (0)721 51 66 - 30 · http://www.gloetzl.com · info@gloetzl.com 

© Glötzl Gesellschaft für Baumeßtechnik mbH 

Subject to technical alternations

Version: 08.04.2003 / IG / RA / P075.03.00.00.00.002R00_engl.doc 


HORIZONTAL INCLINOMETER 

Inductive Pick-up 

Type: NMGH 

Art. No.: 75.03 

The inclinometer NMGH is used as measuring probe for the continuous measurement of inclination angles in 

a horizontal guide tube. These measurements give information about vertical movements in backfills, e.g. 

retaining dams, embankments or settlements of the underground. 

The detector is operating within a guide tube being installed in embankments. By this, settlements of 

constructions or the movement of layers can be recorded by measurement technique. Thus, the inclinometer 

is an important instrument for control purposes of the construction stability. 

Inductive Pick-up 

The sensor is manufactured of rust- and acid-resistant material. For guidance in the tube, it is equipped with 

two cushion balancers with two wheels each. The probe is provided with an inclination angle transducer. 

By inclination of a mass to the earth axis and also by a special torque adjustment system, highest accuracies 

of the inclination angle can be achieved. The output signal is proportional to the inclination angle to the 

horizontal axis. 

Models 

Type NMGH 30/0.5 Standard analog probe Meas. length 0.5 m Meas. axis A-A 

Type NMGHD 30/0.5 Analog digital probe Meas. length 0.5 m Meas. axis A-A 

Type NMGH 30/1.0 Standard analog probe Meas. length 1.0 m Meas. axis A-A 

Type NMGHD 30/1.0 Analog digital probe Meas. length 1.0 m Meas. axis A-A 

Technical Data 

Weight: 2.2 kgs Meas. length: 500/1000 mm 

Linearity: ± 0.02 % f.s. Total length: 700/1200 mm 

Hysteresis: 0.001 % f.s. Temperature range: -5 °C up to +60 °C 

Zero point drift: ± 0.005 % f.s./°C Shock resistance: 1000g, 11 ms 

Temperature course: ± 0.005 % of meas. value /°C Calibrat. meas. range: ± 30° 

Guide tube-Ø: max. 70 mm, min. 45 mm Operating range: ± 60° 

Measuring accuracy (resolution) in the horizontal position: 0.1 mm each meas. step 

In inclined tubes, the measuring accuracy depends on the inclination angle of the tube to the horizontal 

position. 

1 

Measuring accuracy for inclined tubes: 

x 0.1 mm/meas. step 

cos 

Measuring Unit 

This unit consists of an inclinometer NMGH, connection cable, readout unit and guide rods. 



© Glötzl Gesellschaft für Baumeßtechnik mbH



VERTICAL COMPASS PROBE 

Type: NMG D-K 

Art. No.: 75.07 

The vertical compass NMG D-K is used for torsion measurement in vertical guide 

tubes. 

Inductive Pick-Up 

The vertical compass probe is manufactured of rust- and acid-resistant material 

and is equipped with movable guiding reels for measurement of profile tubes. 

The main piece of this transducer is a magnetic field sensor which can precisely 

determine the alignment of an installed guide tube over its total length by the earth 

magnetic field. 

By this measurement, the axial distortion of the measuring tube can be determined. 

During evaluation, the distortion values are used for directional correction of the 

real inclination measuring values in two directions A/B. 

Furthermore, the compass is equipped with two inclination angle transducers which 

are displaced by a degree of 90° one to each other. 

They are only used for the orientation of the magnetic field sensor and thus cannot 

be considered for borehole measurement. 

Standard length of the probe is 0.5 m. By means of an elongation, the probe can 

be elongated to a measuring length of 1 m. 

Figure: Vertical compass probe and probe elongation 

Technical Data: 

Probe diameter: 

Measuring length: 

Weight: 

Total lengths: 

Measuring range: +/-30° 

Absolute accuracy +/-20° 

to mag. north: 

Relative accuracy: < +/-1° 

Hysteresis: < +/-0.5° 

32.0 mm 

0.5 m, 1 m elongation 

2.4/3.2 kgs 

700/1200 mm 

Operating range: -5 °C up to +60 °C 

Diameter of guide tube: 

max. 75, min. 35 mm 

Models: 

75.07.01 NMG D-K Compass probe 

75.02.00.01 NMV 0,5 Compass probe elongation for 1 m meas. length, 

dismountable 




Version: 03.02.2006 / IG / RA / P086.00.00.00.00.001R02_engl 


DIPMETER Standard 

Dipmeter with Temperature Display 

Dipmeters are used for simple recording of a water level 

referred to a surface reference point. The measuring 

cable is graduated in black for centimeters and in red for 

meters. As soon as the dispmeter is submerged in 

water, the red signal diode is flashing and the buzzer in 

the cable reel is signalizing the water contact. By light 

lifting of probe, the signals are going out so that the 

switch actuation point which is equal to the water level 

can precisely be determined. Due to the very low power 

requirement by the automatic start und stop function of 

the instrument, the operating time will be one year or 

more according to the appli-cation frequency. Besides 

the standard version, also a model with integrated 

temperature indication is available. The temperature 

indication is done automatically after approx. 10 

seconds of water contact. For measurements outside of 

water, e.g. for air temperature measurement, the unit 

can be started by a push-button. After 30 seconds, the 

unit is automatically switched off. 

Cable Reel: 

Steel frame with plastic reel for measuring cable and 

integrated electronics. 

Measuring Cable: 

Plastic flat cable with two cable strands and three Kevlar 

cores for high-tensile strength; graduation in centimeters. 

Plumb: 

Manufactured of brass, chromium-plated, with electrode, 

strain relief and buckling protection for measuring tape, 

Ø16 mm. 

Current Supply: 

Commercially approved 9 V block batteries 

Delivery Volume: 

Complete operative units with measuring lengths of 15 

up to 200 m; specific measuring lengths on request. 

Model with Temperature Indication: 

3 ½ digit temperature indication LCD 

Temperature indication –5 °C up to +70 °C 

Resolution 0.1 °C 

Measuring accuracy ±0.3 °C 

Application Ranges: 

Measurements of water level and temperature in: 

Observation levels – Borings – Wells 

Caverns and galleries – Bodies of water – Containers 

Dipmeters, article numbers and cable lengths: 

Dipmeter standard model 

Dipmeter with integrated 

temperature indication 

Type: WL . . . 

Art. No.: 86. . . . 

P086.01FO01.jpg 

P086FO02.tif 

Cable lengths [m] Art. No.: 15 30 50 100 150 200 

Dipmeter standard 86.01 .01 .02 .03 .05 .06 .07 

Dipmeter with temperature display 86.01 .21 ,22 .23 .25 .26 .27


System of a standard water level 

Head-point type in filter 

Surface 

4 

4a 

9 

10 

Street prot. cap 10 

Screw cap 

Concr. plate 

4 

Meas. tube of PVC 

w. telesc. bushing 

NG 4 / 5 / 6,3 2 

Meas. tube of PVC 

w. screw bushing 

NG 4 / 5 / 6,3 1 

P086SB01.vsd 

Filling: Sand, 

gravel, insulating 

material etc. 

Sealing: Clay, clay 

balls,expand. clay, 

bentonite etc. 

Filter tips in different 

types filled with finegrained 

gravel 

4 

4a 

9 

10 

5 6 

7 8 

Meas. tube with end cap of PVC 

Head tube 2", closing cap with key 2 m long 

Protection tube heavy-type, 

closing cap with key 1.5 m long 

Street cap for subsurface installation for 

pavements/roadways DIN 4055 

P086SB02.vsd 

Assembly: 

On one side, the measuring tubes have an external thread and on the other side a screw bushing or 

telescopic bushing with internal thread. All parts can be screwed together wihout any tools. To avoid 

penetration of pollution, the protection caps must be attached. 

Article numbers for order of measuring tubes and accessories: 

Meas. tubes PVC, NG [outer Ø in cm] NG 4 NG 5 NG 6,3 

Ø 40x3 mm Ø 50x3.5 mm Ø 63x7 mm 

1 Meas, tube w. screw bushing each 2.5 m 89.01.01 89.10.01 89.20.01 

1a Screw/adhes. bushing f. shortening 89.01.13 89.10.13 

2 Meas. tube w. telescopic bushing each 2.5 m 89.01.02 89.10.02 89.20.03 

3 Closing cap of PVC for base 89.01.11 89.10.11 89.20.11 

4 Screw-/end cap of PVC for head point 89.01.12 89.10.12 89.20.12 

4a Head tube 2“, closing cap with key 2m long 

5 Ceramic filter in cylindrical form Ø 50x120 mm 89.60.01.01 89.60.01.01 89.60.01.01 

6 Ceramic filter in cylindrical form Ø 50x250 mm 89.60.01.03 89.60.01.03 89.60.01.03 

7 PVC tube with plastic filter Ø 25x250 mm 89.60.10.01 89.60.10.01 89.60.10.01 

8 Injection tube with plastic filter Ø 25x250 mm 89.60.20.01 89.60.20.01 89.60.20.01 

9 Protection tubes heavy-type 6“ , length 1.5 m with closing cap 89.40.01 

10 Street cap with subsurface head point DIN 4055 60.01.04.31 

Subject to technical alterations! 






INCLINOMETER INTERFACE 

Type: NDI 11/12 

Art. No.: 75.10.12/13 

The NDI 11/12 is used for online – measurement of Glötzl digital inclinometer and Glötzl compass probe. The 

NDI 11/12 is performing two functions: On the one hand, the NDI 11/12 is delivering the energy supply of the 

inclinometer, and on the other hand the digital signal of the inclinometer is transferred to the standard RS232 

interface. 

Figure 1: NDI 12 

Connections NDI 11/12 

(1) Low batt display 

(2) Connection for cable reel 

(3) Connection for mains charger 

or car battery charging cable 

(4) Connection for data transfer (PC) 

NDI 11/12 

Cable reel 

Laptop with GLNP Software 

Digital inklinometer / 

compass probe 

Figure 2: Connections NDI 12 

Figure 3: Measuring arrangement for inclinometer measurement 

with the NDI 11/12

Version: 25.04.2005 / IG / RA /P075.10.13.00.00.001R02_engl.doc 

The unit NDI 11/12 has an integrated 12V lead accumulator with which operating times of > 50 hours can be 

achieved. 

If the capacity of the accumulator should not be sufficient, it is also possible to charge the NDI 11/12 from the 

car on-board supply (12V). 

On-board supply of car 12 V 

NDI 11/12 

Tripple connector of car 

Laptop with GLNP Software 

12V Converter 

for laptop 

Figure 4: Assembly of energy supply from on-board supply of car 

Technical Data: 

NDI 11 

- Accumulator: 12V/7.2Ah lead accu 

- Operating time: > 25 hours with 

standard NMG D 

- Charging time: < 15 hours with 

empty accu 

- Interface: RS232 

- Casing: Aluminium, IP 64, 

- Dimensions: 170 x 115 x 210 mm 

(L x W x H) 

- Weight: 4.9 kgs 

- Operating temperature: -10 °C up to +50 °C 

NDI 12 

- Accumulator: 12V/7.2Ah lead accu 

- Operating time: > 50 hours with 

standard NMG D 

- Charging time: < 40 hours with 

empty accu 

- Interface: RS232 

- Casing: Polyester, IP 54, 

splash-proof 

- Dimensions: 220 x 120 x 90 mm 

(L x W x H) 

- Weight: 4.0 kgs 

- Operating temperature: -10 °C up to +50 °C 

Delivery Volume / Accessories: 

- NDI 11 with integrated accu and charger 

- Battery charging cable for car 

- Serial cable SUB-D 9-core for connection to 

PC 

- Transfer cable for connection to PC 

Delivery Volume / Accessories: 

- NDI 12 with integrated accu 

- Mains charger 12V/600mA with charging 

control display 

- Battery charging cable for car 

- Serial cable SUB-D 9-core for connection to 

PC 

Optional Accessories: 

- Triple connector for car for simultaneous 

buffering of NDI 12 and laptop 






CABLE REEL 

Light-weight model Type: NMK 2 / 3 

Art. No.: 75.15. . . 

Light-weight cable reel type NMK 2 / 3 with slip ring transmission 6pole for vertical and horizontal inclination 

measuring probes. 

The cable reel in light-weight execution has 6 slip ring contacts. The 6-core measuring cable with Kevlar core 

and PUR-covering; minimum tractive force 1500 N; weight 110g/m, is marked each 0.5 m and equipped with 

a plug connector for measuring probes. 

Technical data: 

Art. No.: Type Winding width 

(mm) 

Core ∅ (mm) Max. ∅ (mm) Weight (kg) 

75.15.01.01 NMK 2 150 170 380 6 

75.15.02.01 NMK 3 150 170 470 8,5 

Max. cable lengths for cable diameter 10 mm 

NMK 2 = 100 m cable 

NMK 3 = 200 m cable


CABLE REEL 

Heavy-weight model Type: MK 4 / 5 / 6 

Art. No.: 75.15. . . 

Special cable reels MK 4 / 5 and 6 for measuring cables with slip ring transmission 6pole, max. 8pole for 

vertical and horizontal inclination measuring probes. 

Crank drive with 1:2 reduction and mechanical brake. The 6-core measuring cable with Kevlar core and PURcovering; 

minimum tractive force 1500 N; weight 110g/m, is marked each 0.5 m and equipped with a plug 

connector for the measuring probes. 

On request, the cable reel is also available with motor. 


Winding width: 

Winding diameter: 

MK 4 = 280 mm / MK 5 = 380 mm / MK 6 = 480 mm 

Core ∅ 170 mm, max. ∅ 450 mm 

Art. No.: Type Slip 

rings 

Winding width 

Weight 

without cable 

Dimensions 

L/D/H mm 

75.15.03.01 MK 4/6 6 280 17 kgs 540/500/500 

75.15.04.01 MK 5/6 6 380 18 kgs 640/500/500 

75.15.05.01 MK 6/6 6 480 19 kgs 740/500/500 

75.15.06.01 MK 4/8 8 280 17 kgs 540/500/500 

75.15.07.01 MK 5/8 8 380 18 kgs 640/500/500 

75.15.08.01 MK 6/8 8 480 19 kgs 740/500/500 

Cable length for cable diameter 10 mm: 

MK 4 max. 200 m 

MK 5 max. 350 m 

MK 6 max. 500 m 

Subject to technical alterations 




Version: 16.06.2008 / JSG / IG / SP / P075.25.00.00.00.001R00_engl.doc 


Guide bars 

Aluminium channel type GUS Art. No.: 75.25. 

Application range: 

This bars enables an exact positioning of probes in horizontal 

and inclined borings. 

Models: 

• Quick coupling without guide little wheel, more suitable for 

short measuring lengths 

• Quick coupling with 3 nos. of guide little wheels for reduction 

of the friction, therefore also suitable for larger measuring 

lengths 

Specifications: 

• Material: Aluminium channel 15x15x2 mm 

• Length of each rods: Optional 1.5 m or 2.0 m 

• Weight: Approx. 0.6 kg (for 2.0m) 

Article numbers: 

• Connection piece probe-bars 75.25.01 

• Bars GUS 0/1.5; without little wheel, 1.5 m 75.25.12 

• Bars GUS 0/2 ; without little wheel, 2.0 m 75.25.13 

• Bars GUS 3/1,5; 3fold little wheel, 1.5 m 75.25.14 

• Bars GUS 3/2 ; 3fold little wheel, 2.0 m 75.25.15 

Glass fibre bars Art. No.: 75.26. 


The glass fibre bars is suitable for a flexible guidance of probes 

in horizontal and inclined borings with large direction 

changes. By its small weight, the glass fibre bars is especially 

applicable in impassable areas. 

Models: 





lengths 


• Material: Glass fibre rod with protective jacket 

• Diameter: 30 mm (at coupling point) 

43 mm (at coupling with guide little wheel) 

Outer diameter of glass fibre: 11 mm 

• Length of each rods: Optional 1.5 m and 2.0 m 

or in one piece up to max. 300 m coiled up 



• Bars GUS 4/2G; 4fold little wheel, 2.0 m 75.25.16 

• Reel with glass fibre rod 75.26.01

Version: 16.06.2008 / JSG / IG / / SP / P075.25.00.00.00.001R00_engl.doc 

Aluminium full section type 

GVS 

Art. No.: 75.30. 


The torsion rigid full section bars with patented coupling is 

mainly used in those cases where guidance und positioning of 

borehole probes have to be carried out with an utmost of accuracy. 

Models: 





lengths 


• Material: Aluminium full section with cable notch 

• Diameter: 30 mm (GVS bars - standard); 


• Length of each bars: 2.0 m 

• Weight: Approx. 1.4 kg (for 2.0 m) 


• Connection piece probe -bars 75.30.01 

• Bars GVS 2/2 ; 2fold little wheel, 2.0 m 75.30.11 

• Bars GVS 0/2 ; without little wheel, 2.0 m 75.30.12 

Stainless steel full section type 

GAVS 

Art. No.: 75.31. 


The torsion rigid VA full section bars with patented coupling is 

mainly used in those cases where guidance and positioning of 

borehole probes have to be carried out with an utmost high 

accuracy and in an aggressive surrounding. 

Models: 





lengths 


• Material: Stainless steel full section with cable notch 

• Diameter: 30 mm (GAVS bars - standard); 


• Length of each bars: 2.0 m 

• Weight: Approx. 2.6 kg (for 2.0 m) 



• Bars GAVS 2/2; 2fold little wheel, 2.0 m 75.31.12 







RODS SLIDING EQUIPMENT for 

BOREHOLE PROBE-INCLINOMETER PROBE 

Type: GSE 

Art. No.: 75.30.20 

The rods sliding equipment is used for sliding and drawing of rods for guidance of probes. It is employed for 

situations in which the sliding in and drawing is only possible with big forces or even if it is not possible at all. 

Figure: Rods sliding equipment - Lengths of rods: 2 m 

- Advance control in steps up to 1 m 

Technical data (rods sliding equipment): 

Dimensions: 

Weight: 

3000 (L), 400 (W), 580 (H) [mm] 

approx. 130 kgs 

Figure: Hydraulic pump with control unit 

Technical data (hydraulic pump): 

Supply: 230 V, 50 Hz 

Output: 2.2 kW, 10.9 r/min 

Tank volume: 25 liters hydraulic oil 

Dimensions: 1000 (L), 340 (W), 830 (H) [mm] 

Weight: approx. 120 kgs 

Figure: Stationary clamping unit, 

supporting rods and 

connections for hydraulics 

Figure: Approach switch, bearing 

of hydraulic cylinder 

Figure: Movable thrust unit and 

fixing flange for borehole 

mouth 






BORE HOLE LENGTH MEASURING PROBE 

• Easily to handle and use 

• Only one operating person required 

- also for transport to measuring site 

• Quick measuring sequence 

• Economical measuring system 

• Combined length measurement possible 

with inclination measurements 

vertical and horizontal 

• No guide rods 

• Accessories of Glötzl standard inclination 

measuring probe can be used. 

• Digital data transfer 

The bore hole length measuring probe is 

a measuring device which takes account of 

the requirements of a site-adjusted 

application. 

The new development has the advantage – 

compared with the conventional probes - 

that the measuring expenditure is 

minimized as far as possible. By this, the 

measurement can be carried out without 

rods – similar to an inclination 

measurement -, but in the vertical area. 

The measuring tubes are installed in single 

lengths of 1 m and have measuring 

connections of metal or plastic material for 

orientation of the length measuring probe, 

dependent on the required measuring 

accuracy. For installation, the measuring 

tubes are connected with each other in 

such a way that they can record settlements 

and deformations in the construction by the 

case friction and thus make them 

measurable for the probe. 

The essential novelty of the measuring 

probe is based on the arrangement of guide 

rods with a balancer system, which enables 

the step-by-step measurement of the single 

guide couplings at the measuring 

connections by fine-tuned elastic forces. 

The balancer at the bottom of the probe is 

kept by the measuring mark. The upper 

balancer is drawn up till the upper 

measuring connection by overdraw of the 

elastic force at the lower balancer part 

which is connected with the displacement 

transducer for length measurement. The 

appearing measured value is accepted as 

length dimension. For placing the probe at 

next tube coupling, with a distance of 

Type: BES– E32/1 

E32/1A+B 

E32/1H 

E32/1A+B+H 

Art. No.: 077… 

approx. 1 m, the probe is slightly dropped 

and drawn over the measured measuring 

mark with slow speed. At the same time, 

the incli-nation measuring values are also 

recorded at pick-up of meas. values, 

dependent on probe model. Recording of 

inclinations measurements in connection 

with the length measurement enables the 

determination of exact deformation lines of 

an instrumented measuring distance for 

each meter of measuring length. 

Measuring probes: 

4 probe models are availabe for the 

different measuring tasks. The probe 

assemblage is constructed in such a way 

that it is possible to upgrade the basic 

equipment for length measurement with 

additional sensors for vertical inclination 

measurement, and, if required, also for 

horizontal measurement. An installed 

controller is digitalizing the measured 

values and is transferring them for data 

recording via a RS 485 interface. 

Measurement: 

Basically, this is exactly done like a vertical 

or horizontal inclination measurement with 

the same measuring equipment. Readout 

units VMG 14 and evaluation software 

GLNP are already equipped for length 

measurement. 

If the Glötzl inclination measuring 

equipment with corresponding readout unit 

and software are already existing, only the 

supply of the bore hole length measuring 

probe is required for the solution of the 

measuring tasks. 

Figure: Bore hole length measuring probe, basis 1 m


Vertical length- and inclination measurements: 

The measurement is done like a vertical inclination 

measurement. Additionally, a scanning of the 

measuring marks has to be done with the probe and 

their distance to each other be measured. In case of 

an equipment of probe with inclination sensors, 

type E32/1 A+B, the inclination angles are also 

recorded with the length measurement. 

Probes: 

Type E32/1 

Type E32/1 A+B 

Type E32/1 H 

Type E32/1 A+B+H 

Horizontal length- /inclination measurements: 

The procedure is the same as a horizontal 

inclination measurement with rods. By recording of 

measuring mark distances, it is similar to the 

measurement of horizontal settlement plates, 

however with high accuracy – also known as 

expanding level measurement. With the probe type 

E32/1 H, also the vertical settlements are recorded 

by the inclination angles. 

Model only as length measuring probe 

Length measuring probe with vertical inclination sensors A and B (X/Y) 

Length measuring probe with sensor for horizontal inclination measurement H 

Length measuring probe with vertically and horizontally measuring inclination sensors 

Measuring tubes: 

ABS 50, Ø 49/55 mm with plastic measuring marks (2“-tubes), type ABS BES-RK 50 

ALU 50, Ø 49/53 mm with metal measuring marks (2“-tubes), type ALU BES-RA 50 

PVC 60, Ø 60/70 mm with metal- or plastic measuring marks (2,75“-tubes), type PVC BES-RM 60 

Figure: Probe in measuring tube 

Figure: Meas. tubes and accessories 

Sequence meas. tube for further 1 

m 

measuring length 

Settlement bushing 

Probe head at top with plug 

connection and 2 reel guides 

Electronics with temperature 

sensor Data transfer by RS 485 

Meas. tube for 1 m meas. length 

Sensor for vertical incl. 

measurement Axes A,B (X/Y) 

Sensor for horizontal 

measurement H 

max. 30 mm 

max. 30 mm 

Settlement bushing 

Meas. tube bottom 

End cap 

Displ. transducer 

for ± 25 mm 

meas. basis 

975 to 1025 mm 

Probe head at bottom with 

2 reel guides 

Motion distance for length 

measurement 

position at 1000 mm 

Technical data general: 

Probe length, basic length 1000 mm 

Measuring length 975 up to 1025 mm 

Probe diameter 

32/40 mm 

Data transfer digital RS 485 

Probe temperature ± 0.1 °C 

Temperature range -5 up to +60 °C 

Material 

Stainless steel 

Length measurement E: 

Probe accuracy ± 0.02 mm 

Measuring range 

50 mm 

Meas. value resolut. max. 0.001mm 

Standard 

0.01 mm 

Operation accuracy: 

Vertical*) 

Metal meas. marks ± 0.05 mm 

Plastic meas. marks ± 0.1 mm 

Horizontal*) 

Metal meas. marks ± 0.1 mm 

Plastic meas. marks ± 0.1 mm 

Inclination measurement A+B 

vertical with 2 measuring axes: 


Maximum 90°, normal ± 30° 

Measured value resolution 

Maximum up to 5,7° sine 0.00001 

Standard sine 0.0001 

Accuracy 

± 0.1 mm/m 

Inclination measurement H 

horizontal with 1 measuring axis: 


Maximum 90°, normal ± 30° 

Measured value resolution 

Maximum up to 5,7° sine 0.00001 

Standard sine 0.0001 

Accuracy 

± 0.1 mm/m 

*) depending on the conditions 

caused by installation and 

measurements 

Configuration with max. resolution only as option available 




Subject to technical alterations

-40 / +10 mm 

-25 / +25 mm 

-10 / +40 mm 

- = Asiento 

+ = Elevación 

del rango 

disponible 

Gesellschaft für Baumeßtechnik mbH 

76287 Rhe instetten • Forlenweg 11 • Germa ny 

-40 / +10 mm 

-25 / +25 mm 

-10 / +40 mm 

- = Asiento 


del rango 

disponible 



-40 / +10 mm 

-25 / +25 mm 

-10 / +40 mm 

- = Asiento 


del rango 

disponible 





MEASURING TUBES for BOREHOLE 

LENGTH MEASURING PROBE 

Type ALU BES-RA 50 Art. No.: 77.09 


• Aluminium measuring tube for borehole length measuring 

probe in lengths of 1 m each 

• No pressurized watertight model of aluminium 

• Nominal diameter 50 mm 

• Stable execution, wall thickness 2 mm 

Meas. tube: Alu Ø 49/53 mm with 4 grooves, length 1 m 

Couplings: Alu Ø 54/58 mm with 4 grooves, telescopic 

model for total 50 mm meas. length, no 

pressurized watertight model 

Spec. weight: Tube incl. interior space 0.7 kg/m 

Head point 

Meas. tube cover at the 

top with end cap 

type BES-KA 50 

Connecting box 


• Material: Aluminium anodized 

• Length each [m]: 1,00 

Type 

A 

[mm] 

B 

[mm] 

C 

[mm] 

D 

[mm] 

2“ 49 53 54 58 

Glötzl 

Glötzl 

50 mm 

(+10 mm Elevation 

- 40 mm Settlement) 

Measuring tube 

type BES-RA 50 


50 mm 

(+/- 25 mm) 


type BES-RA 50 


50 mm 

(+10 mm Elevation 

- 40 mm Settlement) 


• Meas. tube, type ALU BES-RA 50, basic length 1 m 

incl assembly accessories 77.09.01 

• Head point, type BES-KA 50 77.09.01.11 

• Base, type BES-FA 50 77.09.01.10 

Assembly types: 

Tubes/couplings prefitted by factory. Before starting 

the assembly, it is determined, in which position the 

tubes have to be riveted together. 

Three prepared positions are available, provided 

with markings: 

Standard: +/-25 mm elevation and settlement 

Settlement: +10 mm elevation and -40 mm settlement 

Elevation: +40 mm elevation and -10 mm settlement 

Hereto also see figure on the right. 

Glötzl 

Base 

Meas. tube cover at the 

bottom with terminal plug 

type BES-FA 50 

The left figure shows the assembly positions.


Type PVC BES-RM 60 Art. No.: 77.12 


• PVC measuring tube for borehole length measuring 

probe in lengths of 1 m each 

• Pressurized watertight model of PVC 

• Nominal diameter 60 mm 

• By plane surface, an execution in seals is simply 

possible. 

• Stable execution, wall thickness 5 mm 

Head Point 

Measuring tube cover at 

top with end cap 

type BES-KM 60 

Meas. tubes: PVC Ø 60/70 mm with 4 grooves 

Couplings: PVC Ø 70/90 mm with 4 grooves, telescopic 

execution for total 50 mm meas. 

length, , O-ring seal 

Weight: Tube incl. coupling 2.2 kgs 


• Material: PVC; length each tube: 1.05 m incl. coupling 

• Outer diameter of coupling: 90 mm 

• Length of coupling: 200 mm, material: PVC grey 

• Length of each tube: 950 mm 

Pressurized-watertight 

Connection box 

Type 

A 

[mm] 

B 

[mm] 

C 

[mm] 

2.75“ 60 70 65 

C 

A 

B 


type BES-RM 60 




• Meas. tube, type PVC BES-RM 60, basic length 1 m 

incl. assembly accessories 77.12.01 

• Head point, type BES-KM 60 77.12.01.11 

• Base, type BES-FM 60 w. telescopic coupling 77.12.01.10 


Tubes/couplings are prefitted in factory. Before starting the assembly, 

it must be determined, in which position the tubes 

should be riveted to each other. 

Three prepared positions are available, provided with markings 

(prefitted in the factory acc. to indications of client): 


type BES-RM 60 

Standard: +/-25 mm elevation and settlement 



. 



Base 

Meas. tube cover at bottom 

with terminal plug 

type BES-FM 60


Type PVC BES-RM 60 Art. No.: 77.12 

Arrangement and assembly of tube connection 

Marking for 

assembly at tube 

a) 

Measuring connection 

Marking at coupling 

d) 

Glued-in pins for 

groove guidance 

2 rivets for positioning 

b) 

Marking of assembly 

direction 

b) 

a) For assembly, the marking points must stand 

opposite to each other. 

b) Preassembly of the required measuring position 

by factory, with 2 grooves 3x14 mm, seal by silicone 

and adhesive tape 

c) Before installation of the measuring tube, the 

coupling side (with 0-ring) and the tube end must 

be sprayed with teflon spray for a better sliding 

into the 0-ring. 

d) Quick and easy fixing of the follow-up tube with 

coupling by a protective rod. 

Position +10 mm, -40 mm 

Position +/- 25 mm 

Position +40 mm, -10 mm 

Following-up 

measuring 

tube 

Rivets 3 x 14 mm 

After self-assembly, 

please check tubes 

for operability 

Measuring 

tube coupling 

Assembly 

plate 

Borehole 

piping

-40 / +10 mm 

-25 / +25 mm 

-10 / +40 mm 

- = Settlement 

+ = Elevation 

of the available 

measuring range 

Gesell schaft für Bau meßtechnik mbH 

76287 Rheinstetten • Forlenweg 11 • Germany 

-40 / +10 mm 

-25 / +25 mm 

-10 / +40 mm 


+ = Elevation 



Gesell schaft für Bau meßtechnik mb H 

76287 Rheinstetten • Forlenweg 11 • Germany 


Type ABS BES-RK 50 Art. No.: 77.11 

Application ranges: 

• For long-term measuring tasks 

• Standard instrumentation for up to approx. 50 m boring 

• On account of its lower self-stability, more suitable for 

recording of smaller local deformations. 

• Restriction: Smaller self-rigidity 

1,0 m 0,5 m 

Glötzl 

End cap KV51 

End tube with 

coupling 

BES-KK 50 

-40 / +10 mm 

-25 / +25 mm 

-10 / +40 mm 


+ = Elevation 



Glötzl 

Gesellschaft für Baumeßtech ni k mbH 

76287 Rh einstetten • Forlenweg 11 • Ge rmany 

Assembly position for 

adjustment ±25 mm 


• Material: ABS 

• Length each tube [m]: 1,00 

• Outer diameter of coupling [mm]: 67 

Type 

A 

[mm] 

B 

[mm] 

C 

[mm] 

D 

[mm] 

2“ 47 55 54 60 


• Measuring tube, type ABS BES-RK 50, basic length 1 m 

incl. assembly accessories 77.11.01 

• Head point, type BES-KK 50 77.11.01.11 

• Base, type BES-FK 50 77.11.01.10 


Tubes/couplings are prefitted in factory. Before starting the assembly, 

it must be determined, in which position the tubes should 

be riveted to each other. 

Three prepared positions are available, provided with markings: 

C 

A 

90° 

B 

D 

Standard: 

+/-25 mm elevation and settlement 


with coupling 

length 1 m with 

plastic measuring 

mark for probe 

position BES-RK 50 



0,5 m 

Glötzl 

End tube at base 

BES-FK 50 

End cap PV48 







BOREHOLE MODULAR PROBE 

Type: BMS . . . 

Art. No.: 78. . . 

The borehole modular probe BMS... has been constructed for 

high-precision borehole surveying in two axes in horizontal and 

vertical tubes or borings. 

The modular construction offers the advantage that the basic 

probe can be adapted to the measuring tubes or borings by 

means of exchangeable guiding modules and can fulfil the 

demands of customary measurements by complementary 

probe modules. 

Guiding Modules 

♦ Wheel-balancers guidance for horizontal and vertical 

measuring tubes with guiding grooves 

♦ 3-point-balancers-roller guidance for precise measurements 

in borings or tubes with guide rods 

♦ 3-point-skid guidance with sliding reels for simple borehole 

surveying with guide rods 

♦ Solutions according to client’s specification 

Basic Probe and Extension Modules 

♦ Basic probe BMS-B35/1 with the measuring axes 

horizontal-H, vertical- A, vertical-B and temperature sensor 

♦ Precursor module –V35/1 with the measuring axes X and 

Y in reference to the basic probe 

♦ Video module –V40/1 with colour picture super VHS and 

wide-angle optics 

♦ Distortion angle module –D35/1 for torsion measurement 

of inclinometer guide tubes 

♦ Calibre module –K40/1 for recording of boring and measuring 

tube diameters 

♦ Compass probe –R40/1 for site measurement of horizontal 

borings without piping 

♦ Temperature module –T35/1 for determination of surface 

temperature in borings 

♦ Solutions according to client’s specification 

With the basic probe the user has a standard measuring unit 

for horizontal and vertical inclination measurements. 

Figure: Picture on the left - basic probe with precursor module with three-point reel guidance 

Picture on the right - guiding parts for grooved tube measurement


Basic Probe BMS-B35/1 

As basic version, the probe consists 

of a two-fold mounted probe part with 

exchangeable guiding modules and 

max. three inclinometer sensors for 

determination of two vertical and one 

horizontal inclination angle. For 

determination of the surrounding 

temperature a forth sensor is 

installed in the probe as temperature 

cell. The measured values are 

managed by a master controller with 

calibration constants and transferred 

by a RS485-interface. 

Basis probe, type BMS-35/1, as horizontal and vertical inclinometer 

For horizontal measurements (vertical deviation) the revolution of the probe 

by its longitudinal axis is without influence on the measured values 

For special Measurements, the distortion is determinable by the sensors 

for vertical measurements X+Y 

- Horizontal ±30° (90°), 1 measuring axis (vertical devitation) 

- Vertical ±30° (90°), 2 measuring axes 

V078SB01.vsd 

cable connection 

cable connection 

Borehole probe - basic module as horizontal and vertical inclinometer 

probe for measurement in grooved tube 

Reel-balancers-guidance for horizontal and vertical measuring tubes 

for grooved tubes of Ø 40 - 80 mm 

1000 mm 

Basic part w. connections for several guiding modules, basic length 1 m 

3-point-balancer-reel-guidance for suveying of boring and measuring 

tubes, guide modules for Ø 55 - 120 mm, exchangeable 

Conn. A1 

Conn. A2 

3-point-skid-guidance with sliding reels for borehole measurement with 

guiding rods, guide modules for Ø 55 - 120 mm, exchangeable 

Adapterconnector 

Electric cable 

connection 

Vertical A Horizontal H Vertical B 

- Inclinometer - 

Controller for analog/ 

digital conversion 

Basic Probe BMS-B53/1 

and 

Precursor Module V35/1 

Basis probe 

Precursor 

Vertical probe 

For acquisition of the X-coordinates in the 

horizontal surveying, the precursor 

module is used by coupling to the basic 

probe. The module has an optical sensor 

for the measuring axes X and Y. The 

measured value is produced by the angle 

change of the precursor module to the 

basic module. These modules are 

mechanically connect-ed to each other by 

a ball and socket joint. 

Horizontal measuring probe 

Basis probe equipped with 3 inclination sensors for absolutely angel 

pic-up 

- Horizontal ±30° (90°), 1 measuring axis 

- Vertical X + Y Achse ±30° (90°), 2 measuring axes 

- Optical sensor for precursor X + Y ±1,5°, 2 measuring 

axis 

The computation of the horizontal deviation is done by specified 

dertermination of the starting direction. the vertical measurement is 

absolutelydone by inclination sensors. 

The measured values are managed by a slave-controller with calibration constants and transmitted via the 

existing RS485-interface. 

1,5° 1,5°


Video Module –V40/1 

The video probe is used as 

supplementation to the basic unit 

for borehole examination in connection with 

an inclination measurement. 

The video probe with accessories can also 

be used as single instrument with PC or 

television set. The record is done in colour 

with a CCD-color-camera in super VHS 

quality. Objective f = 3.5 mm 

Figure: 

Video recorder, cable reel, video probe and 

guide rods 

Video module -V40/1 

Model with skids 

500 - 1000 

Alternative model with reels for grooved tube 

500 - 1000 

Video 

Application fields 

Model with skids for an application in unpiped boring, with 

exchangeable sliding skids according to borehole diameter 

Compass Probe –R40/1 

for acquisition of the spatial location of an unpiped 

boring. Measurement is done by the ball-spherical 

capture of the earth magnetic field in 360° position. 

The analog measured values are digitally 

converted in the probe and transmitted with a 

networked communication computer in the form of 

a micro-controller 87C751 and a RS485-interface. 

The accuracy – compensated with the spatial 

position - is ±0.5° angle. 

The compass probe can be used as module in 

connection with the basic probe. For an 

independent measurement, the connection 

adapters and the guide shoes of the basic unit are 

required. 

Model with reels for inspection of grooved tubes 

V078SB05_engl.vsd 

Basis probe 

Compass 

Inclination 

±30° 

1000 200 

Alternative Construction 

Basis probe 

Compass 

Com 

. 

360° 

1500 

V0778SB07_engl.vsd


Acquisition of Measured Values Figure: Storage unit, type VMG 14.1 

The record of the measured values is done by a notebook with power 

supply unit or by a standard PC. The comfortable software already 

enables an evaluation resp. an analysis of the complex data during 

measurement on site. During the stepwise passage of the measuring 

distance the measuring sizes of the probe are directly processed in 

graphic form by the program and then displayed. For a sole data 

recording, a menu-guided storage unit is available. 

Evaluation examples with PC 

Shear rods with cable guidance, quick coupling and sliding reels in 2 m lengths 

Cable reels with slip-ring contacts 

Manual reel up to 100 m, type NMK2 

Manual-motor reel with cross shaft and cable counter up to 

up to 200 m, type NMK3 200 m, type MK 4/6, and up to 500 m, type MK 6/6 






Borehole Modular Probe – Calibre 

Modulus 

Connection for guide part 

Type: BMS-FZ.. or BMS-FT.. 

Type: BMS-VK45/4 

Art. No.: 78.01.04.02 

- Large standard meas. ranges from 80 mm up to 150 mm 

- Simultaneous measurement at 4 points at borehole wall 

- High accuracy 

- Simultaneous measurement of inclination- and calibre 

values, video inspection resp. compass measurement 

Application: 

The borehole calibre probe is used for recording of the borehole 

calibre in horizontal and vertical borings. 

The housing of the calibre probe is made of stainless steel and 

aluminium. By application of up-to-date materials, a total weight of 

less than 3 kgs can be achieved. 

By the three-point roller guidance with forced centering, the 

complete measuring unit is always guided in the centre of the 

boring. 

Function: 

The calibre probe has four measuring arms, displaced by 90° to 

each other. 

The measuring arms are separately movable and continuously 

scanning the borehole wall partition during a measurement. The 

movements of the measuring arms are recorded by 4 separate 

lineary displacement transducers and directly digitalized in the 

calibre probe. While doing this, the calibration coefficients - 

necessary for computation - are stored in a permanent memory in 

the calibre probe. By the internal front-end computer (microcontroller 

AT 90S8515), the data are transferred by the RS485- 

measuring bus, if required. 

The measuring arms of the calibre probe can be limited multistage 

at a maximum borehole diameter. By this, a hacking into cavities in 

the borehole wall can be avoided. 

Measuring procedure: 

The calibre probe is mounted as precursor before the Glötzl basic 

probe. 

Additionally, the measuring equipment can be provided with a 

compass module or a video module. By this, it is possible to carry 

out simultaneously in one measuring procedure a position 

measurement of the boring, the determination of the borehole 

calibre and also a video inspection. 

Connection for guide part 

Type: BMS-FZ..


Possible configurations of meas. modules with calibre probe: 

Meas.cable 

Meas.cable 

guide part 

Basic probe 

Baisc probe 

Führungsteil 

Calibre probe 

Calibre probe 

Guide part 

Compass Kompass 

The following figures are 

showing possible combinations 

of the single probe 

modules. 

uide part 

Führungsteil 

Guide part 

Meas.cable 

Basic probe 

Calibre probe 

Video Vido camera 

Guide part 

Führungsteil 

Guide part 

Meas.cable 

Basic probe 

Calibre probe 

Video camera 

Guide part 

Guide part 

Guide part 

Lateral view 

adapter 

Basic probe Calibre probe Video probe Lat. view 

adapter 

Compass 

Transport case consisting of: 

- Calibre probe 

- Calibration adapter 

- Video probe 

- Lateral view adapter 

Calibration adapter for calibre 

probe 

Art. No.: 78.01.04.03 

Technical data calibre probe: 

The accuracy of measuring arms can be 

tested with the calibration adapter and 

eventually be corrected. 

Outer diameter : Ø 45 mm 

Further diameters are available on 

Overall length : 880 mm 

request. 

Length to centre of the 

guide elements : 1000 mm 

Weight : 2.8 kgs 

Meas. range (calibre) : Standard: Ø 80 mm up to Ø 150 mm 

Further measuring ranges on request 

Linearity : < +/-0.4 mm, 

< +/-0.2 mm (typical) 






BOREHOLE MODULAR PROBE-LATERAL 

VIEW ADAPTER 

Type: BMS-VS56/1 

Art. No.: 78.01.05.02 

• Simple assembly on Glötzl BMS-video module 

• Stepless adjustment of view direction, controllable by software (left, right, stop) 

• Stepless adjustment of size of picture cut-off by changing of distance between objective 

and mirror 

• Display of view direction in the picture 

• Manufactured of impact-resistant plastic 

The picture shown at the left 

is presenting the Glötzl 

lateral view adapter. 

1 2 

3 

1 = Lateral view adapter 

head, with motor 

2 = Reversing mirror 

3 = Guide shoe for attachment 

at video probe 

Application: 

The lateral view adapter is mounted as accessories at the Glötzl vido modulus. The view direction of the 

objective is laterally oriented by 90° by a mirror. By this it is possible to assess e.g. cavities in salt in a 

boring without distortion. 

The mirror can be controlled multistage by the control- and evaluation software GLNP (left, right, stop). 

Therefore, a complete view of the borehole dimension (360°) is possible. 

Photo in salt rock without lateral view adapter 

Photo in salt rock with lateral view adapter 

The proportion of dimensions can now correctly 

be interpreted.


Possible operating variants: 

The following figures are showing possible combinations of the Glötzl BMS-modules, for which the lateral view 

adapter can be used.: 

Variant 1 

Variant 2 

Variant 3 

Variant 1: Guide adapter, video probe, lateral view adapter. 

Variant 2: Basic probe, video probe, lateral view adapter. 

Variant 3: Basic probe, calibre probe, video probe, lateral view adapter. 

Assembly of lateral view adapter 

(3) 

1. Push lateral view adapter on video modulus. 

(1) 

2. Align the lateral view adapter: 

The two adjusting screws (1) are showing to the top, 

the video camera is delivering pictures with correct position. 

3. Fasten lateral view adapter with 4 countersunk bolts M3x10 

(2). 

The two adjusting screws are used for fixing and also for current 

supply to the motor. 

Fasten screws only with moderate force! 

(2) 

4. Adjust picture size of lateral view with screws (1): 

- Open both screws (1) by two rotations. 

- Adjust required picture size by displacement of head (3). 

- Retorque both screws (1) . 

Technical data lateral view adapter: 

Video probe 

Length: 

175 mm 

Diameter: 

57 mm 

Rotation range: 360° (stepless) 

Speed: 50 s for 360° 

Weight: 

350 g 




Version: 08.04.2003 / IG / FGL / RA / P078.01.05.00.00.001R00_engl.doc 


BOREHOLE MODULAR PROBE – 

VIDEO MODULE 

Borehole Surveying and Video Traversability System Glötzl 

• Can be used as video system or as supplementary module for the 

approved Glötzl borehole modular probes, type BMS 

• By up-to-date technology large transmission length up to 600 m 

• Network-independent system 

• Adjustable illumination 

• Digitalization of picture information and transmission with high-speed 

• Interface with 400 Mbps 

• Pressure watertight model 

• Available in Ex-execution for special applications 

Type: BMS V45/1 

Art. No. 78.01.05… 

Application: 

The video probe BMS-V is used for 

inspection in borings in all directions. 

By its small outer diameter of 45 mm, 

the video probe can also be employed 

in small borings. 

In connection with the basic probe, 

simultaneously borehole inclination 

measurements can be carried out. 

Figure 1 shows the video module BMS-V45/1 

The housing is manufactured of non-rusting and acid-resistant 

stainless steel and is furthermore pressure watertight. 

Special luminous diodes are used for illumination. By this, a long 

durability of the illumination is granted. The luminous intensity 

can be adjusted according to the individual conditions in the 

borehole. 

Figure 2 shows the objective around which an illumination ring is 

arranged. The objective is protected by an optically neutral, 

shock-resistant disk. 

Figure 1 

Figure 2 

Technical Data Video Module, 

Type BMS-V45/1 

Outer diameter: Ø 45 mm 

Overall length: 

300 mm 

Weight: 

1.3 kg 

Illumination: 

15 LEDs, adjust. 

White tuning: 

automatic 

Focussing: 

automatic 

Operating temperature: 0 - 40 °C 

Resolution: 

752 x 582 Pixel 

Focal length: 

3.5 mm 

Quality: SVHS 

The following readout units are available: 

For video acquisition 

Television set with video-VHS as simple recording instrument, 

can be equipped with text input and microphone 

For video acquisition and all BMS probe modules 

Evaluation and control PC mains operated and 15“-monitor 

installed in special housing. Graph of vido pictures and their 

record. Measurement of all borehole modular probes with the 

software GLNP and evaluation. 

For network-independent application of site, video 

acquisition and all BMS probe modules 

Notebook in special housing with integrated power supply. 

Graph of video pictures and their record. Measurement of all 

borehole modular probes with the software GLNP-Online and 

evaluation

Version: 08.04.2003 / IG / FGL / RA / P078.01.05.00.00.001R00_engl.doc 

Measuring procedure: 

The video probe BMS-V can be operated either in connection with a Glötzl basic probe or as independent 

video probe with a guide adapter. 

Guide adapter 

Figure 4 

Connection for 

video probe 

Guide part for 

70 mm boring 

Figure 3 shows an autarkical video measuring system with video probe, 

guide adapter, cable reel and acquisition unit with notebook. 

The guide parts are exchangeable and thus can be adapted to the 

borehole diameter. 

Figure 5, guide adapter : 

Type VS 90 for tubes with 90 mm and 

type VS 110 for tubes with 110 mm diameter 

Further models can be delivered on request. 

Guide part for 

70 mm boring 

Connection for 

cable reel and 

guide rods 

Figure 6: 

Complete borehole modular 

probe equipment with basic 

probe and guide adapter for 

independent measurement with 

different guide parts, video 

module, compass for distortion 

measurement and cable reel 

with acquisition unit. 

With the acquisition unit all 

inclination measurements and 

also the video inspection can 

be carried out. While doing this, 

the acquisition unit can be 

operated with accus as well as 

with mains supply. 






HYDROSTATIC PROFILE GAUGE 

Type: HPG 

Art. No: 84.20 

The hydrostatic profile gauge has been designed for measurement of the absolute height in horizontal resp. 

slightly horizontally inclined tubes.When passing the tubes with the measuring probe, the height difference 

between probe and a reference benchmark at tube beginning is determined at selected points. 

By comparison of two measuring series at different times, you get the settlement of the tube. 

Principle: 

The system comprises a cable reel with internally mounted differential transducer and a measuring cable with 

probe. 

The measuring cable contains a two-fold tube of polyamide sheathed in polythene and is marked each meter 

and labelled each 5 meters. One of these tubes is filled with water, the other one with compressed air of 

1 – 1.5 bars. An interface of rubber diaphragm is installed in the probe at cable end connecting both systems. 

The change of the hydrostatic water pressure - as height difference between probe and reference benchmark 

– is registrated by the differential pressure transducer and is displayed directly in meters. 


• Construction control of embankments 

• Settlement determination under dams and 

buildings 

• Control of vertical deformations in landfills 

• Simple height control of tube and tunnel 

advance working machines 

Working Range: 

Measuring lengths of the cable up to 300 m 

Special models according to functional 

specification on request 

Height working range of probe referred to 

standard height of the cable reel 

• Settlement determination under buildings 

• Settlement control in drainage tubes 

• Height measurements at buildings 

• Simple levelling works 

Height difference Resolution 

± 5 m (standard) 1 mm 

± 10 m 1 cm 

± 20 m 1 cm


84.20.10. . . 

Heavy-Weight Cable Reel 

For long distances up to 300 m, we are offering 

heavy-weight cable reels with solid steel tube 

frames: 

Art. No.: Type Distance 

(m) 

Dimensions 

L/D/H (mm) 

Weight 

(kga) 

84.20.10.11 HPG4/150 150 540/500/500 32 

84.20.10.12 HPG4/200 200 540/500/500 37 

84.20.10.13 HPG4/250 250 540/500/500 43 

84.20.10.14 HPG4/300 300 540/500/500 49 

Light-weight cable reel for max. 100 m measuring 

cable with probe and readout unit 

84.20.10. . . 

Light-Weight Cable Reel 

For distances up to max. 100 m measuring length. 

The measuring cable consists of a two-fold 

instrument leads sheathed in polythene, cable 

marking each meter, labelled each 5 meters. 

Art. No.: Type Meas. 

cable 

length (m) 

Ø (mm) 

of reel 

Weight 

(kgs) 

84.20.10.01 HPG 2/30 30 390 9,0 

84.20.10.02 HPG 2/50 50 390 11,0 

84.20.10.03 HPG 2/75 75 500 13,6 

84.20.10.04 HPG2/100 100 500 16,0 

74.12.11 

Digital Readout Unit, Type VMG 14.1 

The multimeter is used for measurement of nearly 

all single sensors available on the market. 

Furthermore, it can also be applied for line-type 

measuring procedures (e.g. inclinometer). 

The instrument contains a charger and reloadable, 

maintenance-free NiMH accumulators and thus is 

operatable nonsystem-connected so it can be 

recharged either by 230-V mains or by car battery 

(12 V). The unit is programmable by keyboard or by 

V24 interface. All measured data are stored and 

can be downloaded by serial interface. 

For the line-type measuring procedure variable 

processing programs are available which can easily 

be operated and with which measuring step length, 

total measuring length and type of measurement 

can be defined. Additionally, the unit can be used 

as temporary collecting system for the measured 

values (datalogger). A time program is automatically 

recalling the data by the connected multiplexer and 

is storing them in an allocated file. 

Power supply: 

Battery operation: 

Dimensions: 

Weight: 

12 . . . 24 V DC, 230 V AC 

>8h in standard operation 

with acitve background 

lighting 

190/120/210 [mm] 

3.3 kgs 

Reference meas. 

point 

H 

Guide tube 

Readout 

unit 

Cable reel with 

differential pressure 

transducer 

Traction 

rope 

Settlem. probe 

Two-fold tubing 

P084.20SB01.vsd 

Installation example with double-sided access of measuring tube, measurement execution with traction rope


Measuring Tubes and Accessories 

89.20.01 Meas. tube NW 6,3 Ø 63 x 7 mm of PVC, 

single length 2.5 m 

89.20.03 Connecting piece, Ø 75 x 5.6 mm, 

length 400 mm as telescopic bushing 

with O-ring on both sides 

89.20.11 End cap KV 63 for head point 

89.20.12 End cap PV 49 for base 

89.20.13 End cap PR 49 for base with return pulley 

for traction rope 

89.20.19 Rivets Ø 3 x 18 mm 

Traction Rope and Rods 

Positioning of the probe in the measuring tube is either done by a traction rope (in case of double-sided 

access) or by guide rods. Dependent on application type and length of tube, the rods are manufactured of 

aluminium resp. can also be delivered as flexible glass fibre rods with friction-reducing wheels at the coupling 

part of the rods. The quick coupling enables an easy and quick connection of the single rods and is 

additionally acting as fastening element for the measuring cable. 

For fixing of the probe at the guide rods, a connection piece for probe – rods can be delivered in which the 

probe is inserted. 

75.25.31 Return pulley for steel rope 

75.08.00.02 Steel rope Ø 3 mm with PVC sheath Ø 4 mm 

75.25.32 Steel rope Ø 3 mm, rustproof 

75.25.33 Cable reel for max. 150 m steel rope 

84.20.30.10 Connector for probe - rods 

75.25.12 Jacked rods of aluminium U-section, length 1.5 m, with quick coupling, simple model for short 

and straight tube length 


and straight tube lengths 

75.25.14 Jacked rods of aluminium U-section, length 1.5 m, with quick coupling and 3-fold roller for 

reduction of friction when passing the tube 


and straight tube lengths 

75.25.16 Jacked rods of glass fibre rod, φ 11 mm, length 2 m, with quick coupling and 4-fold roller for 

reduction of friction when passing the tube, for big lengths and high direction changes of the 

measuring tube 

Transition element for guide rods 

of alu U-section 

Spherical shell of alu for 

insert of probe 

Guide head with 

4 wheels 

P084.20SB02.vsd 

Connection piece probe - rods


181.30 

PC Evaluation Program GLNP 3.1 (Windows) 

For data recording and evaluation of data of the horizontal inclinometer and of the hydrostatic profile gauge 

Characteristics and Functions of Program: 

- Menu control, simple use without computer knowledges 

- Manual data input and correction, max. 300 measuring steps for each measuring series 

- Automatic downloading of measured values from readout unit VMG14 via V24-interface 

- Data administration on floppy disk or hard disk 

- Determination of the NN-altitude course of the tube, here integration of the measured data to the geodetic 

height of the reference benchmark at tube beginning 

- Determination of settlement course by subtraction of any mesuring series 

- Output of height and settlement courses in tables, as screen graphic or as diagrams via plotter or laser 

printer 

Example for a measurement: 

Profile measurement of a 

200 m long PE tube with 

jacked rods of aluminium in a 

distance of 1 m (zero measurement) 

NN altitude course 

Settlement course after comparison 

of measuring series 

between first sequence measurement 

and zero measurement 




Accessories for Pressure Cells > 

Connection Change-over Box AUK > 

Manually operated Change-over Manifold U > 

Inclination Measuring Tubes > 






Accessories for Pressure Cells – 

Measuring Tubings 

Measuring Tubings 

Art. No.: 30. . . 

Technical data of measuring line tubings of Polyamide-11 

Measuring line tubings of Polyamide-11 can be used for cells up to a load limit of max. 120 bars. 

The measuring line tubings of Polyamide-11 are well-proved for an application on site since many years. 

The assembly is very easy: Quick cut to length, no subsequant treatment of coupling joints, no corrosion 

protection necessary. 

The manufactured length is 100 up to 300 m, whereby also in case of longer tubing lengths only a small 

quantity of couplings are necessary for the tubing joints. 

Available dimensions 

Outer Ø Inner Ø Models Operating pressures Smallest bending radius 

6 mm 3 mm flexible 46 bars 30 mm 

6 mm 3 mm semi-rigid 75 bars 30 mm 

6 mm 2 mm semi-rigid 120 bars 30 mm 

The operating pressures are valid for operating temperatures up to +20 °C with a threefold security in relation 

to the space pressure. 

Pressure utilization in dependence of temperatures 

Models Up to +20°C +30 °C +40 °C +60 °C +80 °C 

Flexible 100% 83% 72% 57% 47% 

Semi-rigid 100% 83% 66% 54% 43% 

Mechanical characteristics: Flexible Semi-rigid 

Tensile strength 480 bars 550 bars 

Tensile strain (fracture strain at +20 °C) 250% 280% 

Elastic expansion 3.7% 4.2% 

Shear strength (ASTM D 732-46) 370 bars 430 bars 

Pressure strength (ASTM D 695-54) 500 bars 550 bars 

During measurement, the operating pressures can be exceeded by 50% for a short time. In this case, the 

tubing must immediately be discharged after measurement by opening of the red discharge cock resp. of the 

rotary cock at the hand pump or motor pump. 

The measuring points should only be switched at the change-over manifold after discharge. 

If the measured values are at the limit of the operating pressure, you have to take care that after 

measurement the tubings are not heated up, e.g. by sun influence whereby the liquid pressure will increase 

and the operating pressure is reduced. In this case, the tubings have also to be discharged. If the measured 

values are smaller than the operating pressure, the measuring points can be switched without discharge of 

the tubing.

Version: 20.01.2003 / IG / RA / IG / RA / P030.00.00.00.00.001R01_engl.doc 

Type BF 

For very high pressure hydraulic application 

and as feed pipe for technical fluids 

Abrasion-proof and flexible • Small weight • 

Resistant against most technical fluids • 

Heat restitance: -60 °C up to 100 °C 

(for a short time up to +120 °C) • 

Pulse strength up to more than 1 million pressure surges 

Designation: 

Tecalan 

hose 

DN 

Clear 

width 

mm 

Outer 

dia mm 

Admissible 

working pressure 1 ) 

bar for shock charge 

+20 °C +50 °C +80 °C 

Min. bending 

radius 2 ) 

mm 

Weight 

kg/100 m 

Pack. Unit 

Rolls of 

Part No. 

BF 1,8 2 1,8 4,9 700 615 555 18 2,5 100 m 2.522018.1 

BF 4 4 4 9,2 485 425 380 40 5,5 100 m 2.522040.1 

BF 6,3 6 6,3 13 455 400 360 63 11 100 m 2.523063.1 

BF 8 8 8 14,9 375 330 300 80 13,5 100 m 2.523080.1 

BF 10 10 10 17,8 340 300 270 100 19 100 m 2.523100.1 

BF 13 12 13 21,9 280 245 220 130 27 100 m 2.523130.1 

BF 19 20 19 28,1 215 190 170 190 37 25 m 2.523190.1 

Assembly with Tecalemit screw fittings 

Construction/material: Inside layer Polyamid 11, polyester braid, outside layer polyurethane 

1) The working pressures are valid for completely assembled hose lines. For pressure increase in 0.1s from 0 bar up to admissible 

working pressure and an operating life of min. 1 mio. pressure surges. 

2) The bending radii are valid for hose lines being under pressure, measured at the neutral fibre. In case of operating temperatures 

under –20 °C, the above mentioned values of min. bending radii have to be increased by 50%. 

Flow medium 

Resistance at 

Resistance at 

Flow medium 

20 °C 40 °C 60 °C 90 °C 

20 °C 40 °C 60 °C 90 °C 

Acetone 1 * 1** 2 3 Carbone dioxide 1 1 1 

Ethyl alcohol, pure 1** 2 3 Cooling water with frost protection 1 1 1 2 

Ammonia, concentrated 1 1 1 1 Methane 1 1 1 

Ammonia, liquid, gaseous 1 1 Methyl alcohol, pure 1** 2 3 

Formic acid 3 3 3 Mineral oils and 1 1 1 1 

Battery acid (CH 2 SO 4 ) 1 2 3 motor lubricating oils 

Petrol, pure 1 1 1** Kerosene 1 1 1** 

Benzene 1 1** 2 2 Vegetable fats 1 1 1 1 

Brake fluid 1 1 1 2 Propane 1 1 1 

Butane 1 1 1 Hydrochloric acid, 1% 1 2 3 3 

Butyl alcohol 1** 2 3 Hydrochloric acid, 10% 1 2 3 3 

Chlorine 3 3 3 3 Hydrochloric acid, 50% 3 

Cyclohexane 1 1 2 Oxygen 1 1 2 3 

Diesel oil, gas oil 1 1 1 1 Lubricating oils and greases 1 1 1 1 

Petroleume crude 1 1 1 1 Sulphuric acid, 1% 1 2 2 3 

Greases 1 1 1 1 Sulphuric acid, 10% 1 2 3 

Freon, R 12 1 1 1 1 Soap suds 1 1 1 1 

Freon, R 22*** 1 1 1 2 Scydrol (except scydrol 60) 1 1 1 1 

Glycerin, pure 1 1 2 3 Scydrol 60 3 3 3 3 

Glycol 1 1 2 3 Nitrogen 1 1 1 1 

Fuel oil 1 1 1 1 Oil of turpentine 1 1 1** 

Hydraulic oil (Ester base) 1 1 1 2 White spirit 1 1 1** 

Hydraulic oil (Glycol base) 1 1 1 2 Carbon tetrachloride 3 

Hydraulic oil (Mineral oil base) 1 1 1 1 Toluol 1 1** 2 2 

Kerosene 1 1 1** Trichlor ethylene 2 3 

Salt solution, saturated 1 1 1 1 Water (also sea water) 1 1 1 1 

Explications : 

1 = good - absolute durability without any alterations 

2 = limited – durability depending on working time and 

working conditions 

3 = not recommendable - material will be attacked and its 

mechanical characteristics will be deteriorated 

* = slight discoloration of transparent material 

** = slight swelling but no alterations of the mechanical 

characteristics 

*** = slight diffusion 

Subject to alterations. 






CONNECTION CHANGE-OVER BOX 

Type: AUK . . . 

Art. No.: 31.10 

Figure: 

P031.10SB01.vsd 

CONNCETION CHANGE-OVER BOX Type AUK 5 R 5 B 300 for leading of 

5 pressure lines and 

5 return lines 

from a concrete structural component with change-over cocks for direct connection of a hand pump resp. 

motor pump 

Available: Pressure line 2 up to 12 

Return line 2 up to 12 

for oil or air operation 

70 

e.g.: AUK 5 R 5 B 300 (B20) SK 

Quick coupling 

Air operation, load limit 20 bars 

Oil operation, load limit 30 bars 


5 pressure lines 

Dimensions: Height 200 mm, depth 80 mm 

Length for 2 measuring points 240 mm, each further 80mm. Necessary installation depth 

with connected measuring lines approx. 180 mm.


CONNECTION BOX Type: AK . . . 

Construction example: 

Art. No.: 31.01 

50 

250 mm 

50 50 50 50 50 

50 100 -150 mm 

Concrete 

Type AK 24 R 4 

for the connection of : 

24 pressure lines and 


400 mm 

50 50 50 


50 

50 

50 

50 

Pressure line 

Return line 

P031SB02.vsd 

Shuttering 

CHANGE-OVER MANIFOLD Type: U . . . 

Models: 

Art. No.: 32.01 

Models: 

Change-over manifold: 

Height 60 Width 57 Depth 30 cm 

Lower part: 

Height 60 Width 57 Depth 30 cm 

Change-over manifold U x H y B 300 with block 

cocks, load limit 300 bars for oil operation 

Change-over manifold U x H y B 40 with block 

cocks, load limit 40 bars for air operation 

X = Number of pressure lines or measuring points 

Y = Number of return lines (available only in 

groups of five) 

U = Basic frame, to be equipped with max. 25 

measuring points 

With the lower part of the change-over manifold 

UU x H y B 300 (B 40), the basic frame can be 

extended by 20 measuring points each, e.g. U 25 

+ UU 20 = 45 measuring points. 

The change-over manifolds are equipped with a 

pressure- and return connection line. In case of air 

operation, the return air escapes at the return line 

collecting bar. 

For measurement, the corresponding cock of the 

measuring point is opened. 







CHANGE-OVER MANIFOLDS, 

manually operated 

Type: U . . . 

Art. No.: 32.10 

The change-over manifolds are used for distribution of the pressure lines to the single pressure cells from a 

measuring station. For measurement, the respective stop cock to the connected cell is opened. 

Figure: 

Change-over manifold 

type U 10 B 25 

Pressure range max. 20 bars for air or oil operation, please indicate when ordering 

Models: 

U 10 H 0 B 20. . . . . 

U 10 H 10 B 20. . . . . 

U 5 H 0 B 20. . . . . 

U 5 H 5 B 20. . . . . 

Connection of 10 pressure lines without return lines 

Connection of 10 pressure lines and 10 return lines 



Casing: 

4 HE 260 for 1 change-over manifold, dimensions L 505, D 310, H 180 mm 

8 HE 260 for 2 change-over manifolds, dimensions L 505, D 310, H 360 mm 


Figure: 


U 10 in casing 4 HE with 

attached air quantity regulator 

M1 ALR 16


Figure: 


type U 10 H 10 B 400 

in instrument casing 

for 500 bars 

Models: 

Pressure range max. 500 bars for oil operation 

U 10 H 0 B 400. . . . . 

U 10 H 10 B 400. . . . . 

U 5 H 0 B 400. . . . . 

U 5 H 5 B 400. . . . . 





Casing: 

4 HE 260 for 1 change-over manifold, dimensions L 505, D 310, H 180 mm 



Construction of a measuring device for hydraulic pressure cells 

Motor pump 

1 2 

Change-over 

manifolds 

10 2 1 

20 19 

12 11 

Figure: 

Motor pump and changeover 

manifolds shown from 

rear with example for connection 

of cells 

P032.10SB01.vsd 

1 = Pressure line SW 17 

2 = Return line SW 14 

MS 20 

Load cell 

Distribution plate 

Cell for stress 

measurement 

Load 

cell 







INCLINATION MEASURING TUBES 

Inclination meas. tube alu 48 Art. No.: 76.01 


• For short-dated measuring tasks and high accuracy 

• Slope slumps: By high internal stability, smaller localized 

deformations can be expected. 

• Pile tests: Resistant at installation; the surface treatment 

ensures a precise probe guidance. 

• Borehole installation, for larger depths, small torsion by 

internal rigidity (e.g. ± 5°/30 m) 

• Special instrumentation, ambient temperature > 50° 

• Outdoor assembly at walls, elements a. s. o. 

• Restriction: Sensitive to corrosion 


• Material: Aluminium anodized 

• Length of each tube [m]: 3.00 

C 

A 

90° 

B 

D 

Type 

A 

[mm] 

B 

[mm] 

C 

[mm] 

D 

[mm] 

2“ 49 53 54 58 

Accessories: 

Art. No.: 

• Couplings (connection pieces) 76.01.12 

• End caps (cover of head point) 76.01.22 

• Terminal plug (cover of base) 76.01.25 

Inclination meas. tube ABS 50 Art. No.: 76.02 


• For long-dated measuring tasks 

• Standard instrumentation up to approx. 50 m deepening 

• On account of the smaller internal stability, more suitable 

for recording of smaller local deformations. 

• Restriction: Smaller internal rigidity 


• Material: ABS 

• Length each tube [m]: 3.00 

• Outer diameter of 

coupling [mm]: 67 

C 

A 

90° 

B 

D 

Type 

A 

[mm] 

B 

[mm] 

C 

[mm] 

D 

[mm] 

2“ 47 55 54 60 

Accessories: 

Art. No.: 



• Terminal plug (cover of base) 76.02.21


Inclination meas. tube PVC 60 Art. No.: 76.04 


• The larger inner diameter enables a better passage of the 

probe in the deformed tube. 

• The integrated adhesive coupling ensures a simple assembly. 

• The rigid tube with a wall thickness of 5 mm can be used 

for the preparation of horizontal and vertical inclination 

measuring levels. 


• Material: PVC; length each tube [m]: 3.00 without coupling 

• Coupling L=105 mm, Ø 70/76 mm (standard) 

• Reinforced coupling L=300 mm, Ø 70/80 mm 

Type 

A 

[mm] 

B 

[mm] 

C 

[mm] 

2,75” 60 70 65 

C 

A 

90° 

B 

Accessories: 

Art. No.: 


• Meas. tube PVC 60 [running m] with 

reinforced coupling, coupling L=300 mm 76.04.02 


• Terminal plugs (cover of base) 76.04.21 

Inclination meas. tube ABS 74 Art. No.: 76.03 


• The large inner diameter enables the passage of the probe, 

even in case of more deformed tubes. 

• This grooved tube is mainly used for the horizontal installation 

for settlement control with the horizontal inclination 

probe, e.g. in dam backfills. 


• Material: ABS; length each tube [m]: 3.00 

• Outer diameter coupling [mm]: 94 

• Length of coupling [mm]: 200, 300, 500 or 800 

90° 

Type 

A 

[mm] 

B 

[mm] 

C 

[mm] 

D 

[mm] 

C 

A 

B 

D 

3“ 74 82 80 87 

Accessories: 

Art. No.: 



• Terminal plug (cover of base) 76.03.21 

• Setting plate 300x300x4 mm, aluminium 76.04.31 





Flat Jack > 

Cells for Models Tests EM > 

Pressure Control Device > 

Fully automatic Inclination Measuring Device > 

Overcoring Probe > 

Sampling Device for Fluid > 

Optical Borehole Probe > 

Borehole Deformation Probe > 

Awid Stress Measuring System Device > 

Debris Rock Ball Probe > 

Permeability Measuring Device > 

Fibre Optical Strain Transducer > 

SPECIAL DEVICE CONSTRUCTION 

SPECIAL DEVICE 

CONSTRUCTION 

 





FLAT JACK 

Type: Flat Jack 

Art. No.: 10. . . 

The flat jack is a hydraulic flat pressure pad which is used for measurement of stresses in situ, e.g. in tunnel 

vaults, walls, masonries and bridge piers. 

Measuring equipment: 

The flat jack is manufactured according to the 

principle of the proved Glötzl pressure pad. Its 

small filling volume allows a reliable and exact 

contact pressure of the pressure cell with a low 

flow of hydraulic liquid. 

By the typical, extremely flat construction of the 

Glötzl pressure pad a high quality of measuring 

results is secured, as an error with this measuring 

equipment is extremely small. 

Furthermore, anchor points and at least two 

distance measuring units are used for 

measurement. A hand pump, e.g. the type M1 H16 

should be available for the necessary measuring 

pressure. 

. 

Measuring principle: 

The measuring principle of compensation carried 

out with the flat jack has been used for the first 

time by Mayer (1951). Later on, it has been 

improved by Rocha (1966). The principle is to 

cancel the deformation caused by an artificial 

destress of the rock by a compensation pressure 

produced by the flat jack. 

Normally, the pressure to be produced 

corresponds to the initially existing stress. No 

knowledge of the elastic constants of the rock 

around the measuring point is necessary. 

However, it is presupposed that the deformations 

are reversible in the range of discharge and 

recharge. A total elastic behaviour is not 

necessary.


Flat Jack models: 

a 

b 

Art. No.: Size (mm) Range (bar) a Art. No.: Size (mm) Range (bar) 

10.01.01 400 x 200 x 6 300 10.02.01 400x6 300 

10.01.02 400 x 200 x 4 100 10.02.02 400x4 100 

10.01.03 400 x 200 x 3 20 10.02.03 400x3 20 

a 

b 

Art. No.: Size (mm) Range (bar) 

a 

Art. No.: Size (mm) Range (bar) 

10.01.11 400 x 50 x 6 300 10.02.11 350 x 85 x 6 300 

b 

10.01.12 400 x 50 x 4 100 10.02.12 350 x 85 x 4 100 

10.01.13 400 x 50 x 3 20 10.02.13 350 x 85 x 3 20 

Installation and measurement: 

First, four measuring pins are placed at both sides of the 

planned saw notch by means of a template and then covered 

with cement. Empirically, the distance of these pins should be 

15 cm in the horizontal and 20 cm in the vertical line. 

Now the pins must be measured vertically to each other (zero 

measurement). This is normally done by two distance 

measuring units, as for example by electric displacement 

transducers, settlement stress cells or dial gauges. It is very 

important that this measurement is done before the next step 

(sawing of notch) as during sawing procedure a notch discharge 

occurs which results in a distance change between the 

measuring bolts. These distance differences are used for 

compensation of the notch discharge. 

Now the notch is done by a diamond charged circular saw. The 

height of this notch should only be little more than that of the flat 

jack to avoid an unnecessary air kerf between flat jack and 

notch wall. Otherwise, this notch has to be cemented to 

reconstruct the contact of both mediums. 

Now the flat jack is placed into the crescent-shaped opening 

and cemented, if necessary. 

By producing the compensation pressure with the hydraulic 

pump, the distance between the anchor points – selected before sawing – can be made. The admitted 

pressure is then giving information about the existing stresses at the measuring point. 

4 

0 

2 

0 

P010SB02.vsd 

1 

5 

b 

b 

Meas. bolt 

h 

Meas. bolt 

Meas. bolt 

Deform.measurement 






CELLS for MODEL TESTS 

Earth pressure cell, type EM 28 B5 

Type: EM . . . 

Art. No.: 18.10 

- Load limit 5 bars 

- Diameter 28 mm 

- Thickness of pressure pad 1mm 

- Thickness of connection piece 4 mm 

- The cell is delivered with a pressure line of 4 m length. Maximum possible length 5 m. 

Pressure line: ∅ inner 1.0 mm Return line: ∅ inner 1.5 mm 

outer 1.5 mm 

outer 2.1 mm 

Figure: Earth pressure cell EM 28 B5 

- The cell is constructed for air operation and measured by the electrically controlled air 

quantity regulator, type M 1 BLR 16. 

- This model can only be used in very soft and binding soils. 

- The cell can also be used in sand, with some restrictions.


Cells for earth and porewater pressure 

Type for model tests 

Type: EF . . Type: PF . . . 

Art. No.: 18.20 Art. No.: 18.30 

Figure: Earth pressure cell EF 45 Figure: Porewater pressure cell PF 45 

Type designation Load limit Control accuracy Dimensions 

EF 45 B 5 5 bars 0.005 bar 45 mm ∅ x 4 mm 

EF 45 B 10 10 bars 0.01 bar 45 mm ∅ x 4 mm 

PF 45 B 5 5 bars 0.005 bar 45 mm ∅ x 6 mm 

PF 45 B 10 10 bars 0.01 bar 45 mm ∅ x 6 mm 

All models are 4fold overpressure protected at dynamic load. 

The pressure cells are constructed for pneumatic operation and are measured by means of an air 

quantity regulator, type ALR or with an automatic measuring and recording device. 

Configuration: 

Constructed of rust- and acid-proof steel. Standard model with 5 m pressure and return line each. 

Application field: 

Binding soils and sand up to a particle size of 1 mm. 

Accessories: 

- Change-over group: optionally manual or electric 

- Air quantity regulator, type ALR 16 with manometer reading, accuracy 0.6 % of final value 

- Air quantity regulator, type ALR-D with digital display, accuracy 0.3 % of final value 

- Automatic measuring units with digital printer 




Version: 06.04.2006 / TM / IG / SP / P201.01.00.00.00.001R02_engl..doc 


ELECTRONIC PRESSURE CONTROL DEVICE 

applicable for high-salinary liquids 

Type: EDRA 

Art. No.: 201.00 

Function: 

With the electronic pressure control device, solid materials (e.g. rock- or concrete bodies) and cavities (e.g. 

pressure chambers or borings) are submitted to a hydrostatic pressure. By this, a liquid is pressed from the 

storage vessel into the corresponding test length by pumps. 

The pumping cycles are running automatically, dependent on the required control parameters nominal value, 

control limit, pressure increasing rate, and time interval. At the same time, the filling levels are recorded at 

storage vessel (inflow), and collecting vessel (outflow). 

By the collected measuring data of pressed in volume at inflow and flown out quantity at outflow , conclusions 

can be drawn about the permeability of the test length in reference to the adjusted pressure. 

The single components of the control device at inflow: 

7 5 

1 

2


Schematic assemblage electronic pressure control device 

Inflow/ 

stock 

10 

10 

140 l 

1 

127,34 l 

Pressure control 

device 

Automatic 

measuring device 

MFA 6 

Alarm 

central 

9 

140 l 

69,34 l 

105 l 

- Control of injection pump 

- Inquiry of control sensor 

- Output of alarm messages 

- Control of pressure control device 

- Storage of all meas. values 

- Configuration by modem and 

GLA software 

- Issue of alarm messages and 

information by telephone networrk 

5 6 7 

105 l 

70 l 

70 l 

35 l 

Tknetwork 

35 l 

4 

Test length 

0l 

2 

Injection 

pump 

3 

if necessary, equipped with several 

sensors, e.g. pressure- and 

temperature sensors 

8 

11 

0l 

VisioDocument 

1 = Filling level vessel at inflow 2 = Injection pump 3 = Press. sensor (real value cell) 4 = Test length 

5 = Press. control device 

6 = Automatic measuring device 7 = Alarm central 8 = Outflow pump 9 = Filling level vessel at outflow 10 = Filling level indication 

11 = Tk-netw. 

Developed and produced by order of the GSF-research centre /research mine Asse

The single components of the electric pressure control device: 


9 

10 

8 

8 9 9 

(1) Filling level vessel of stainless steel at the inflow of test length: The vessels have a volume of 140 l injection 

liquid each. If required, several vessels can parallely be connected to enlarge the volume. If the liquid 

level is dropping below a freely adjustable level, then the storage vessels are automatically refilled. 

The latest filling level is indicated directly beside the vessel and continuously recorded by the automatic 

measuring device (6) by capacitive filling level sensors. 

(2) Injection pumps, which are pumping the liquid from the storage vessels into the test length (4): The 

pumps are fully automatically controlled by the pressure control device (5). If required, the injection 

pump can abundantly be designed. 

(3) Pressure sensor (actual value cell of control) for pressure measurement in the area of test length: Measuring 

range up to max. 400 bars. 

(4) Test length: The measured values of the sensors, being installed inside and outside of the test length, 

are continuously recorded by the automatic measuring device (6). 

(5) Electronic pressure control device: Is controlling the pumps, dependent on the adjusted control parameters. 

(6) Automatic measuring device MFA6: The measuring device is controlling the pressure control device and 

recording all measured values of the connected sensors. 

(7) (7) Alarm central: Is output an alarm in case of disturbances or violation of the control limits by the 

Tk-network (language messages). 

(8) Outflow pump: The liquid, flowing out at the other end of the test length, is gathered in the pump sump 

and continuously pumped into the outflow vessel by the outflow pump. 

(9) Filling level vessel of stainless steel at outflow of test length: Acquisition of measured values is done in 

an analog matter to that at inflow. If the filling level vessel is nearly filled at the outflow, the user is automatically 

informed about this by the alarm central (7). 

(10) Filling level indications: The filling level is directly indicated each time at the filling level vessels. 

(11) Connection at the Tk-network: The automatic measuring device can completely be controlled by the 

Glötzl GLA program via modem operation, e.g. setting of parameters / administration of measured values 

a.s.o. Also the pressure control device is indirectly configurated by the automatic measuring device. 

Thus, also a remote maintenance of the pressure control device can be done.


Schematic example of control 

Press. 

[bar] 

Conditions at time to: 

Nom. value: 3.00 bars Time interval: 24 hours Press. increas. rate: 0.00 bar 

3.50 

3.45 

3,40 

3.35 

3.30 

3.25 

Meas. point 

910 

Nominal value 

Act. val. (press.sens.) 

Control limit 

Alarm limit 

Meas. point 

900 

Alarm 

3.20 

3.15 

3.10 

3.05 

3.00 

2.95 

Meas. point 910 = Pressure increase by 0.01 bar 

Meas. point 900 = Pressure increase by 0.00 bar=constant 

Time 

[days] 

0.00 

to to+1 to+2 to+3 to+4 to+5 to+6 to+7 to+8 

The above figure shows the schematic course of a control with the pressure control device. 

The nominal value (blue curve) is automatically formed by the pressure control device by the control parameters 

pressure increase rate and time interval. If the pressure increase rate is adjusted to 0, the control is done 

on a constant level. 

If the lower control limit is undercut by a pressure drop in the test length, a pumping cycle is automatically 

started till reaching the upper control limit. 

Parametering software for adjustment of control 

parameters of the electronic pressure control device 


General: 

- Suitable for high-salinary liquids 

- Designed for pressures up to max. 400 bars 

- Volume streams up to 3.0 l/min 

Filling level measurement: 

- Volume of filling level vessels: 140 liters 

- Resolution of display 0.01 liter 

Pressure control: 

- Connection to customary 230-V network 

- Two outputs for injection pumps 

- Control variants adjustable; either constant or 

by increase rates for each time interval 

- Automatic switching to second injection pump 

in case of failure of first pump 

- Adjustable control- and alarm limits 

- Control of nominal value (pressure) every 

500 ms 

- Output to alarm central 

Alarm central: 

Is sending language-oriented messages if the 

control limits are violated or in case of network 

failure 

Price on request 



+49 (0)721 51 66 - 0 · +49 (0)721 51 66 – 30 · http://www.gloetzl.com · info@gloetzl.com 




FULLY AUTOMATIC INCLINATION 

MEASURING DEVICE 

Type: NMK600A 

Art. No.: 75.80 

With the measuring device NMK600A, a new tool is available which opens completely new 

perspectives for measurements of deep inclination measuring levels. The previous, often arduous 

measuring operation, under difficult climatic conditions, can now be carried out with the new device 

- for a large extent - automatically under agreeable operating conditions. 

The measuring device can be assembled in a trailer, transporter or another vehicle with corresponding 

capacity conditions. 

• Automatic measuring operation, program controlled by PC 

- Standard measurement 

- Continuous measurement 

- Partial tube measurement 

• Only one manpower is required for assembly and operation. 

• Measuring level measurable till 600 m 

• Control of positioning by monitor 

• Weather-protected working place during measurement 

• Auxiliary heating 

• Energy supply of charging set (diesel) or batteries


Measuring Device 

Guide attachment with camera for control of 

marking position 

PC for control of measurement 

Monitor for marking position 

Guide attachment, consisting of: 

1. Return pulleys 

2. Inductive approach switch 

3. Incremental revolution transmitter 

4. Camera 

5. Terminal switch 

Control, consisting of: 

1. Cable reel 

2. Energy distribution 

3. PC with program control 

4. Motor control 

5. Generator, heating 

6. Cable duct 

7. Heating 

8. Working table


Control- and Evaluation Software GLNP 

The control of measuring program is done by the software GLNP. The measuring program can 

freely be chosen, corresponding to the requirements. The constants, corrections and evaluation 

possibilities are described in the prospectus GLNP-inclination program. 

In the field of program control, the parameters can be adjusted to the prevailing measuring job. For 

this, standard adjustments are specified in the factory which fulfil the requirements of most of the 

measuring jobs. Additional adaptations are possible, however, are mostly not required. 

Measuring programs: 

Standard measurement 

At standard measurement, the measuring points are triggered according to the basic length of 

probe. When reaching the measuring point, the probe is stopped. After a waiting time, which has 

been adjusted before, the measured values are checked and accepted according to the agreed 

conditions (digit jump, quantity of comparisons). 

Continuous measurement 

At continuous measurement, the probe is moved up with a constant speed. During measuring 

passage, measurements are permanently carried out. The measured values are averaged between 

the measuring points; the measured values nearby the measuring point get a higher assessment. 

At measuring point, the measured value is stored and a new averaging is done till the next 

measuring point. 

Partial tube measurement 

At partial tube measurement, only the part of measuring level is measured which is actually of 

special interest. Beforehand, a measurement of level must be existing as reference measurement. 

The basic length for the partial tube measurement may be a subset of the basic length of reference 

measurement. 

Measuring device during measurement 

of a 564 m deep level 

During measurement, only a control of 

function is necessary.



Measuring cable 

Cable reel 

Total height 

Reel dimensions 

Heating 

Generator 

USV 

Energy distributor 

Motor control 

Digital inclination meas. probe 

6x0.56 mm² 

PUR outer casing 

Kevlar supporting part 

Length up to 600 m 

Motor-drive with magnetic brake 

Hand-drive, separately shiftablegetrennt zuschaltbar 

2 x 6 slip ring contacts 

Cable guide 

approx. 1500 mm 

d=30 mm, D=700 mm, b=500 mm 

Diesel, 3000 W 

Diesel 5000 VA 

Operating time approx. 5 hours with one tank filling (4.3 l) 

Operation without generator possible with batteries 

1200 VA 

60 minutes at 30 % load 

Light switch 

Connection of generator plug sockets 

6 pcs. plug sockets at generator 

Connection of USV plug sockets 

4 pcs. plug sockets of USV 

Connection of 12 V supply 

Heating control 

Emergency stop for motor 

Frequency transformer 

Controller with control software 

Level transformer RS485/RS232 for probe 

Hand control for cable reel 

Weight 2.4 kgs, d=30 mm 

Basic length 0.5 m up to 2 m 

Measuring range ±30°, max. ±60° 

Linearity 0.02 % f.s. 

Hysteresis 0.001% f.s. 







OVERCORING PROBE 

System BGR - Hannover 

Type: UEBS-2D-46 

Art. No.: 78.50.01.04 

Figure: Overcoring probe for installation in a 46 mm pilot boring 

Overcoring probe UEBS 

- Manufactured of rust- and acidresistant 

stainless steel 

- Pressurized watertight model 

- Suitable for boring procedures 

with compressed air- and water 

flushing 

- Small total length 

- Application of up-to-date semiconductor 

components 

- Digital data transmission 

- Position control by integrated 

inclination sensors 

- 4 radial measuring directions 

0/45/90 and 135° 

- Centered position in borehole by 

3-point forced-guided reels 

Functional principle „overcoring“ 

If a borehole is drilled into a non-contaminated rock 

body which is loaded afterwards, then the borehole 

is changing its shape. Although it is originally 

perfectly circular, it will now get a smaller cross 

section, and furthermore in case of different lateral 

pressures, an elliptic one. 

The diameter change is here a function – among 

others – of stresses, the E-modulus and the 

Poisson’s figure. 

The appropriate is valid for the reverse case: 

If a borehole is drilled into a loaded rock area which 

is afterwards unloaded, then the borehole cross 

section will also change its shape, however now in a 

reverse direction. A complete unloading of the 

borehole surrounding area can be achieved very 

easily by coaxial overcoring of the borehole to be 

measured by a core drilling crown. 

1 

Preparation 

of the big 

borehole 

4 

2 

Preparation 

of 

pilot 

borehole 

5 

Overcoring 

of probe 

3 

Application of 

overcoring 

probe 

Stress-relieved 

toroidal core 

Fig.: 

Principle of stress measurement with overcoring probe


Sequence of an overcoring measurement: 

After executed pilotting, the overcoring probe is 

installed with the settlement rods through the 

drill-rods. 

While doing this, the displacement transducers 

of the overcoring probe are laying themselves 

closely at the borehole wall of the pilot drilling 

and are measuring at four directions – displaced 

by 45° one to each other – their diameters. 

With the integrated inclination sensors, the 

overcoring probe is aligned in the correct 

position in the pilot drilling. 

The marking unit of the overcoring probe is 

marking the borehole wall of the pilot drilling. 

By this, a later adjustment with the drawn hollow 

core is possible. 

After installation of probe, the settlement rods 

are notched out of the overcoring probe and 

then demounted. 

Now the real overcoring procedure can be 

started. 

The transfer cable is led under light tension in 

the centre of drill-rods through the drilling head. 

Figure: Installation of the overcoring probe 

Figure: Settlement rods with depth stop 

and bayonet catch 

Figure: Marking unit 

Marking unit: 

By elastic force the marking 

unit is pressed against the 

borehole wall of the pilot 

boring. 

By this, a later adjustment 

between drawn hollow core 

and position of the overcoring 

probe is possible. 

The marking pencils can be 

exchanged. 

Figure: Drawn 

hollow core 

Procedure of overcoring: 

During overcoring procedure, the following 

measured values are online made available 

to the user (boring staff) in form of a bar 

diagram and stored: 

- Diameter change of the pilot boring at 

4 positions 

- Passed boring depth 

- Actual drilling speed 

- Horizontal inclination 

- Vertical inclination 

- Temperature 

All bar diagrams can be configurated acc. to 

requirements. 

The setting of alarm limits, e.g. at 

transverse inclination, enables the recognition 

of a breaking of boring core immediately 

by colour change of the bar.


Evaluation: 

Evaluation of a measurement 

with overcoring 

probe by the 

special evaluation 

software GLA 7 of 

Glötzl. 

The diagram is showing 

the relative change 

of pilot borehole diameter 

in dependence 

on passed overcoring 

depth. 

All evaluations can be 

configurated by the 

user according to his 

requirements. 

Screen structure: 

All functions / measuring 

values of 

the overcoring 

probe are transferred 

and displayed 

online. The 

bar diagrams are 

enabling the 

engine operator to 

visually record 

quick changes and 

to make corresponding 

decisions. 

The single bars 

are updated every 

0.3 second. 

Fig.: Cable reel for overcoring 

probe 

type NMK UEBS 

Fig.: Transfer cable of the 

overcoring probe led 

through the drilling 

head under tension 

Cable reel 

Special cable reel for overcoring 

probe with pressurized 

watertight plug connector for 

connection to the overcoring 

probe. 

The plug connector for connection 

to the supply unit can be 

drawn through the drilling 

implement on account of its 

small outer diameter.


1 

3 

2 

4 

Figure: Complete equipment of overcoring probe 

Complete equipment: Overcoring probe – Meas. system: 

1. Supply unit for overcoring probe with integrated 

Laptop, accu and charger 78.50.90.01 

2. Overcoring probe with 4 displacem. transducers, 

2 inclin. sensors and temper. sensor 78.50.01.04 

3. Cable reel for overcoring probe 78.50.90.21 

4. Displacem. transducer w. connection line, 

mounted at drilling unit, for recording of 

passed overcoring distance 78.50.90.81 

Fig.: Supply unit for 

overcoring probe 

Technical data of overcoring probe: 

- Weight 2.6 kgs 

- Length 490 mm 

- Meas. range 45 up to 50 mm 

- Borehole diameter 46 – 47 mm 

- Resolution 0.001 mm 

- Linearity 0.012 mm 

- Transm. rate 25 meas. values/sec 

- Temperature range –5 °C up to 60 °C 

Further measuring ranges on request 

Technical data of supply unit: 

- Dimensions (LxWxH) 470x370x170mm 

- Weight 30 kgs 

- Connections for overcoring probe – cable reel and 

max. four further sensors 

- Integrated accu (12 V/25 Ah) and charger 

- RS485 interface for communication with the overcoring 

probe 

- Overcoring probe 

- RS232 interface for communication with Laptop 

- Recording speed 25 meas. values/sec 

Concept and idea: BGR Hannover • Bundesanstalt für Geowissenschaften und Rohstoffe 

Manufacturer: Glötzl GmbH 






SAMPLING DEVICE for FLUID 

Type: PNF-MD 40 

Art. No.: 86.10 

Sampling devices are used for specific extraction of fluids from bore holes, wells, bodies of water a.s.o. up to 

a depth of 100 m. 

The simple construction and functional mode ensures an almost maintenance-free use of the device. It has 

been developed by the Landesgewerbeanstalt Bayern, Nürnberg with the aim to create an equipment which 

is uncomplicated and easily to operate in practice. 

Device Configuration: 

- Cable reel with 30, 50 resp.100 m 

plastic cord marked and clamp for 

probe 

- Tube part of transparent PVC with 

nozzle part and slip-on part–drop 

weight 

- Bottom with sealing and extraction 

cock 

- Protection cap for extraction cock 

Figure: 

Sampling device complete with 100 m 

plastic cord, probe type MD 40-1, for 

1 l volume, max. probe diameter 

45 mm, max. weight 4.5 kgs 

P086.10FO01.tif 

Article Nos.: Models: Sampling Quantity: Plastic Cord: 

No. 86.10.01 Type PNF-MD 40/ .5/ 30 0.5 l 30 m 

Nr. 86.10.02 Type PNF-MD 40/ .5/ 50 0.5 l 50 m 

Nr. 86.10.03 Type PNF-MD 40/ .5/100 0.5 l 100 m 

Nr. 86.10.04 Type PNF-MD 40/ 1/ 30 1.0 l 30 m 

Nr. 86.10.05 Type PNF-MD 40/ 1/ 50 1.0 l 50 m 

Nr. 86.10.06 Type PNF-MD 40/ 1/100 1.0 l 100 m 

Function and Working Principle: 

The bottom part is lowered to the required depth with the plastic cord. For this, the cord is marked with colour 

every 2 m. After reaching the depth, the tube part is dropped into the bore hole guided by the cord. 

The nozzles being mounted in the tube part effect a braked tracking.and avoid turbulences, fluid escape 

during fall and ensure that only the fluid which is straight above the bottom part will be taken. 

After the tube part has reached the bottom part, both are completely closed by a double sealing system. 

The completely filled probe is drawn to the surface by the plastic cord and the sample is discharged with 

control by means of the extraction cock. 

Special models for specific fluids on request 






OPTICAL BOREHOLE PROBE 

Type: BBS 100 

Art. No.: 95. . . 

The optical borehole probe is a simple instrument for observation of borehole inclination in dry borings and 

can also be used as geodetic device for directional measurements. 

Figure: Probe with guide rods 

The borehole probe consists of a probe body 60 x 60 mm with rollers and installed, watertight pocket torch. 

A scattering disk is placed before the pocket torch for difuse light with 

orientation lines for observation. 

The inclination of the borehole can be determined by means of geodetic 

measurement, the drifting of a borehole by covering of scattering disk. 

For guidance and orientation of the probe, glass fibre rods are used in 

single lengths of 2 m which can be attached. 

Fig.: Probe w. scattering disk 

and orientation lines 

Figure: 

Drifting of a borehole 

to top left-hand corner 

Operation: Switching-on of watertight pocket torch by 

right-turning of lamp ring behind the scattering 

disk, switching-off by left-turning. Inserting of 

probe in horizontal position by means of 2 m 

long glass fibre rods.


For all application ranges where a quick knowledge is required for the underground and in the surrounding of 

each passable premises, with the exception of underwater ranges. 

Principle: Open probe with a fixed mirror, directly and indirectly illuminated 

Diameter: 51 mm 

Light source: 2 Halogen lamps 12 Volt/55 Watt 

Application limits: In case of direct observation without optical system approx. 5 m borehole depth 

(5 rod parts each 1.00 m) 

In case of arrangement of an external optical system up to 10 m and longer (in 

preparation). Application not possible in water-filled boreholes. 


Geotechnical Investigations: 

Assessment of rock conditions in the surrounding area of galleries, tunnels, caverns and similar. 

Determination e.g. of quantity and space position of existing fissures, their opening width and eventual filling. 

Control of connection between security lining and rock, determination of new fissures and their expansion, 

eventual breaking up ranges. 

Determination of changes in the borehole wall itself, e.g. by overload caused by high primary stresses, control 

of layer thicknesses in superposition range in case of meagre covering of stable rock. 

Determination of rock ranges for the arrangement of extensometer and anchor fixed points outside the 

disturbance areas, control of rock improvements by injections and similar measures. 

General Constructional Investigations: 

Control of concrete quality when using special procedures like colcrete- or contractor concrete, control of 

contact joints between concrete sections, to the rock and more of that kind. 

Replenishment of results of gained drilling cores (e.g. accordance of breaking joints in the cores with the 

borehole wall partition) 

Figure: Probe body


Description of Borehole Probe 

The principle of the borehole probe with ray course is shown in the figure below. The here shown volume is 

also the basic equipment of the probe. 

Switch for direct illumination (lamp 1) 

Switch for direct illumination (lamp 1) 

4 rod parts (1 m long) 

Probe body 

Mirror (hard-cromium-plated) 45° 

Sight ray 

Handle 

Thread connection 

Lamp 1 (12V/55W) 

Lamp 2 (12V/55W) 

Current supply optional: a) Battery 12V/32A b) Mains connection by 

battery charger 

The borehole probe consists of a probe body which is inserted into the borehole. 

It contains the hard-chromium-plated mirror installed under 45° and two lamps for direct and indirect 

illumination which can either be switched separately or also simultaneously. 

The current supply is done within the elogation rods and is generated via contacts with the coupling of rods. 

The 1 m long rod parts of 15 mm diameter are hardly limiting the field of vision, also in narrow borings 

(55 mm), particularly by the fact that no additional, disturbing cable for current supply is required. 

The rods have permanent division lines in a distance of 5 cm each with indication of centimeters. 

At each end of the rods, the handle is attached with current supply cable and both switches for the lamps. 

Current supply is optionally done either by a rechareable accu 12 Volt/32 AB or directly at supply system by 

intermediate circuit of charger. 

The rods can only be conected to each other in one position. By the permanent marking (dm-graduation) this 

position can easily be found. 

By arrangement of both poles for the current running and a third guide pin and also the corresponding 

couplings in the counter rods, no further connection is possible. 

A cap with thread is securing the mechanically reliable and stable connection. 

For elongation of combustion time of the lamps and for limitation of evolution of heat, the lamps can be 

operated with half the output by means of a switch at the accu housing. 

The observation with half the luminous intensity is also recommended in light and low-contrast kinds of rock, 

e.g. The connection of the current cable with the power supply is done by a standard plug. 

The main switch at the accu housing is showing the switch position „on“ by a control light. At the same time, 

the charging condition of the accu in active position is indicated at a measuring instrument. 

The capacity is suffiient for a continuous operation of one lamp of approx. 5 hours at full power consumption.


Operation of Borehole Probe 

The probe is assembled according to the advices in the description of the probe and led into the borehole. 

With increasing borehole depth, further rods are attached after each meter of observation depth. 

During the slow movements of the probe over the rods, the observer can examine the borehole wall by direct 

look on the illuminated mirror of the probe. While doing so, the observer can remain in the same comfort 

position without being forced to follow the movements of the probe. By the small weight of the probe, the 

instrument can very easily be guided and kept also over a longer period of time. 

Normally, the probe is slowly descended with determined vision direction without rotation of the 

instrument.The changes at the borehole wall are recorded as written note by reading of the depth and then 

eventually sketched. By surveying of the next and deepest outline of a fissure or a broken joint and 

measurement of the twisting angle of the probe it is possible to precisely survey its space position. By 

switching from direct to indirect illumination it is possible to distinguish in doubty cases dark coloured tapeformed 

deposits from open broken joints (shadow cast in case of indirect illumination). 

The illumination with both lamps is specially used for a better illumination of bigger and deeper repositories. 

Fotographs with conventional cameras (reflex camera with alternating objectives) are posible up to a 

borehole depth of approx. 2 m. 

Extension of Basic Equipment: 

At present, an equipment is still in the development stage which enables an extension of the application 

range up to 10 m and more of the borehole depth by the arrangement of an external optical system 

(monocular) fixed at the borehole mouth. 

Furthermore, an automatic photographic camera which can permanently be attached to the probe is still in 

development stage for documentation of the condition of borehole wall. 

Both developments are supplementations to the basic equipment which can separately be supplied later and 

be upgraded. 

Advantages of the Borehole Probe: 

The advantages of the probe are the uncomplicated construction, the very small weight, the easy handling 

and the simple transport „in hand luggage“ (as the current supply is internationally used, a taking away of it is 

not necessary on account of weight reasons) and its very favourable price. 

The probe can be used universally and without any holding or lifting devices. 

Below figure is showing a photograph with conventional camera (reflex camera with alternating objectives). 

Figure: 

Portable power supply unit 

with 12 Volt accu 






THREE-AXIAL BOREHOLE DEFORMATION 

PROBE 

for determination of compressive stress transpositions in elastic range 

Type: DBS . . . 

Art. No: 95.10 

The instrument is used for measurement of borehole deformations in three orthogonal directions (2 x radial 

and axial) and enables the determination of stress transpositions in elastic range (system Herget 1 , s. fig.1). 

By the mechanical precision wedge and the vibrating wire principle, long-term measurements can be carried 

out and the instrument can be recovered for the application in new measuring sections. 

Application: 

- Stress transpositions in hard rock, in concrete structures and salt formations 

- Control of construction behaviour 

- Long-term deformations in 0.001 mm range with automatic data recording 

Measuring Principle: 

In the borehole, the three-axial probe 

is a soft inclusion consisting of two 

measuring rings (figure 3) which are 

connected to each other by a telescopic 

tube. 

The deformation of the telescopic 

tube and the measuring rings is recorded 

by vibrating wires with an 

accuracy of up to 0.0002 mm/Hz. 

Connection to the borehole wall is 

done by hydraulically placed keys 

which are running on precision-refined 

contact areas. 

The installation is uncomplicated for 

boreholes with any inclination. 

Recovery is possible for an application 

in further measuring sections. 

1 Manufactured under CANMET-licence, Ottawa, Canada, US patent: 4858472, 5113707, 5463907


The measuring rings are availabe in two rigidities to 

enable a correct application in hard rock, in concrete 

of hard salt. 

Corrosion protection and temperature coefficients can 

be selected according to the in-situ conditions. The 

instrument is robust in regard to blasting and 

construction works. 

By means of calibration curves (figures 4 and 5) 

and the corresponding material laws, stress 

transpositions and energy accumulations are 

determined by upsetting deformations in three 

orthogonal directions. 

Data recording by automatic collector is recommended. 

Calibration curve for measuring ring 

Calibration curve for axial displacem. transducer 

Examples: 

In a horizontal borehole with a dia. of 118 mm four 

measuring rings are installed so that four diameters 

permanently displaced by 45° are recorded. 

After a blasting for a nearby cavern, the following 

measuring values have been recorded on 04.12.88 

(figure 6): 

Angle of diameter to the 

Horizontal 0° 45° 90° 135° 

Frequency change +22 0 -11 12 

Calibration factor 25 18 28 18 

(10 -5 mm/Hz) 

Diameter change 

(mm) 0.0055 0 -0.0031 0.0022 

Upsetting 10 -6 46.5 0 -26 18.2


The fourth measuring direction allows a quality control 

and the stress ellipse could be calculated four times. 

With an elasticity modulus of 58 GPa and a Poisson’s 

condition of 0.3 the following stress changes could be 

recorded: 

Meas. Max. Min. Angle of max. 

direction pressure pressure stress to horizont. 

(MPa) (MPa) position 

0°, 90°, 135° 2.5 -0.81 -6.2° 

45°, 90°, 135° 2.38 -0.86 -7.2° 

45°, 90°, 135° 2.52 -0.83 -7.8° 

135°, 0°, 45° 2.47 -0.95 -6.8° 

Average 2.46 ± 0.06 -0.86 ± 0.06 -7.0° ± 0.7° 

The above list shows the repeatability of the measured 

values. For the advice if the rock is in the elastic range 

or the advice to what extent the compressive stresses 

have changed by mining or cavity, a two-dimensional 

measuring arrangement is sufficent in many cases. 

However, if quantitative or half-quantitative values are 

required for planning or calibration of numerical models, 

it will be necessary to measure the reaction of rock in 

three dimensions. 

For this purpose, the probe will be delivered with three 

orthogonally oriented displacement determinations. This 

is required as minimum for the three-dimensional 

measurement. 

An example is given in figure 7 where a measurement 

of the diameter in vertical (V) or horizontal direction (H) 

would not have given any hint to the great stress change 

parallel to the borehole (A). 

Technical Data (instrument for boreholes with Ø 86 mm) 

Type Steel Radial 

stiffness 

Calibr. factor Deformation 

range 

Temperature 

coefficient 

standard normal 160 MN/m 0.0002 mm/Hz 0.2 mm 0.2 Hz/°C 

standard stainless 125 MN/m 0.0002 mm/Hz 0.2 mm 4.8 Hz/°C 

thin wall normal 17 MN/m 0.0001 mm/Hz 0.2 mm 0.2 Hz/°C 

thin wall stainless 13 MN/m 0.0001 mm/Hz 0.2 mm 4.8 Hz/°C 

Axial telescopic tube: 0.003 mm/Hz 6.3 mm -0.2 Hz/°C 

Operating frequency: 

Vibrating wire holding device: 


Watertight up to 2 bars. 

1000 - 2500 Hz 

stainless steel clamp 

-20° up to +80° (higher values on request)


Data Recording Devices: 

Multimeter with data memory and allocation 

of measuring points, type VMG11-1; 

see detailed single description 

Portable readout unit with simple ring 

memory for battery operation, 

type KMG 06-D 

Automatic measuring station MFA 6E as standard or 

Exx-model 

Watertight tube data collector 






AWID STRESS MEASURING DEVICE 

Type: Awid 

Art. No.: 96. . . 

An absolutely measuring pressure pad according to the compensation procedure, developed by the company 

Gesellschaft für Strahlen- und Umweltforschung mbH Institut für Tieflagerung, Braunschweig. 

A new system according to the method of absolutely measuring resistance jump pressure pad, abbreviated 

named AWID. 

With this system, stress measurements can be carried out without entering of material parameters of pad or 

also temperature changes in the measurements. Therefore, calibration measurements are not required. 

Figure: AWID pressure pad Ø50 mm 

Function: 

AWID 

Pressure line 

I = const 

V 

P i 

bar 

Pump 

P a 

P a 

P I 

I 

V 

= outer pressure 

= inner pressure 

= constant current supply 

= Voltage (Volt) 

Dependent on application case, the inner pressure 

is produced hydraulically or pneumatically. Current 

supply is done by means of constant supply I. If 

the inner pressure P I is exceeding the outer pressure 

P a a little, the voltage drop V is changing 

rapidly. 

Delivery Program: 

- AWID pressure pads in different models up to max. 600 bars 

- AWID pressure pads as stress monitoring stations up to max. 600 bars 

- Manual measuring devices / change-over manifolds 

- Automatic measuring devices with data recording 

Figure: Stress monitoring station with 6 pressure pads for determination of stress tensor


General Page 2 

For assessment of the stability of underground repositories, the knowledge of stress condition of the rock is of 

great importance. 

Very complicated are the in-situ conditions when the material law of the rock bond is distinctly deviating from 

the elastic behaviour as - for example -in the case of rock salt. Here, the stress is entering the calculation in 

the dimension extent of the 5 th power. 

Generally, the in-situ stresses have tensor features. The stress condition existing primary in rock without gaps 

can thus be composed of the pure weight components and thus resulting stresses, also due to transverse 

elongations. By erosion of overlying layers or by tectonic procedures, such a gravitative stress field can be 

changed or influeced. 

By construction of an underground cavity, the primary stress condition is changed. By mining dynamic 

procedures which are typical for mining, timely variable stress changes may occur. These changes can also 

be induced by heat penetration in the rock, e.g. 

For the registration of such stresses or stress changes by using technology of measurement, a variety of 

measuring methods has already been tested. 

A prerequisite for an exact measurement is the appropriate instrumentation as apart from a pure guided 

connection also a frictional connection is of great importance. The work group „Bergmännische 

Gebirgsmechanik“ of the German Research Community has presented in the year 1975 in the chapter 

„Spannungsmessverfahren“ = stress measuring procedure some essential measuring procedures in short 

form which have been developed in the frame of research project of the work group. Here specially reference 

is made to the element of NATAU which is measuring nearly free of deformation for determination of stresses 

in visco-elastic-plastic rock. A series of further measuring methods has been introduced by different 

institutions, e.g. by the “Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)”. The evaluation of 

numerous marginal conditions of stress measuring procedures by the „Gesellschaft für Strahlen- und 

Umweltforschung mbH - Institut für Tieflagerung“, Braunschweig resulted in the development of a method 

complementary to or in continuation of the procedures already used according to the system of 

“Absolutmessender Widerstandssprung-Druckkissen” (AWID) = absolutely measuring resistance jump 

pressure pad. 

Technical Description of AWID Pressure Pad 

The cell of the type AWID is an absolutely measuring pressure pad according to the compensation 

procedure. With this cell, stress measurements can be carried out without entering of material parameters of 

the pad or also temperature changes in the measurements. Therefore, calibration measurements are not 

required. With the pressure pad the standard component of the stress vector S n effecting on the pad surface 

S n 

σ 

n 

= (σ x n) x n 

= Stress tensor 

= Area standard vector 

is determined (in hydrostatic condition this corresponds to the pressure). The purpose of such a 

measurement is to determine the pressure effecting from outside, whereby the stress tensor can be 

determined with 6 linear independently arranged pads. 

Figure: AWID pressure pad 

Figure: Probe equipped with 8 AWID 

pressure pads


Page 3 

Figure1: Graph of an AWID pressure pad in its function during compensation procedure


The following measuring principle is characteristical for the AWID measurements: Page 4 

a) At the beginning of measurement (figure 1) the pressure pad installed in the rock is compressed by 

the outside adjacent pressure. By the contacts 1a and 1b a direct current is supplied. This current is 

effecting a voltage drop between the contacts 1a and 1b which is measured by the voltage pick-up 

2a and 2b. The electric resistance existing between 2a and 2b is essentially deter-mined by the 

chromium-nickel sheets A and B. The resistance of the soldering joint can be neglected. As shown, 

the current flows according to the shortest way from 1a and 1b and not over the soldering joint L at 

which the both sheets A and B are welded together at the rim. 

b) The inner pressure in the pressure pad can be produced either by oil or also by gas. At the beginning, 

the oil resp. the gas pressure in the pressure tube R is increased. As long as this pressure is 

smaller than the outside adjacent pressure, the transition resistance remains constant in ideal case. 

When exceeding the outside adjacent pressure, the transition restistance will rapidly be increasing as 

in this case the current has to take a long way in the relatively bad conductive chromium-nickel steel 

over the solder joint. The measured pressure Pi at the time of jump in resistance corresponds to the 

pressure Pa adjacent at the pressure pad (figure 2). 

As only the resistance jump is evaluated and the material parameters of the pressure pad and also those of 

the surrounding material have only an influence to the height of the jump, an evaluable measurement can be 

regarded as absolute measurement. 

Fig. 2: Measurement with the AWID in a sheath pressure unit at slow pump speed and suppressed stress 

zero point when starting the measurement 

Pa = adjusted pressure in pressure tank Pi = with pressure determined by the pad 

Measurement at a defined loaded rock pillar 

3 AWID cells (figure 4) have been installed at a rock pillar 

defined loaded by a hydraulic pad in younger rock salt at the 

„Schachtanlage Asse” (figure 3). 

Figure 5 is showing the measured values at the AWID cells 

determined in dependance of the load. Already a short time 

after installation of the AWID pads, the load existing in the pillar 

could well be measured. 

Figure 3: Rock pillar 

Figure 4: AWID pressure pad


Page 5 

Determination of thermo-mechanical stresses at heat entry in the rock 

At final disposal of highly radioactive waste in salt rock, heat is entering the rock. By this, not only the 

mechanical features of the rock bond are changing, but also the existing stresses in the rock. 

In the course of a special temperature test, the rock pressure occuring to a steel tube was determined for the 

first time by means of AWID cells. Figure 6 clearly shows the stress increase caused by the temperature 

introduced during the heating period. 

Figure 6: Pressure measurement at a steel tube with an AWID pressure pad during heating up of salt rock


Page 6 

In a 650 m deep borehole drilled from a 750 m level at the „Schachtanlage Asse“, an AWID measuring probe 

with 6 directionally oriented cells have been installed to determine the primary stress condition of the rock 

and the stress tensor. Figure 7 shows the measuring results from beginning of measurement till the 360th day 

after installation of the cells. A gas has been used as pressure producing medium. 

Figure : AWID meas. 

probe, grouted 

Figure: AWID meas. probe 

not-grouted 

Further application ranges: 

In mineral coal mining and also sometimes in salt mining, considerable rock impacts may occur during 

underground mining of mineral resources. By early knowledge of arising rock stresses, preventive measures 

can be planned to avoid the occurance of rock impacts or to reduce their destructive effects. 

On account of the small dimensions of the AWID pressure pad, an installation without problems will be 

possible, also of already premanufactures probe elements in the quarrying of borings. By independece of 

outside influences as temperature and material features, rock pressures can be measured immediately and 

directly with the AWID pressure pad.


Stress Measuring Probe for installation in boreholes, consisting of: 

1 Pressure pad system GSF – AWID, Ø 60 mm, load ranges 0 up to 400 bars 

1 Pressure pad system Glötzl, 100/200 mm, load ranges 20/50/200/400 bars 

with perforated ring injection line and rods connection 

. 

Page 7 

Probe 

Construction 

Connections 

1 2 3 4 1 

32 

6 5 

12 

20 23 

75 

1 

2 

3 

4 

5 

6 

Injection line 

Electr. connection AWID 

Rods connection 20/20 mm 

Return line for cell 

Pressure line for cell 

Pressure line for AWID 

Transducer No.: 

.................................... 

Preload value of cell in bar: .......... 

Connections AWID: 

Cable No.: Col.: Signal: 

1 red I+ 

2 white I- 

3 yellow A+ 

4 blue A-


Page 8 

Connection cable: 7 x 0.75 mm 

Construction: Screen of galvanized steel 

matting,beneath silicon cover 

fine-strand cord with No.-code 

Temperature range: -60 °C up to +180 °C 

Short-time: +220 °C 

Min. bending radius: 20 x cable diameter 

Nominal voltage: 500 V 

Rods connection 

square 20x20 mm 

15 

110 

Screwing 

2xG4LL VA tube 

Sealing w. insulat. comp. 

Connection housing 

350 

350 

250 

1000 

AWID pad No. 1 

AWID pad No. 2 

5 

Rods connection 

square 20x20 mm 

90° 

No. 1 

No. 2 

Pad arrangement 

Connections 

VA Line Pad 1 electric Pad 2 electric 

1 2 1 2 3 4 5 6 7 4 

Pad 1 Pad 2 I+ I- A+ A- I+ I- A+ A- 






DEBRIS ROCK BALL 

System BGR - Hannover 

Type: BGR/GL-GS 300 

Art. No.: 97.... 

Fig.: Debris rock ball 

Application fields: 

With the debris rock ball, the internal 

procedures of sand and stone avalanches, 

sludge streams and dust avalanches (dry 

sludge avalanches) can be examined. 

For doing this, the debris rock ball is 

equipped with 6 biaxial acceleration 

sensors, 1 three-axial vibration sensor, 

6 pressure sensors and furthermore with 

6 temperature sensors. 

By the measuring data of the acceleration, 

it is possible to determine by a twofold 

mathematical integration the speed and the 

passed distances of the mobile measuring 

instrument during the test. 

The pressure measurements are used for 

recording of the surrounding pressure of 

the debris rock ball. Furthermore, the 

pressure sensors can also be used for 

determination of the differential pressure in 

distance of the housing diameter. 

Arrangement of sensors: 

The figure is showing the 

arrangement of single sensors of 

the debris rock ball. 

The accelerator sensors and 

also the vibration sensor are 

located in the interior of the ball. 

The vibration sensor is placed in 

the centre of the probe. All the 

acceleration sensors are 

arranged with the same distance 

to the centre of the probe. 

The pressure- and temperature 

sensors are integrated in the 

skin of the ball. 

X- 

D2 

T2 

D4 

T4 

Z 

D5 

T5 

D1 

T1 

D3 

T3 

Y- 

Designation 

Function 

# 1 till # 6 Acceleration 

# 7 

Vibration- resp. 

rotat. rate sensor 

D1 till D6 Pressure 

T1 till T6 Temperature 

Z- 

Figure: Arrangement of sensors 

D6 

T6


4 

2 

4 

3 

5 

1 

4 

Fig.: Sensor and electronics carrier of debris rock ball 

Inner structure: 

Regarding the inner structure, the central 

point has been made to a robust, stable 

mechanics. 

For all components (sensors, electronics, 

plug connectors etc.) „pouches“ have been 

routed which have been poured out after 

done installation with a permanently elastic 

jointing material. 

By this procedure, a secured operation is 

granted under the rough conditions in 

which the debris rock ball plumb is used. 

The construction on a common carrier 

enables the calibration of the sensors 

without outer skin of the ball. 

1. Electronics 

2. Battery attachment 

3. Attachment of plug connectors to 

sensors in the outer skin 

4. Attachment of accelerometer sensor 

5. The three-axle vibration sensor is 

placed under the electronics directly in 

the centre of mass of the probe. 

Electronics: 

The complete electronics (supply and adaption of sensors, 

computer, memory etc.) are located on a single basic board. 


- Quick single-cycle processor 

- AD converter with 12 bit, 400 ksps, 8-channel 

- Scanning rate up to 5 kHz (vibration sensor) 

- Non-volatine memory up to 1-GBit 

- Supply by one single 3.6 V lithium cell 

- Low-power-consumption 3 V computer system 

- Application of up-to-date amplifier in SMD technology 

- Data transfer with 115 kbd 

Fig.: Electronics 

Further measuring ranges and 

sensor arrangements on 

request. 

Technical data of sensors: 

Acceleration: 

- Meas. range +/-50 g 

- Overload +/-500 g 

- Shock capacity 2000 g 

- Linearity 0.2 % 

Vibration: 

- Meas. range +/-500 g 

- Overload +/-1000 g 


- Linearity +/-1 % 

Pressure: 

- Meas. range 10 bar 

- Overload 30 bar 


- Linearity 0.25 % 

Temperature: 

- PT 1000 

Rotation rate sensor: 

- Meas. range 50-1000 °/s 

- Linearity



PERMEABILITY MEASURING DEVICE 

• Application in explosion-endangered areas (EEx I/II, T2) 

• Resoluble double packer system 

• Pressure- and temperature measurements in probe 

Type: PEA . . . 

Art. No: 98. . . 

• Registration of surrounding parameters (temperature, compressed air and humidity 

outside of boring) 

• Measuring course control, data collecting and indication of meas. values with PC 

Principle of permeability measurement: 

Boring 

3 2 

1 

3 

Connecting pipe 

Meas. interval 

1 Probe 

2 Interval rods 

3 Packer 

The complete probe body is installed in a boring by means of settlement rods. 

Then the two packers are pressed on at the beginning and end of probe body by compressed air. 

The packers are sealing the measuring interval airtight with the surrounding rock resp. salinar. 

Water resp. alkaline solution is injected into the closed measuring interval with defined flow 

quantity. 

The injection procedure is terminated after a predefined time resp. after pressure exceed in the 

measuring interval. 

Till test termination (predefined time), the pressure, temperature and flow rate existing in the 

measuring interval are measured and permanently stored. 

Conclusions to the permeability of rock resp. salinar can be drawn by the gained measured values 

(pressure increase during injection resp. pressure decrease after injection compared with time). 

Permeability probe 

Cable reel 

Figure: Principle: Complete permeability measuring equipment 

Control-and 

evaluation unit


The following figure schematically shows the complete structure of permeability measuring 

equipment in ex-version. 

Keyboard 

Display 

Data station 

EEXP 

D 

I/O 

A 

V24 

ADC 

Flowcontrol 

6 

M 

F 

M 

24 V 

Zener barriers 

+ 

+ 

+ 

+ 

+ 

Compressed air to 

interval 

Plug connector 

Compr. air for interval 

Probe 

Packer 2 

Interval 

EEx de (ib) IIC T6 

Temp. 

Pres.1 

Packer 1 

Sensors in gallery 

Blow-out 

filter 

Temp. 

Control interval 

Humid. 

Quick coupling 

Compr. 

air 

24 V 

Compr. air to packer 

Pres. vessel 

Druck 2 

171.01.00.00.104.R0.vsd 

Mains 

Packer discharge 

Figure: Assemblage of permeability meas. equipment 

Pneumatic 

Pressure impact 

Blow--out line 

Permeability probe: 

Figure: Permeability probe in three-part transport case 

End piece w. reels 

Packer unit 

Coupling part w. reels 

Interval rods 

Interval rods 

Coupling part w. reels 

The complete probe unit can be elongated 

to any length by assembly of several 

interval rods (basic length 2 m) via coupling 

parts. 

The probe as well as the interval rods are 

manufactured of rust- and acid-resistant 

stainless steel. 

Pressure- and temperature sensor are 

placed in the probe. Operation of sensors 

is done intrinsically safe according to EXi 

with 4–20 mA signals. 

T 

D 

I 

Measuring probe with: 

- Temperature 

- Interval pressure 

- Sens line/interval 

Packer unit 

Connection unit for rods 

with cable 

The figure at right-hand side shows the 

electrical and pneumatic connections at the 

permeability probe. 

Figure : Assemblage permeability probe 

Figure: Probe connections


Cable reel of permeability measuring device: 

The figure shows the rotary currentoperated 

motor cable reel with 

600 m special line for the permeability 

measuring device. 

The line is marked by the meter in 

order to have a control about installation 

depth during installation of 

probe. 

All required electric and pneumatic 

lines as well as the high-pressure 

lines are integrated in the special 

line. 

Figure: Cable reel of permeability measuring device 

1. High-pressure flexible line 4. PETP – Inner casing 

2. Polyamide flexible line 5. PUR – Outer casing 

3. Electric line 

Data station of permeability measuring device: 

Figure: Assemblage of high-pressure flexible line 

The data station is placed in the EEX-pcasing 

for application in the Ex-zones 1 

and 2, group IIC T4. 

The casing is manufactured of stainless 

steel and contains the following units: 

• PC-computer unit with AD-converter 

board (16 bit) 

• Flow-control for flow rate measurem. 

• Galvanically separated RS-232- 

interface 

• RS-485-interface 

• Installed multiplexer for sensor inquiry 

of sensors in the probe and of the 

environment 

• Valve control and valves 

Figure: Data station 

Figure: Data station connections


Control- and evaluation software 

The control- and evaluation 

software „Permsond“ is offering 

all required functions for 

test performance. 

All measured values (meas. 

values of probe and also 

meas. values of environment) 

are displayed online. 

Free configuration of units, 

max. pressures, storage rates 

and hysteresis adjustments for 

packer pressures and much 

more are available for the 

user. 

After a power failure, the computer 

is automatically starting 

the software „Permsond“, and 

the current test is automatically 

continued. 

Figure: Main window „PERMSOND“ 

Figure: Permeability measuring device in application 

Figure: Evaluation with „PERMSOND“ 

Technical data - sensorics: 

Sensors in environment: 

Compressed air sensor: 

• Meas. output signal: 4-20 mA 

• Meas. range: 800–1200 mbars 

Air humidity sensor: 

• Meas. output signal: 4-20 mA 

• Meas. range: 0–100% RH 

Temperature sensor: 

• PT 100 : 4-20mA 

• Meas. range: 20 up to 70 °C 

Permeability probe: 

Temperature sensor: 

- Meas. output signal: 4-20 mA 

- Meas. range: 20 up to 70 °C 

Interval pressure: 

- Meas. output signal: 4-20 mA 

- Meas. range: 0–60 bars 






Fibre Optical Strain Transducer 

Type: FOS D 250 

Art. No.: 101.01 

Description 

The fibre optical strain transducer has especially been developed for the sensible application in explosionprotected 

areas for long-term measurement of steel- and concrete expansions. 

The sensor itself consists of a fibre optic Bragg grating, a structural element which is mostly used in optical 

telecommunications. 

The term Bragg grating means a large number of small reflection layers which are written into a monomode 

glass fibre by ultraviolet laser light with constant period length and thus are forming a grating. 

The thus produced optical gratings are giving a wave length-encoded signal in dependence of their 

expansion or of temperature of grating area. 

1 2 3 4 

Application 

This transducer is mainly used in installation locations in a 

big distance (possible cable length up to 1,000 m) at 

barrages, hydraulic structures, galleries and shaft 

extensions, furthermore at power stations in minings in 

explosion-protected areas and concrete constructions, e.g. 

piles and supporting walls. 

Installation is easy and uncomplicated as for conventional 

systems. Its robust construction – an obligation for the 

Glötzl measuring instruments – and its bending insensitivity 

enables an application nearly everywhere.Typical 

application ranges are concrete- and steel expansion 

measurements, also in concrete with coarse additives. 

Thus, the sensors can be placed into the body directly with 

the backfill and be attached at the existing reinforcement 

with the drill-holes in the anchor disks by means of binding 

wire. 

The long-term control can be of decisive importance if a 

sensor should be used for a probable operating time of 

more than 20 years. In this case, corrosion-resistant 

materials and passive measuring elements are an aboslute 

prerequisite for such a job. Furthermore, this sensor can 

not be influenced by electromagnetic background radiation. 

Model 1 

Model 2 

Model 3 

Model 4 

with heavy dowel plates for subsequent attachment at outside construcctions 

for concrete strain measurement inside of backfilled cavities 

along reinforcement rods 

the free version for assemblage at individual mounting plates according to clients’ request, e.g. welding plates, rope clamps 

and angle holders

Betr. Start Stop Next Print Cont. Rep. Trans. 

Prog 

Time Lin Help 


7 8 

9 

- 

4 5 6 + 

1 2 3 . 

1 

0 

E C 

S1 

2 

S4 

S5 

Collect. 

vessel 

3 

1 2 3 4 5 6 7 8 9 

4 

S2 

Collect. cable 

Modem 

serial 

Collect. cable 

Collect. 

vessel 

S3 

Evaluation 

software 

GLA 7 

The data recording unit consists of an automatic measuring device of type MFA for the control of up to 

999 measuring points, an electrical and optical change-over manifold and of the core component, an AWE 

monitor station with analog or optional digital measuring output which is also available as 2-channel 

measuring device. The control and data storage is done by the automatic measuring device MFA. It can 

easily be read out and programmed by remote control via an analog- or ISDN modem of a personal 

computer. 

For evaluation and programming of the measuring device we recommend our Windows software GLA 7 on 

the base of an up-to-date SQL data bank with a lot of possibilities of display and visualisation of your project 

and the data recorded with it. 

5 

4 

3 

2 

1 

6 

7 

8 

9 

10 

11 

Schematic assemblage: 

1. Assembling holder head piece 7. PG protective screwing 

acc. to client’s request 8. Watertight protective sleeve for 

2. Optical monomode glass fibre Spice connection 

with Bragg grating 9. Fibre connection with watertight 

3. Casing of stainless steel sealed SILGEL filling 

4. Assembling holder base 10. Standard cable length up to 1000 m 

acc. to client’s request 

without reinforcement 

5. Cable screwing 11. Angular cut plug for minimum 

6. PE protective tube damping loss 


Basic length: 

250 mm (approx. 290 mm total length) 

Model: 

Stainless steel 

Operating temperature: -30 °C up to approx. 80 °C 

Measuring range: 0 up to 0.5 mm elongation over basic length 

(upsetting adjustable by prestressing of up to 

80% within measuring range) 

Resolution: 

0.02 % VE 

Measuring accuracy: 0.2 % VE 

Temperature 

sensitivity: 

< 0.05 % VE individually determined 




Modular Measuring Station MFM > 

Dynamic Measuring Device DMA > 

Field Measuring Station FAB > 

Datalogger FAG > 

Datalogger FAW > 

Datalogger DL and BDL > 

Micro Measurement Station MDL > 

Measurement System MCC > 

Measurement System MCC + MCC LT > 

Measurement System PCMFA > 





Stand: 23.07.2008 / SP / P050.01.00.00.00.001R00_engl.doc 


Modular Measuring Station 

for maximal 1,000 sensors 

• Variable mode of operation 

• As measuring station in the measuring line 

• Self-sufficient as datalogger 

• Data transfer via dedicated line, fixed network, 

GSM or ISDN modem, LWL, USB 

• Universally programmable 

• Easy assembly and handling 

• Modularly upgradable 

• Alarm output, 6 potential-free contacts, controlled 

by parameter setting in the single 

measuring point for alarm limit values 

Application 

For construction control, e. g. of barrages, tunnels 

and bridges 

Type: MFM71 

Art.-No.: 50.01 

• 

• 

• 

• 

Description 

The modular measuring station MFM71 is able 

to suppply up to 1,000 sensors in its greatest 

extension dimension and automatically measure 

them. All inputs are galvanically separated to one another, The measuring station is universally programmable 

for the application of most of the electric sensor types. 

Pneumatic and hydraulic sensors are measured by a separate pneumatic controller type ACH, which can be 

mounted locally separated, the gained measuring values of which are serially input. Further serial sensors 

with GMS7-bus (e.g. plumb- and leakage water measuring devices) can be connected and measured. 

Modular construction 

The complete measuring station is modularly executed and consists of a station centre and the offset multiplexers 

for 20, 40, 60 or max. 80 sensors each. By this, the quantity of measuring points of the MFM71 can 

be adjusted to the required sensor numbers in the construction. The multiplexers are installed in the proximity 

of the sensors, and are connected to the station centre by a 10-core bus cable. The programs GLA7 or 

GKSPro for Windows are used as programs for parametering, input and management of the measured values. 

For example, the following items can be adjusted at the station: 

• Different measuring times for the sensors (30 time programs), subdividable in groups (max. 60 measuring 

points for each time program) , freely selectable time cycles 

Supply type for each sensor 

Quantity of measurements for each cycle 

Quantity of measurements for averaging 

Freely programmable recognition of limit values and signalization by alarm relay 

The measuring results are fail-safely stored. For an increased security, each measured value is filed with date 

and time. 

Information memory 

Additionally, important events and failures are filed in an information memory in the MFM71, which can be 

downloaded by the operating routine. These can be, e.g., the switch-on and switch-off of the station, the programming 

of sensors and time programs or errors at initialization of a modem. 

Data downloading of measured values 

The measured values can be downloaded at any time. This can be done on site by means of a laptop resp. 

via a RS485 line from a central station. Modems can also be connected, and then allow an access from any 

place you like. 

A remote adjustment of the measuring program can be done by autorized users from any place at all.

Version: 23.07.2008 SP / P050.01.00.00.00.001R00_engl.doc 

Energy supply 

In the self-sufficient operation, the energy supply can be secured over long periods by means of Li- or SLAbattery. 

Generally, lead or NiMH-accus are used which are charged by network or solar cells. 

Technical data 

Nos. of measuring points: up to 1,000 (four-wire circuit) in several variant modular in steps of 20 sensors 

Connectable sensors: 4 – 20 mA e. g. displacement transducers, pressure sensors, 

leakage water measuring devices 

1mA 

e. g. Pt100 temperature transducers 

5V/ 0.2mA/ 1mA-bridges e. g. pressure transducers, temperature sensors 

Vibrating wire 

e. g. pressure-, strain-, inclination-, 

temperature transducers 

Serial sensors (RS485-bus) e.g. active cells, plumb measuring devices, 

leakage water levels 

Pneumatic- and hydraulic sensors, e. g. 

pressure-, load cells by pneumatic controller 

Resolution: 

Analog: 16 bit (corresponds to approx. 0.015 % f.s.) 

Vibrating wire: 0.005 % 

Memory: 

40,000 measured values with date and time 

2,000 status- and alarm messages 

Interfaces: 

GMS7-bus compatible: 

RS485, galvanically separated, fixed line, GSM-, ISDN-modem, LWL-converter, 

USB 

Switching outputs: 

Supply: 

Supporting time: 


Dimensions: 

Failure, modem: One potential-free contact max. 42 V, 1 A 

6 project-specific ones for limit value control: Potential-free switching contact 

max. 42 V, 1A, optional 230 V, 6A, programmable by GLA, GKSPro 

Internal Li-battery, optional: external lead accu, eventual with charger 

Dependent on equipment 1 day to several months 

IP40, higher protection grades by switching cabinet 

Station centre: 19“-plug-in module 26, optional 48 TE 

Multiplexer: 255 x 115 x 70 mm on cap rail 

System outline 

Multiplexer unit with 20 measuring 

points and control 







Dynamic Measuring Device 

Type: DMA 6031E 

Art. No.: 51 

The dynamic measuring device (type DMA 6031E) consists of three different components which are all 

optimally synchronized to each other. 

1. The connection boxes: 

The lines of the sensors to be measured are connected to the connection boxes. 

2. The measuring device: 

The measuring signals are led from the connection boxes to the measuring device by collecting lines. 

The measuring device itself is delivering the supply of the electric sensors, the signal conditioning and 

also the adaptation to the subsequent measured value board in PC. 

3. The computer unit: 

A collecting line is leading from the measuring device to the computer unit. There, the measured values 

are digitalized with a resolution of 16 bits, administrated and stored. 

2 

2 

1 

3 

Fig.:Complete system: Dynamic measuring device 

Fig.: Measuring device 


Sensors: Connection of up to 30 pieces 

pressure sensors 

(e.g. pore water pressure sensors) 

Scanning rate: from 1 up to 1,000 Hz 

Storage: 100,000 meas. values each channel 

Meas. times: Examples: 

With 1 Hz : 27.7 hrs. 

With 10 Hz: 2.7 hrs. 

With 100 Hz: 16.6 hrs. 

With 1.000 Hz: 1.6 hrs. 

Evaluation: 

Import of selected measurements 

into the Glötzl „GLA“ program 

Application fields: 

Dynamic recording of the following physical sizes: 

Pressure, e.g. pore water pressure, stress e.g. concrete stress, oscillation speed, inclination (vibrations) 

References see overleaf


References: 

1. Pore water pressure- and concrete stress measurements in different depths under a track bed course 

in „Elsfeth“ and „Waghäusel“. 

2. Oscillation speed measurements at a railroad embankment (new construction line „Augsburg–Olching“) 

3. ABS Berlin – Cottbus 

Dynamic pore water pressure measurement in a decontamination section at train crossings 

4. LMBV 

Tube measurement „Bergheider See“ – Dynamic measurement of tube deviation of a drain pipe 

DIN 1200 at different load conditions. Determination of internal frequences by means of FFT. 

5. PBDE 

Dynamic measurement of stress monitoring station at train crosses. Determination of stress conditions. 







FIELD MEASURING STATION 

Type: FA . . . 

Art. No.: 53.10 

- Datalogger FAB 1/3 

- Radio datalogger FAF 1/3 

Three-channel collector of measured data for time-programmed 

measurement with battery voltage for 3 up to 6 months. 

The datalogger FAB 1/3 has been developed for reception of 

measured values in application ranges where measuring points 

have permanently to be recorded. 

Main application ranges 

♦ Measurements in impassable areas 

♦ Flooding areas 

♦ Mountainous regions during winter season 

♦ Open-cast mining areas 

♦ Changing measuring points without possible cable installation 

♦ Pumping tests 

The instrument is constructed as independent unit and can be 

installed free-accessible on level tubes, in shafts, under seal caps or 

in borings. 

The transfer of measuring values is done by a standard notebook or 

palmtop in commercially approved version. 

For data recording standard software for PC and special software 

are available. 

For an application in areas being only difficultly accessible and for 

permanent availability of measured values, the measuring data 

collectors can be equipped with remote control. 

The reception of radio-transferred data is done at accessible point 

by a data collector, type MCC and is there available for reading out 

of data. Further possibilities are radio units for elongation of range of 

transmission, modem operation with private line, telephone modem 

or wireless telephone.


Datalogger FAB 1/3 and radio datalogger FAF 1/3 


Housing 

Stainless steel, dia 70 mm, 

length approx. 250 mm 

Supply 

Bar accu 3 x 1.2 V/2.6 Ah 

Operating time FAF 3–6 months acc. to meas. interval 

Operating time FAB >12 months 

Sensor connection 1 x internal battery voltage 

3 pcs. external sensors 

Optional 4 further sensors 

Sensor supply ±10 V DC/1 mA 

Meas. value resol. 16 Bit 

Meas. range ±2.5 V or ±250 mV 

Meas. interval 1 minute up to 99 hours 

Meas. value memory 16.000 data sets standard (FAB) 

500 data sets for radio operation 

(FAF) 

Option 

Sender 

433 MHz-ISM tape 

Capacity 

10 mW 

Transmission range 1 – 1.5 km 

Figure: 

Inner part of data collector with electronic parts, accus and sender with antenna 

Construction/block schematic diagram of datalogger and radio 

datalogger 

Sender ISMtape 

Modul 

construction 

Frequency 

433.525 MHz 

Power 10 mW 

Energy supply 

for sensor 

Radio option 

Micro controller 87C751 

512 meas. values can be stored 

Wake-up-timer + real time clock 

Control of energy supply 

Communication control 

Parameter memory 

Logic supply 5 V 

DC sensor supply +/-10 V or 1 mA 

S E N S O R S 

RS232 

RS232 interface 

1200 Baud 

8 Bit 

1 Stop 

No Parity 

Bar accu 

3 cells each 

1,2 V /2,6 Ah 

The datalogger is operating in 

adjustable time intervals from 

1 minute up to 99 hours. The 

measuring frequency is also 

determining the operating time of the 

accus from approx. 3 up to 

6 months. 

Programming and data reading are 

done with commercially approved 

notebook or palmtop computer. 

Several radio datalogger are 

activated in a time-displaced 

measuring rhythm. 

The quantity of mesurements before 

sending by radio are determined and 

also the activity of each measuring 

channel. Thus, several measurements 

can be transferred in 

collected form.

Measuring sensors 


Connection of sensors is done at data collector with a watertight plug connector. The 

measuring cable is high-tensile with double shell PEHD and pression compensation tubing 

for compensation of barometric pressure fluctuations. 


Water gauge Measuring ranges 0–1 m, 5 m, 10 m, 20 m and 50 m, 

accuracy 0.1% f.s. 

Temperature sensors -20 up to +70 °C, resolution 0.05 °C 

Conductivity 

Measuring ranges according to clients’ specification 

PH probes 

0–14 pH, accuracy 1° f.s. 

Construction of radio datalogger with receiver MCC 

1 

Sender modules FAF1/3 

with 3 cells NiCd 2.6 Ah 

activated time-displaced 

max. 32 senders in one group connectable 

Radio datalogger can be constructed in groups 

with 32 senders maximum. 

In the radio reception unit MCC the transfered 

measured values are stored and then available for 

downloading. 

Remote control can be done by direct line via 

modem, telephone modem or wireless telephone. 

2 

Sensor 1 

Sensor 2 

Sensor 3 

Power supply is effected by installed accus, mains 

buffering supply or – independent on mains – with 

solar panel buffering. 

MCC 

3 

MCC 

adapted to FAF with receiver and 

Second interface, 5000 values can be stored 

Digipeater for elongation of 

transmission range 

4 

Operation by internal leads accu 12 V/6 Ah 

or external 12 V/40 Ah or mains buffering 

Downloading of unit directly by PC or modem 

conncetion 

Sender ISM tape 

433 MHz 

10 mV 

Receiver ISM 

tape 

433 MHz 

For elongation of transmission of a consisting radio 

distance or deflection of radio distance, a sender– 

receiver unit (digipeater) is used. 

When receiving a data transmission by the 

digipeater, this is checked for errors and sent to the 

receiver unit MCC for further processing. 

Micro controller with memory and real time wakeup-timer 

is buffering the input data and keeps sending, 

is also undertaking the energy control 

The distance is limited to 1-1.5 km, dependent on 

area conditions. 

V24 interface 

Communication 

PC 

12-V leads 

accu 

12 V/20 Ah


Installation and structural possibilities of 

datalogger FAB 1/3 and radio datalogger FAF 1/3 

Level 

construction 

Underfloor installation 

Installation in boring 

FAF 

1/3 

Seal cap 

FAB 

1/3 

Seal cap 

1/3 

FAF 

C 

a 

b 

l 

e 

P 

r 

o 

b 

e 

P 

r 

o 

b 

e 

P 

r 

o 

b 

e 

Water 

level 

Instrument designations and part numbers 

53.10.01 Data collector, type FAB 1/3 K1mA, for 3 measuring channels (16000 data sets) 

53.10.11 Data collector radio system, type FAF 1/3 K1mA, for 3 measuring channels (500 data sets), 

radio system for automatic transfer to the field measuring station MCC 

53.10.21 Field measuring station, type MCC, for battery and radio operation 

Accessories 

53.10.00.01 Spare accu 3 x 1.2 V/2,6 Ah 

53.10.00.02 Charger for automatic charge of accus (datalogger), connection 230 V AC 

53.10.00.11 Battery module for field measuring station MCC with radio operation 

53.10.00.12 Radio module for field measuring station MCC 

53.10.00.21 Sensor cable for data collector 

53.10.00.31 Pressure sensor 

53.10.00.32 Pressure sensor, combined with conductivity sensor 






DATALOGGER 1–4 measuring channels 

For stationary installation in and at constructions 

• Measurements in impassable areas 

• Compact model with 1-4 measuring channels 

• Up to 10 years operating time with lithium– 

batteries, dependent on data quantity 

• Meas. intervals from 1 minute up to 99 hours 

• Small construction diameter with 35 mm 

• Application/ installation from 1.5“ tubes onwards 

• Water levelling without datalogger extension 

• Approved and successfully used system 

• Battery, sensor and datalogger in housing of 

stainless steel, material 1.4571 

Type: FAG 1-4 

Art. No. 53.20.. 

Description 

The datalogger FAG1-4 is constructed for max. 

4 measuring channels, e.g. allocated by pressure 

sensor, temperature, battery voltage. Optionally 

extendable with conductivity sensor, pH probes or 

barometric pressure sensor. 

The datalogger FAG1-4 has been developed for 

recording of measuring values in areas where these 

values have permanently to be recorded under 

difficult conditions. 

One application example is the installation of 

several dataloggers in a pressure water line for a 

pumped-storage station with an operating pressure 

of approx. 50 bars. The downloading of measured 

values is only possible once a year during a tube 

inspection. 

The transfer of measured values is done with a 

standard notebook or palmtop in commercially 

approved version. For data recording, a program is 

availabe which can be operated with Windows, with 

which the data can be read, the datalogger be 

programmed and the measured values be 

exported, for example in Excel or the Glötzl 

evaluation program GLA. 

Technical data, type FAG 1- 4 

Housing of stainless steel 1.4571 Ø 35 x 390 mm 

Current supply 

Li cell 3.6 V / 5.5 Ah 

Operating time, dependent on 

recording frequency 

up to 10 years 

Sensors 

1 x Internal battery voltage 

up to 3 further sensors 

Sensor supply 

+/-5 V DC / 1 mA 

Meas. value resolution 

18 Bit 

Meas. value output +/-131.000 

Measuring interval 

1 min. up to 99 hrs. 

Meas. value memory, permanent 57.000 meas. values 

Controller similar to 8051 

Temperature application range -20 up to +60 °C 

Application 

The main field of application of the 

datalogger FAG 1-4 is the 

recording of measuring data in 

impassable areas where a 

continuous local inspection is 

impossible, however the measured 

values have to be recorded 

with a high security and data 

quantity. 

Besides water level measurements 

in level tubes, open-cast 

mining, high-water areas, 

mountain ranges specially in 

winter time and permanently 

changing, temporary measuring 

points without possible cable 

installation are further application 

fields. 

As measuring sensors, all commercially 

approved units can be 

recorded, as for example: 

- Water pressure cells 

- Barometric pressure sensors 

- Temperature sensors 

- pH-Probes 

- Conductivity sensors 

- Earth pressure cells 

- Pore water pressure cells 

- Fissuremeter/displacement 

transducer 

- Strain transducer 

- Load cell 

- Settlement meas. instruments 

Figure left: 

Datalogger FAG 1-4 in pressuretight 

stainless steel housing up to 

70 bars with integrated water level 

sensor, temperature sensor, 

controller and 2 Li-batteries for 

permanent use under water


Installation and construction of datalogger systems 

Model 

AA / AR 

Model 

AAR 

Model 

BA / BR / BAR 

Model AA – with absolute pressure 

sensor No. 53.20.01 

The pressure sensor is installed in a 

housing with batteries and controller. 

Connection to the suspension consists 

of a high-tensile cable with Kevlar 

supporting core. 

Model AR – with relative sensor 

No. 53.20.02 

Model like A, however the cable is 

additionally equipped with an air tube 

for compensation of the barometric 

pressure at the sensor. 

Model AAR – with absolute and 

barom. pressure sensor 

No. 53.20.03 

Additionally to model A, a barometric 

pressure sensor is installed in the 

connecting part for compensation. 

Measuring cable: 

Connection of the sensor logger components or sensors at the logger is done 

by a high-tensile cable PE/PUR with Teflar supporting core. The connection 

parts are sealed pressure-watertight, Ø 10 mm. 

Type A XX = 01 – 03 

Type B XX = 04 – 06 

Measuring sensors for water level: 

Art. No.: Type A absolute 53.20.XX. 01 02 03 04 05 06 

Art. No.: Type B relative 53.20.XX. 11 12 13 14 not available 

Measuring ranges [m] 0 -1 5 10 20 50 100 

Accuracy 

Standard 0.1 % f.s., can be calibrated up to 0.05 % f.s. 

Barometric pressure sensor: 


800 up to 1200 mbars, accuracy 0.05 % f.s. 

Temperature sensor: -20 up to +60 °C, resolution 0.05 °C 

Conductivity: 

Measuring ranges on clients’ request 

pH-Probes 

1–10 pH, accuracy 3% f.s. 

Model BA – with absolute pressure 


The datalogger system is installed in 

the upper part of stand pipe and only 

the sensor/sensors are connected to 

the logger system and its holding 

device by a high-tensile cable. 

Model BR – with relative pressure 


Model like BA, however the cable is 

equipped with an additional air tube for 

compensation of barometric pressure. 

Model BAR – with aboslute and 

barometric pressure sensor 

No. 53.20.06 

Additionally to model BA, a barometric 

pressure sensor is installed in the 

controller part for compensation. 

Evaluation example: 

Downloading (terminal operation) 

Evaluation GLA7 






VW – DATALOGGER 7/11 meas. channels 

for stationary installation in and at constructions and also in level tubes 

Type: FAW …. 

Art. No.: 53.40.XX 

• Large frequency range from 500 up to 3500 Hz 

• 60 V pulse vibrating wire excitation 

• Measurement in impassable areas 

• Small outer diameter of 43 mm 

• Connection of up to four VW sensors and four temperature sensors 

• Application and installation in level tubes from 2“ on 

• Up to 5 years operating time 

• Optional Integrated barometric pressure sensor for compensation of atmospheric 

pressure fluctuations 

• Battery, barometric pressure sensor and electronics installed in stainless steel housing, 

material: 1.4571 

• Pressure watertight model 

• Approved and successfully used measuring system 

Description: 

Our experience of many years’ standing in 

production and recording of vibrating wire 

sensors, as well as a continuous further 

development of our vibrating wire dataloggers 

have finally been the base for the 

universally usable, compact FAW datalogger 

which will fulfil all conceivable requests. 

Totally, the datalogger of type FAW 3-11 can 

manage eleven channels: 

4 external VW sensors 

4 external temperature sensors 

1 barometric pressure sensor for compensation 

1 housing temperature 

1 battery voltage 

The logger FAW 3-7 can each manage two 

external VW- and temperature sensors and 

also the internal channels barometric 

pressure, housing temperature and battery 

voltage. The datalogger FAW has been 

developed for acquisition of measured values 

in areas, in which these values have 

continuously to be recorded under impeded 

conditions. 

Takeover of measured values is done by a 

standard notebook in commercially approved 

model. For communication with the datalogger, 

a program – operatable under 

Windows - is available, with which data can 

be read, the datalogger be configurated and 

the measured values be exported, e.g. in 

„Excel“ or Glötzl evaluation program „GLA“. 

Application: 

The main application field of the 

datalogger FAW is the acquisition of 

measuring data in impassable areas, in 

which a permanent local inspection is 

impossible, the measured values, 

however, have to be recorded with a high 

accuracy and data quantity. 

Further application fields besides the 

water level measurement in level tubes, 

are the open cut mining, flood areas, 

rock areas, especially in wintertime, and 

permanently changing measuring points, 

at which a cable installation will not be 

possible. 

Technical data, FAW: 

Housing, stainless steel 1.4571: Ø 43x680mm 

Current supply: 

Li-cells 2x3.6V / 13Ah 

Operating time, dependent on 

recording abundance: 

up to 5 years 

Meas. value resolution: 

18 bit 

Meas. value storage permanent: 90000 meas.values 

Temperature application range: -20 up to +60 °C 

Weight: 

2.8 kgs 

Sensor supplies: 

VW sensors: 

60 V pulse excitation 

Meas. range: 500 up to 3500 Hz (Geokon a. Maihak) 

Temperature sensors (thermistors): 200 µA 

Meas. range: 

0 up to 12.5 KΩ 

Barometric pressure sensor 

(optional): 

1 mA 

Measuring range: 

800 up to 1200 mbar


Installation and assemblage of datalogger systems 

Basic board 

Lithium cell 

3.6V 13Ah 

Lithium cell 

3.6V 13Ah 

VW board 

CPU 

Read out plug 

Barometric 

pressure sensor 

Pressure-tight cable 

passage 

Battery pack 

consisting of two 

lithium cells with 

integrated cable 

connectors 


passage 

Electronics : 

- Basic board 

- VW board 

- CPU 


passage 

Connection board 

for external sensors 


screwing 

Assemblage of FAW logger 

Model BA 

Abb. 1 Fig. 1 

Fig. 2 

Model BAR 

Model BA: With VW absolute 


The datalogger is placed in the 

head range of level tube. By 

corresponding adapters, the 

datalogger can be adapted to 

nearly all diameters of level tube. 

The sensors are connected with 

the logger system and its holding 

device by a high-tensile cable. 

Model BAR: With VW absolute 

pressure- and barometric 


Additional to model BA, a 

barometric pressure sensor is 

integrated in the logger for 

compensation of atmospheric 

pressure fluctuations. 

(Pictured with water level transducer 

and pore water pressure 

transducer in the underground) 

Measuring cable: 

Connection of sensors at logger is 

done with high-tensile PE/PUR 

cable with Kevlar supporting part. 

The joints are pressure-watertight, 

Ø 10 mm. 

Fig.1 : 

Datalogger head with integrated 

read out plug and barometric 


Fig. 2: 

Datalogger connecting board for 

connection of external VW- and 


Article Nos. for order: 

Datalogger type FAW 3-11 - BA 53.40.01 Datalogger type FAW 3-7 - BA 53.40.21 

for max. 4 VW- and 4 temperature sensors, model BA 

for max. 2 VW- and 2 temperature sensors, model BA 

Datalogger type FAW 3-11 - BAR 53.40.02 Datalogger type FAW 3-7 - BAR 53.40.22 

for max. 4 VW- and 4 temperature sensors, model BAR 

for max. 2 VW- and 2 temperature sensors, model BAR 

Transfer cable datalogger to PC 53.40.51 

Spare battery for FAW 3-11 or FAW 3-7 53.40.52 

Reverse battery protection, 2x3.6V / 13Ah 

Figure on the left: 

Evaluation of measured 

values gained by dataloggers 

with the Glötzl 

GLA program 

Example of evaluation: 

Barometric pressures of 

the single dataloggers 

represented in comparison 

to time 

Figure on the right: 

Configuration- and control 

software LOGSHELL 

for communication with 

the FAW loggers 

Operating time for daily measurement ≈ 7 years 

Operating time for hourly measurement ≈ 2 years 




Recording systems Art. No. 053.60 

Version 31/05/2010 

Logger DL + BDL 

Data logger for wall installation/well logger for installation 

in standpipes 

Latest controller technology 

Data transfer via GPRS

DL + BDL 

Loggers for long-term monitoring 

The two logger models DL (data logger) and 

BDL (well logger) are based on the latest, 

power-saving controller technology and are 

mainly used in the area of long-term monitoring, 

also with battery operation. A large variety 

of sensors from our product range can 

be universally connected to the loggers. 

No matter whether you need linear displacement 

sensors, pressure, temperature or 

force sensors – the loggers can be configured 

individually to suit your requirements. 

The measurements are recorded at regular 

intervals and are transferred to a central 

collection point. In measurement mode, programmable 

limit values monitor the recorded 

measurements and, if required, can trigger 

e-mail or SMS messages. Thus DL and BDL 

work as active reporting units for events that 

exceed the limited threshold range. Using 

our loggers and the associated data analysis 

by our system reduces your costs to a minimum 

and also gives you a good oversight in 

large projects. 

As with all our devices, we offer the option of 

adapting special sensors, such as vibrating 

wire sensors, on request. An interface for a 

corresponding variable measurement adaptation 

is available. 

The data can be taken from the logger via a 

USB interface and can then be read out on a 

local PC. We also offer modern data transfer 

to the Internet. At defined intervals the data 

is transferred to a GLL server from where 

you can read it out and view it at any time 

via a browser with no additional software. 

The measurements are transferred via GPRS 

with secure SSL encryption, which protects 

them from unauthorised access. 

Fig. BDL 6“ end cap with GPRS antenna 

KEY DATA 

Max. 8 sensors can be connected 

16-bit analogue/digital conversion 

Storage capacity for max. 800,000 

measurements 

Operated with conventional mono-cells 

1 time programme for measurements at 

intervals of between 1 minute and 24 hours 

1 time programme for data transfer to the 

Internet via GPRS 

IP65 protection type, higher if required 

Internal battery capacity is recorded 

Operating time 2 to 3 years depending 

on the mode of operation and the 

frequency of GPRS transfer 

Standard power supplies 1 mA, 

0.1 mA, 1 V 

Standard measurement inputs 18 mV/ 

300 mV/2400 mV 

Additional slot for optional extendable 

power supply (4-20 mA/AD 590, 

vibrating wire, LVDT) 

Fig. Base of the BDL, with atmospheric pressure 

compensation 

DATA TRANSFER 

Standard with USB interface to local 

readout PC 

Bluetooth version 

Internet version with modem antenna with 

GPRS data query and Internet transfer 

ACCESSORIES 

Internal atmospheric pressure sensor 

Seba cap with GPRS antenna 

Terminal programme GLL V3 

3“ or 4“ level adapter 

Bluetooth 

LAN 

WLAN 

Intelligent Network (ZigBee) 

Solar panel 

Power supply 240 V AC

GLL-SERVER 

The operation of a GLL server is a component 

of the configuration as GPRS logger. 

At defined times the DL and BDL loggers 

transfer their measurement data to a server 

on the Internet where the data is available in 

a database. The presentation and configuration 

by the customer are password protected 

and can be done via your existing browser 

with no additional software needed. 

Fig. DL with water pressure sensor and PG connections for up to 8 sensors, GPRS radio antenna 

CHOICE OF FUNCTIONS: 

Query logger status (battery charge level) 

Display/download measurements 

Change time programme of logger 

measurements 

Define GPRS parameters, i.e. transfer 

frequency 

Change channel parameters of the logger 

Define up to 10 calculated measuring 

points in the GLL server (any formulas and 

units can be used), average measurement 

data of the original channels against 

each other, e.g. atmospheric pressure 

compensation 

Change time 

Activate alarm monitoring. Define limit 

values on all measured and calculated 

measuring points of the logger 

Configurable alarm responses by e-mail 

and/or SMS to the customer‘s address 

User-defined configuration of alarm 

messages 

ADVANTAGES 

Project-related management and overview 

of your own loggers 

Customer access to the GLL server via 

user name and password 

Protected data connection via SSL 

encryption, transfer rate approx. 3,500 

measurements per minute 

Automatic e-mail sending and limit 

value alarms 

Remote configuration of parameters/data 

via an Internet browser 

All changes made on the Internet are 

automatically synchronised with the 

GPRS logger 

GLL-Server server administration 

Verwaltung 

Data for access to the demo so you can 

get to know the functionalities: 

www.gllserver.com 

User name: Demo 

Password: Passwort! 

Internet 

Measured data download and optional automatic 

e-mail transfer of the current data 

packets in different file formats (zip archive, 

AES encryption if required) possible. 

GPRS 

Customer‘s Kunden 

computer Rechner 

Glötzl GLÖTZL 

Kundendienst 

Customer 

Service 

GPRS 

Fig. Data transfer via GPRS, convenient logger management 

on the Internet, right DL left BDL

TYPE KEYS/VARIANTS DL + BDL 

All loggers are available in different configuration 

levels. You can obtain more design 

variants and information about the respective 

types via the type sheets or on request. 

Fig. BDL 1 vent for atmospheric pressure compensation, 2 sensor cables 

Example of a variant that can be ordered consisting of the following type key 

BDL 2 s i k A Design: 2-channel, with solar panel, with Internet, atmospheric pressure sensor, 4-20mA sensors 

Channel version 

2 2-channel 

4 4-channel 

8 8-channel (only DL) 

Enhancements 

k Atmospheric pressure sensor 

i Internet version with GPRS 

b Bluetooth version 

n LAN 

w WLAN 

q Intelligent Network (ZigBee) 

s Solar panel 

a Power supply 240 V AC 

Optional sensor supply (one can be chosen) 

A 4-20 mA sensors 

S Vibrating wires 

L LVDT 

D Expansion strips 

T AD 59 

Version 1/ B 053.60 Logger DL-BDL en.pdf 

GLÖTZL Gesellschaft 

für Baumeßtechnik mbH 

Forlenweg 11 

76287 Rheinstetten 

Germany 

Phone +49 (0)721 51 66 - 0 

Fax +49 (0)721 51 66 - 60 

info@gloetzl.com 

www.gloetzl.com



MICRO MEAS. STATION 

GSM – Radio antenna 

for 20 / 40 sensors 

Type: MDL 41 / 20 

Type: MDL 41 / 40 

Art. No: 54.01/02 

Solar cell 

Basic equipment: 

- Glass fibre reinforced wall housing 

350 x 250 x 170 ( L x W x D) 

- Terminal clamps for the sensors: 

(MDL 41 / 20) 20 pcs. 2– and 4-conductor 

(MDL 41 / 40) 40 pcs. 2– and 4-conductor 

- Integrated accu for measuring periods of 

1 week up to several years 

Extensions / options: 

- Double-walled thermohousing 

- Solar cell with solar regulator 

- GSM–modem 

- Mains charger and accu for mains buffering 

- Networking of several systems 

Internal view with basis – connection 

board and central unit : MDL 41 / 20 

MDL 41 / 40


• variable operation mode 

• self-sufficient as datalogger 

• as micro meas. station in meas. network 

• data transfer by dedicated line 

modem, radio or GSM, LWL 

• universally programmable 

• easy assembling and handling 

• completely exchangeable 

Application 

For construction control of 

barrages, tunnels and bridges 

Connections: 

1 RS 232 

serial interface 

2 Special functions 

(e.g. alarm, modem a.s.o.) 

Description 

The micro measuring station 

MDL 41/20 can supply and 

automatically measure up to 

20 sensors (MDL 41/40 up to 

40 sensors). All inputs are 

galvanically separated from each 

other. The micro measuring 

station is universally programmable 

for the use of most 

electric sensor types. As program 

for parameterizing, reading 

in and administration of measuring 

values, the program 

GLA7 for Windows (98, NT4, 

2000) is used. Adjustable at the 

station are for example: 

• Different measuring 

times for sensors which 

can be subdivided in 

groups 

• Type of supply for each 

sensor 

• Quantity of measurements 

for each cycle 

• Quantity of measurements 

for formation of 

mean value 

• Detection of limit values 

and indication 

• Message of state and 

malfunction 

The measuring results are 

stored fail-safe; for increase of 

safety, each measured value is 

filed with date and time. 

In self-sufficient operation, the 

energy supply can be ensured 

over several years by means of 

a Li-battery. Normally, lead or 

NiMH-accus are used which are 

charged by network or solar 

cells. 

The stored measured values can 

be downloaded at any time. This 

can be done by laptop or reading 

device resp. by a single wire 

from a central unit. Modems can 

also be connected and then 

enable an access from any point 

you like. 

A remote adjustment of the 

measuring program can be 

carried out by an authorized user 

from any point or location. 

The complete micro measuring 

station is constructed in a 

pluggable way and can 

subsequently be attached to 

already installed GDS7-compatible 

connection units which thus 

can be measured automatically. 

For measurements for a limited 

time or for extreme applications, 

complete measuring networks 

can be exchanged by attachment. 

An option with display and 

keyboard is offered with the 

desgination micro measuring 

station MDL 46. With this unit, 

measured values can be 

regarded and adjustments can 

be changed in-situ without 

assistance of a laptop.


Technical data type MDL41 

Quantity of meas. points: MDL 41/20: 20 pcs. (four-wire circuit) 

MDL 41/40: 40 pcs. (four-wire circuit) 

Connectable sensors: 4-20mA e.g.: Displacem. transducers, pressure 

sensors, leak. water meas. units 

1mA 

e.g.: Pt100 – Temperature transducer 

2.5V/ 0.1/ 1mA-bridges e.g.: Pressure transducers, 


Vibrating wire 

e.g.: Pressure-, expansion-, inclination-,temperature 

transducers 

Optional: Serial sensors e.g.: Active transducers, plumb meas. 

(RS485-bus) 

devices, leakage water level 

Accuracy: 

0.05% analog 

0.005% vibrating wire 

Memory: 10,000 meas. values with date and time (opt. 20,000) 

1,000 state- and malfunction messages 

Interfaces: 

RS 485, galvanically separated, GMS7-bus compatible 

Wire-, radio-, GSM-modem 

LWL-converter 

Circuit outputs: 

Supply: 

Support time: 


Dimensions: 

Alarm, power, communication: One potential-free contact each 

max. 42V, 1A 

4 project-specific programmable outputs open-gate 

max. 28V, 0.5A 

Internal Li-battery or external lead/NiMH-accu event. w. charging unit 

Acc. to equipment 1 week .... several years 

IP55, opt. IP67 

200x112x70mm (without switch-on plate)





Art. No. 056.00 

OVERVIEW 

Messanlage MCC + MCC LT 

Measurement Communication Control 

Automatic measurement system in the area of 

communication with flexible parameter programming 

Version 04/08/2010 

SERVICES DISPLAY DEVICES SOFTWARE AND SERVERS RECORDING SYSTEMS SPECIAL DEVICE CONSTRUCTION INSTALLATION MATERIAL MOBILE MEASUREMENT SYSTEMS TRANSDUCER

MCC 

Measurement Communication Control System 

The multi-talent among the measurement systems – incorporating your ideas - 

MCC 4.0 LT 

DESCRIPTION 

The „little“ digital measurement chain system 

to log different types of controller chains. 

TECHNICAL SPECIFICATIONS 

Digital inputs: 

2 x RS485 

Analogue inputs: 

Controller 

Measurement channels to: 200 

Measurement programs: 20 

Measurement frequency: 10 Hz 

Messages in ring memory: 1,000 

Measured values in 

ring memory: 1,000,000 

Power supply: 

240 VAC 

Adapter 

MCC 4.0 LT I 

DESCRIPTION 

The „independent“ system with GPRS data 

connection and extendable battery supply for 

standalone measurement tasks. 



2 x RS485 


Controller 

Measurement channels to: 200 






Power supply: 

240 VAC 

Optional battery and solar 

MCC 4.0 S 

DESCRIPTION 

The „compact“ and individually configurable 

measurement system. 



2 x RS485 

2 x RS232 


Multiplexer 

Controller 

Digital outputs: 

6 x I/O 

Measurement channels to: 1,000 






Power supply: 

240 VAC 

Optional battery and solar plant 

FUNCTIONS 

Sliding average view 

Filter functions 

Median calculation 

Differentiation of changes in value 

Automatic compensation 

Measured value calculation 

Measured value coupling 

Cascading formulas 

Redundancy alignments via logical operations 

Combination alarms for up to 10 groups 

3-stage limit value monitoring 

COMMUNICATION 

LAN, 

USB Ready 

FUNCTIONS 












COMMUNICATION 

LAN, GPRS, 

USB Ready 

FUNCTIONS 










Programmable actions 



COMMUNICATION 

LAN, GPRS/UMTS, GSM 

Analogue, ISDN, USB Ready

If, in addition to procuring a reliable measurement system, you also have high demands as 

regards communication and direct data processing, you‘ll find that this system meets all your 

requirements. The MCC is a very universal, extendable measurement system from GLÖTZL that 

can work with all the usual communication technologies. 

MCC 4.0 L MCC 4.0 19“ 

MEASURING POINT EXTENSION 

DESCRIPTION 

The „comprehensive“ multifunctional and 

individually extendable large system. 



4 x RS485 

2 x RS232 

6 x I/O 


20 on Board 

Multiplexer 

Controller 

Digital outputs: 

6 x I/O 

Analogue outputs: 

4 x 4-20 mA 







Power supply: 240 VAC battery bached 

optional battery and solar plant 

FUNCTIONS 













COMMUNICATION 

LAN, WLAN, VPN, GPRS/UMTS 

Analogue, ISDN, GSM, USB Ready, and many 

more 

DESCRIPTION 

The „replaceable“ measurement cabinet variant 

and MFA-compatible replacement system 

for long-term use. 



4 x RS485 

2 x RS232 


20 on Board 

Multiplexer 







Power supply: 

240 VAC 

FUNCTIONS 













COMMUNICATION 

LAN, WLAN, VPN 

Analogue, ISDN, USB Ready, and many more 

Multiplexers for analogue measuring points 

with fixed standard power supply 1) 

MU 10 

MU 20 

MU 40 

Multiplexers for analogue measuring points 

with variable programmable power supply 1) 

MUX 10 

MUX 20 

MUX 40 

Multiplexers for vibrating wire gauges 

Basic MDL measurement controller 1) 

MUS 20 

MUS 40 

MUS 60 

DC 2/4 digital measurement controller for 

chain instrumentation. 

Extended switch group 19“ 1) 

UA 20 

UA 40 

Wireless modem bridge 

for wireless connection of a remote 

controller measurement chain and digital 

inclinometer chain 

1) not for LT versions

ACCESSORIES 

OPTIONAL ENHANCEMENTS 

FUNCTIONAL ENHANCEMENTS 

WARNING AND SIGNAL UNITS 

Alarm column 

with visual and acoustic alarms 

UKR signal controller for up to three output 

signals 

PLC signal switching, potential-free 

Telenot signal unit 

ALTERNATIVE POWER SUPPLIES 

Uninterruptable power supply (UPS) 

Battery operation enhancement 

Solar support enhancement 

HOUSING & INSTALLATION MATERIAL 

19-inch upright housing (cabinet systems) 

Fans and air conditioning 

Indoor wall cabinet 

Double-wall, fully insulated air conditioned 

housing 

Housing heating 

Vandal-proof housing 

Vandal protection 

Housing for operation in transport routes 

COMMUNICATION 

DSL router 

WLAN router 

GPRS modem 

GPRS/GSM combination modem 

ISDN industrial modem 

Analogue industrial modem 

Bluetooth communication module 

ZigBee communication module 

External antenna 

Antenna masts 

Digital VAISALA weather station 

Air pressure, rain volume, hailstone size, 

wind strength and wind direction 

REAL TIME DATA VISUALISATION 

External monitor with order-related online 

visualisation at the customer‘s request 

Lightning protection elements 

Ex-proof housing 

Earth anchor 

Measurement and office cabine 

Mast mounts 

Pipe bracket mount 

Wall mounting 

Version 1/ P 056.00 Messanlage MCC en 



Forlenweg 11 


Germany 

Phone +49 (0)721 51 66 - 0 

Fax +49 (0)721 51 66 - 30 


www.gloetzl.com

Recording systems Art. No. 056.00 

Version 12/05/2010 

Measurement System 

MCC + MCC LT 

Measurement Communication Control 

Automatic measurement system in the area of 

communication with flexible parameter programming

MCC 4.0 + LT 

Measurement Communication Control System 

The multi-talent among the measurement systems – incorporating your ideas - 

WHAT YOU CAN EXPECT 

If, in addition to procuring a reliable measurement 

system, you also have high demands 

as regards communication and direct data 

processing, you‘ll find that this system meets 

all your requirements. The MCC is a very universal, 

extendable measurement system 

from GLÖTZL that can work with all usual 

communication technologies. 

Its special feature is the many different applications 

it can be used for through simple 

parameter programming. You‘ll really begin 

to appreciate its functional capabilities when 

you‘ve realised all your own ideas and concepts 

through programming. 

Sensors are connected to the measurement 

system only digitally via an RS485 bus. 

Consequently, digital sensors can be connected 

directly to the measurement system in a 

chain installation. All GLÖTZL protocols are 

supported. 

Analogue sensors can also be connected flexibly 

via any multiplexers connected in series. 

This allows short cables on the analogue 

sensors, which increases the accuracy 

of the measurements and minimises fault 

vulnerability. 

The connection and querying of the measurement 

system is uncomplicated and versatile. 

It communicates via the TCP/IP protocol. 

Older interfaces, such as communication via 

RS232 or traditional modem dial-up are also 

implemented. 

WHAT WILL SURPRISE YOU 

With this measurement system the recorded 

measurements are not just stored, they can 

also be processed, calculated and evaluated 

within the system and the results can be 

communicated globally. 

For this purpose, you can set up „virtual“ 

measurement points that link and average 

the „real“ sensor measurement points gainst 

each other and establish logical connections. 

All conceivable combinations and processing 

options are possible within the „calculated 

measurement points“. Within this averaging 

you can also program logical decision 

making criteria that really make linking the 

measurement points interesting. 

Before a message, alarm or internal action 

is triggered the measurement system can 

check logical connections with the corresponding 

queries (if/then/greater than/ 

lesser than/equals) based on your specifications. 

Alarm limits can be included in the 

evaluation and redundancy comparisons with 

parallel systems can be made. In this way a 

final decision is made as to which of the preset 

actions is used and to whom a message 

should be sent. 

In each case eight digital input and output 

channels are available for the final action 

or message, which can be used as alarm 

outputs or for control functions. The MCC 

also has 4 analogue outputs (power output 

4 - 20 mA or voltage output) with which you 

can output a result up to the fourth dimension 

or forward it to other evaluation and control 

systems for further processing. 

If you now personally make a picture of the 

possibilities from the functions that have 

been described, you‘ll soon realise that there 

is almost nothing that our MCC can‘t do for 

you. 

WHAT WILL ULTIMATELY CONVINCE YOU 

The measurement system can be extended 

considerably. This means that because of its 

reasonable entry price an MCC can even be 

used for small applications. It can also be 

used as the basis of a large recording system 

with up to 2,000 measurement points and 

master-slave applications. 

If you already own one or more GLÖTZL 

recording systems, such as MFA V6, MDL41, 

MFM71, etc., you can use an MCC to activate 

them and use them as multiplexers. 

This converts it into a communication centre 

and master measurement system of a whole 

network of existing and new measurement 

systems. 

The advantage of this is central querying of 

the measured data by the customer and central 

alarms when limit values are exceeded. 

USB READY 

With a USB flash drive you can import 

parameter changes into the measurement 

system. These parameters can be 

sent from a remote location by e-mail and 

be overwritten in the system and the 

measured data can be read out at the 

same time. Users or service technicians 

don‘t need any heavy PC equipment on 

site to update the system.


MEASUREMENT 

2,000 measurement channels, variable 

parametrizable with conversion formula 

Up to 20 measurement programmes 

Up to 60 Hz measurement frequency 

Up to 100,000 messages (fault, diagnostics 

and information messages) in the 

ring memory 

Up to 10,000,000 measurements in 

the ring memory 




Recording of changes in measurements 

(differentiation) 

Automatic compensations 

CALCULATION AND CONTROL 

Any desired formulas for calculated measurement 

points to link measurements 

Cascadable formulas for complex 

calculations 

50 programmable actions with if-then 

conditions 

Logical links for redundancy comparisons 


Limit value monitoring in 3 levels 

Up to 4 analogue outputs for connecting 

PCS or similar systems 

Up to 8 digital inputs to record external 

statuses 

Up to 8 digital outputs as alarms or for 

control tasks 

REGULATION AND COMMUNICATION 

These days, you should expect that a measurement 

system fulfils your requirements in 

terms of communication with various user 

groups: 

It must be possible to call measurements 

from several locations 

Different alarms must be sent to several 

different people 

Alarms must be sent via various means 

of communication (e-mail, fax, phone or 

SMS) 

Convenient data transfer and parameter 

programming via PC software 

COMMUNICATION OPTIONS 

(many of them simultaneously): 

LAN (standard) 

WLAN (optional) 

VPN (optional) 

Internet connection via DSL, 

GSM/GPRS, UMTS 

RS232/RS 485 

Modem dial-up via GSM, ISDN, 

analogue connection 

Data transfer to USB flash drive 

internal web server (live view of current 

measurements) 

System networking via (W)LAN, RS485, 

RS232 or Internet 

Automatic data transfer via e-mail or 

FTP (zipped) 

Encryption AES-128-bit (optional) 

Fig. An inexpensive, reducedvariant of theMCC, 

only for digital measurement

OPTIONAL ENHANCEMENTS 

MULTIPLEXER WITH STATIONARY SUPPLY 

MU 10 (10-channel multiplexer) 



MULTIPLEXER WITH VARIABLE SUPPLY 

MUX 10 (10-channel multiplexer) 



ANALOGUE DIGITAL Controller DC2/4 

COMMUNICATION INTERFACES 

Wireless modem bridge 

ANALOGUE modem 

ISDN modem 

GPRS modem 

GPRS router 

DSL router 

WLAN router 

External antenna 

Antenna masts 

VAISALA weather station 

Fig. VAISALA weather station 

BATTERY AND POWER SUPPLY 

Battery operation enhancement 

Solar support enhancement 

UPS enhancement 

(Uninterruptible power supply) 

(PROTECTIVE) HOUSING 

19“ rack housing (3HE) 

Indoor wall cabinet IP 55 

Outdoor protective housing IP 67 

Insulated weather protection casing 

Ram protection for operation in 

traffic situations 

Heating element (additional heating) 

Lightning protection elements 

Ex-proof housing for explosion protection 

Earth anchor 

Measuring office cabin 

MOUNTINGS 

Mast mount 

Pipe bracket mount 

Wall mounting 

and a lot more… 

Version 1/ B 056.00 MCC+MCC LT en 



Forlenweg 11 


Germany 

Phone +49 (0)721 51 66 - 0 

Fax +49 (0)721 51 66 - 30 


www.gloetzl.com



PCMFA – Measuring Device 

Type: PCMFA 

Art. No.: 56.20 

• Is supporting all digital Glötzl sensors 

• Flexible and versatilly usable measuring system 

• Virtual measuring device on PC or laptop (on request also pocket PC) 

• Graphic and numerical display of measured values 

• Multiplex configuration possibilities 

• Configuration and control by the approved Glötzl program GLA 7 

The PCMFA–measuring device is an independent program and is used as virtual measuring device on PC. 

By serial interface, the digital resp. digitalized sensors are interrogated by the Glötzl MFA protocol. 

Principally, the three following measuring assemblages are possible: 

1. Direct connection of digital Glötzl sensors 

e.g. in meas. container 

D1 - n : Digital Glötzl sensors, e.g.: 

- Hose leveling instrument 

- Chain inclinometer 

RS232 

GLV 1/999 Ax D1 D2 D3 n 

with 3. Connection "PCMFA" software of analog- and digital Glötzl sensors 

for max. 50 meas. points 

2. Connection of analog sensors 

RS485 Bus 

1 - max. 8 : Analog Glötzl sensors, e.g..: - Displacement transducers - Pressure- and load cells 

- Temperature sensors - a.s.o. 


1 2 3 4 5 6 7 8 

RS232 

GLC / W4 GLC / W4 

with "PCMFA" software 

3. Connection of analog- and digital Glötzl sensors 


Digital- and analog Glötzl sensors 

for max. 50 measuring points 

Digital Glötzl sensors 

RS232 

GLV 1/999 Ax 

RS485 bus 

GLC / W4a 

D1 

D2 

GLC / W4a 

n 

with "PCMFA" software 

Analog sensors 

1 2 3 4 1 2 3 4

Version: 23.07.2008 / IG / SP P056.20.00.00.00.001R00_engl.doc 

GLV 1/999 Ax: 

The sensor supply GLV 1/999 Ax is delivering the 

current supply for the digital sensors. 

Furthermore, it contains the interface conversion 

from RS232 (PC) to RS485 (bus) and also the 

reset control of the sensors being at the bus. 

Fig.: Sensor supply 

GLC 4/W4: 

The sensor supply GLC 4/W4 is used for connection of 

max. four analog sensors. The sensors are internally 

digitalized with a resolution of 16 bits and can then 

directly be measured via RS232 with PC (PCMFA). 

GLC 4/W4a: 

Like GLC 4/W4, but with RS485 interface. By this, it is 

possible – in connection with the GLV 1/999Ax – to fit 

several analog sensors to the RS485 data bus. 

Fig.: Sensor supply GLC 4/W4 

The PCMFA measuring device has – 

among others – the following 

features: 

Fig.: Cut-out of PCMFA (hose leveling measurement) 

• Measurement via serial interface 

with up to 19.200 baud (dependent 

on sensor) 

• 1 up to 999 measuring channels 

• Free configuration of measuring 

channels via the GLA 7 

• Computation of measured values 

by freely definable formula 

• Support of all conceivable units 

• Definition of calculated measuring 

channels 

• Smoothing operator: „Sliding 

average value by n measured 

values “ 

• In case of transfer errors, the 

inquiry for measured values can 

be repeated up to three times 

• Setting of alarm limits 

• Free configuration of bar display 

and sequence 

• Optical display of short-dated 

alarm exceeds 

Article Nos: 

Sensor supply GLV 1/999Ax, for connection of digital sensors (bus-capable), max. 50 measuring points 

Sensor supply GLC 4/W4, for connection of 4 analog sensors, max. 2 pcs. = 8 measuring points 

Sensor supply GLC 4/W4a, for connection of 4 analog sensors (bus-capable), max. 50 measuring points 

Software „PCMFA“ with graphic surface and parameterizing of the GLA 

Software „MFAlog“ as low-cost option 

Subjekt to technical alternations 




GKSPro > 

Tissy 4C (only in german) > 

Evaluation Software GLA > 

Evaluation Program GLNP > 





GKSPro > 








GKSPro > 








GKSPro > 








GKSPro > 








Übersicht 

 

 

 

Fachübergreifende Integration von Daten aus den Bereichen Geodäsie, Geotechnik und Geologie im Kontext mit Informationen zum 

Bauwerk und zum Bauablauf 

Auswertung, Visualisierung, Dokumentation und Archivierung der Daten; benutzer- und fachübergreifende Bearbeitung 

Bereitstellung von Daten zur Weiterverarbeitung in anderen Anwendungen 

Datenspeicherung/ Datenstruktur 

Relationale Datenbank; einheitliches logisches Schema für alle Daten 

Systematische Speicherung von Daten aus verschiedenen Quellen (Tachymeter, Nivellier, Inklinometer, Schlauchwaage, Extensometer 

u.a.) unter Berücksichtigung gerätespezifischer Kalibrierdaten und Kenngrößen 

Integration von Fotos, Videos, gescannten Dokumenten, CAD-Plänen, Office-Dokumenten etc. 

Sicherstellung von Verfügbarkeit und Transparenz der Daten 

Mehrbenutzerfähigkeit; benutzerspezifische Vergabe von Zugriffsrechten und Konfiguration der Bedienoberfläche (Menüs) 

Flexible hierarchische Datenstruktur mit uneingeschränkter Tiefe entsprechend den Projektanforderungen 

Datenquellen 

Manuelle Dateneingabe 

Offene Schnittstelle für das Lesen von Daten aus automatischen Messanlagen 

Offene Schnittstelle für den Import aus Standard- und Fremdformaten (Excel, Textformate etc.) 

SQL-Schnittstelle zur Integration von Daten aus anderen Datenbanken 

Schnittstelle für die Integration von tunnelspezifischen Geometriedaten (Trassen, Gradienten, Profile) 

Messwertattribute 

Zuordnung von Attributen zu Messwerten (z.B. Qualität, Vertrauenswürdigkeit) 

Zuordnung von Messwerten zu physikalischen Kategorien (z.B. Weg, Temperatur, Druck) und automatische Umrechnung zwischen den 

Einheiten einer Kategorie 

Kennzeichnung und Verarbeitung von Bezugswerten (Nullmessungen) und Wertsprüngen (Offsets) 

Datenauswertung 

Berechnete Messstellen: Definition von Messstellen durch Berechnungsvorschriften, denen andere Messstellen zugrunde liegen; schnelle 

und redundanzfreie Ermittlung der Werte zur Laufzeit; Einfache Formulierung von Differenz-, Anstiegs- und Nullwertkriterien für 

Datenreihen; automatische Interpolation bei Bedarf; Rechnen mit globalen Konstanten; Statistik-Funktionen; Analyse von Korrelationen 

und Durchführung von Kompensationen; Curve Fitting; Fourier-Analyse 

Möglichkeit der Definition zeitlicher Gültigkeitsgrenzen für Messwerte 

freie Klasseneinteilung von Messwerten (z.B. „Normal“, „Warnung“, „Alarm“) und Verknüpfung von klassifizierten Messstellen durch 

WENN-DANN-Beziehungen 

Schnittstelle zur Integration projektspezifischer Algorithmen 

Standardverfahren für die Auswertung von Daten aus Inklinometermessungen, Messungen mit hydrostatischen Sonden, 

Schlauchwaagenmessungen, Extensometermessungen, Drucksondierungen u.a. Messverfahren 

 

 

 

 

Visualisierung von Messdaten und assoziierten Informationen in Diagrammen und Tabellen 

Diagramme mit Zoomfunktion, Datenpunktinformation, Zuordnung von Attributen zu Datenpunkten, Behandlung/ Kennzeichnung 

undefinierter Datenpunkte, Einteilung von Zeitachsen in Perioden (z.B. Jahr, Monat, Tag, …) in mehreren Ebenen, Ergänzung durch 

erläuternde Grafiken und Texte, Einfügen von Grenzwertlinien 

Isoliniendarstellungen auf Basis der im System gespeicherten Koordinaten der Messstellen: für ausgewählte Zeitpunkte/ für 

Veränderungen zwischen ausgewählten Zeitpunkten 

Dokumentations- und Berichtsfunktionen 

Systematische Integration geodätischer Auswerteroutinen, einschließlich 

Erfassung/ Verwaltung der Messgeräte und Sensoren (Kalibrierdaten, Kenngrößen etc.) 

Import der Messwerte über standardisierte Schnittstellen; Verwaltung in der Datenbank 

Integrierte Netzausgleichungssoftware 

Erforderliche Transformationen, Visualisierung/ Dokumentation 

Zeitbezogene dreidimensionale Modellierung des Bauvorhabens mit den Elementen 

Tunnel, Tunnelabschnitte, Trassen, Profile, Gelände, Gebäude 

Messquerschnitte, Messstellen (geodätisch u.a.) 

Beliebige grafische Informationen mit räumlicher Zuordnung 

Visualisierung und Navigation 2D/3D 

2D: Basis Lageplan (beliebiger CAD-Plan); Darstellung von Tunnelachsen, Gleisachsen, Querschnitten, Messstellen, Darstellung des 

Baufortschritts durch TISSY im Plan 

Direkter Zugriff auf Daten (z.B. Messdaten in Form von Diagrammen und Tabellen) über aktive Navigationselemente im Plan; dabei 

beliebige Datenverknüpfung (z.B. Oberflächennivellements mit Konvergenzmessungen im Tunnel) 

3D: Wie 2D, jedoch auf Basis des 3D-Tunnelmodells; freie Bewegung im virtuellen Raum mit Pfeiltasten/ Maus 

Export von Daten und Auswertungen 

Exportschnittstelle zur Übergabe von Daten und Auswertungsergebnissen an andere Anwendungen 

Zusammenführung von Tabellen und Diagrammen in komplexen Berichten auf der Basis von Microsoft Word für Windows/ Microsoft 

Excel; wahlweise automatische Berichtsaktualisierung für neue Berichtszeiträume 

GGB 

Gesellschaft für Geomechanik 

und Baumeßtechnik mbH 

Leipziger Str. 14 · 04579 Espenhain 

Tel (034206) 64 60 · Fax (034206) 6 46 78 · www.ggb.de 

In Zusammenarbeit mit dem 

Institut für Geodäsie und Photogrammetrie 

der TU Braunschweig, Univ.-Prof. Dr.-Ing. W. Niemeier 

Gaußstr. 22, 38106 Braunschweig, Tel. (0531) 3 91-7473 

GLÖTZL 

Gesellschaft für 

Baumeßtechnik mbH 

Forlenweg 11 · 76287 Rheinstetten 

Tel (0721) 51660 · Fax (0721) 516630 · www.gloetzl.com 

Gefördert im Rahmen der Technologieförderung mit Mitteln 

des Europäischen Fonds für regionale Entwicklung (EFRE) 

2000 - 2006 und mit Mitteln des Freistaates Sachsen 

Freistaat Sachsen 

Staatsministerium für Wirtschaft und Arbeit 

Informationen... 

systematisch erfassen und speichern 

fachübergreifend zusammenführen und bearbeiten 

dreidimensional modellieren 

recherchieren und bereitstellen 

auswerten, visualisieren und dokumentieren 

TSSY I 

Tunnelinformationssystem 

®

TISSY::Integration1 

Das Tunnelinformationssystem integriert Daten eines Tunnelbauvorhabens in 

einer fachübergreifenden Datenbank. Geotechnische, geodätische und 

geologische Daten werden im Kontext mit Informationen zum Bauwerk sowie 

zum Bauablauf in einem einheitlichen Datenmodell gespeichert. Dokumente 

aus den Bereichen Textverarbeitung, Tabellenkalkulation, Grafik und CAD, 

Fotos, Videos und weitere Formate können nahtlos integriert werden. 

TISSY::3D 

Die Geometrie des Tunnelbauvorhabens (Trassen, Profile, Messquerschnitte etc.) kann im Tunnelinformationssystem 

dreidimensional erfasst und durch 3D-Gelände- und Gebäudemodelle ergänzt werden. Als Anwender 

haben Sie die Möglichkeit, sich über Tastatur und/oder Maus frei im virtuellen Raum zu bewegen. Aktive 3D- 

Elemente bieten über Kontextmenüs einen direkten Zugang zu Daten, Diagrammen etc. Alternativ wird eine 

zweidimensionale Visualisierung und Navigation auf Basis von Lageplänen unterstützt. 

TISSY::Auswertung 

Das Tunnelinformationssystem bietet sowohl die Funktionen für die operative 

Arbeit mit den Daten, ihre Sichtung, Bewertung und Visualisierung, als auch 

die Basis für den Informationsaustausch zwischen den am Projekt beteiligten 

Fachleuten und Entscheidungsträgern und ihre Integration in die Steuerung 

des Projektes. Einheitliche Bedienerschnittstellen sorgen für Einfachheit und 

Transparenz. Leistungsfähige Berechnungs-, Auswertungs-, Visualisierungs-, 

Berichts- sowie Im- und Exportfunktionen stehen zur Verfügung. Aktuelle 

Auswertungen können schnell und gezielt bereitgestellt werden. Neue, 

übergreifende Sichtweisen werden möglich. 

TISSY::Geodäsie 

Das Tunnelinformationssystem verfügt über 

Standardroutinen zur Berechnung, Auswertung 

und Visualisierung geodätischer Messdaten aus 

unterschiedlichen Messsystemen. Die Verwaltung 

der Sensoren mit Kalibrierdaten und allgemeinen 

Kenngrößen, eine leistungsfähige Koordinatenverwaltung 

und eine Netzausgleichungssoftware 

sind integriert. Die strukturelle und räumliche 

Verknüpfung der geodätischen Daten mit geotechnischen, 

geologischen und sonstigen 

Informationen ist über Auswertungs- und 

Visualisierungstools implementiert. 

Tachymeter 

Inklinometer 

3D-Laserscanner 

... 

geodätische und 

geotechnische Sensoren 

Messdatenverwaltung 

Messdatenaufbereitung 

Sachdatenverwaltung 

Dokumentenverwaltung 

Analyse 

Berechnungen 

regelbasierte Methoden 

Visualisierung 

Zeitreihen 

Quer- und Längsprofile 

Karten 

3D-Modell 

Alarm- und Meldesystem 

Netzausgleichung 

Konvergenzmessung 

... 

Plugins zur Auswertung 

und Analyse 

TISSY::Erweiterbarkeit 

Für projektspezifische Erweiterungen stehen im Tunnelinformationssystem 

Benutzer- und Entwicklerschnittstellen zur Verfügung. Projektgebundene 

Datenstrukturen, Berechnungsverfahren, Strukturelemente und Oberflächenpräsentationen 

- z.B. Übersichtspläne, technische Zeichnungen, 

Fotos- können eingebunden werden. Auf dieser Grundlage entstehen vorhabenspezifische 

Auswertungs- und Dokumentationsplattformen, die den 

Projektanforderungen dynamisch angepasst werden können. 

TISSY::Fakten und Regeln 

Im Rahmen der Gewinnung von 

Zustandsaussagen aus komplexen 

Datensituationen können 

wissensbasierte Methoden eingesetzt 

werden. Das Tunnelinformationssystem 

unterstützt die Formulierung 

hierarchischer Systeme von WENN- 

DANN-Regeln, mit denen Fachwissen 

abgebildet und in Auswertungs- und 

Interpretationsprozesse integriert 

werden kann. 

TISSY::Integration2 

Das Tunnelinformationssystem unterstützt die Integration in bestehende 

Daten- und Auswertungsumgebungen. Im- und Exportschnittstellen 

bilden die Basis für die Einbeziehung vorhandener Datenbestände sowie 

die Anbindung bewährter Auswertungs- und Dokumentationsmittel bis 

hin zu Spezialprogrammen verschiedener Fachdisziplinen.

Version: 05.05.2008 / MR / IG / P190.01.00.00.00.001R02_engl.doc 


EVALUATION SOFTWARE GLA Type: GLA 7 

Art. No.: 190.01 

GLA software – a universal and flexible software tool for recording, filing and evaluation of 

measuring data in the field of constructional measurement technique 

Meas. stations 

Tables 

SQL 

Meas. devices 

Diagrams 

Data bank 

Sensors .... 

Recording Filing Evaluation 

These extensive jobs are distributed on two independent software modules: 

• GLA software 

• The GLA software contains all administrative functions. This is firstly the organization 

of data keeping and secondly the communication with various measuring stations 

as well as their programming and control. Additionally, the measuring data can 

be displayed and printed out either in tabular or also in graphical form by means of 

evaluations. 

• Additional software GKSPro 

• The additional software GKSPro is enabling also more complex evaluations of data 

which have been filed by the GLA software. With the assistance of these evaluations 

it is possible to produce tabular and graphical reports which can also be adapted to 

client-specific requirements, if necessary. If you need more detailed information, 

please see our separate prospectus. 

Functions of the GLA software 

Recording: Communication with measuring stations 

• Communication with any Glötzl 

measuring stations by a flexible driver 

concept (also by modem, ISDN, LAN) 

• Input of measured values and error 

messages from the measuring stations 

(also automatically timecontrolled) 

• Programming/control of measuring 

stations: Safeguarding, re-backup and 

processing of parameters of measuring 

stations possible



• Explorer-similar 

project outline 

• Drag & drop support 

• Hierarchical display 

of projects, measuring 

stations, meas. 

points a. s. o. is 

enabling a quick 

outline regarding 

existing data. 

• Structuring contains 

the following elements: 

Project, 

measuring station, 

meas. points, protocol, evaluations, export copies, parameter backups, raw data 

backups a. s. o. 

• User-defined two-steps file hierarchy possible for the structuring elements "measuring 

points", "evaluations" and "export copies" 

• Easy operation by generally usual functions, as e.g. copying in intermediate file, infixing 

from intermediate file, erasure, renaming 

• Dual visibility enables the consideration of measuring points of a project from technical 

or evaluation-specific view. 

• Windows window 

technique enables 

a simultaneous 

and comparative 

display 

of different data, 

as e.g. measuring 

data, error messages 

a. s. o. 

• Additional parallel 

filing of measured 

values and error 

messages from 

Glötzl measuring 

stations in the 

form of raw data 

backups outside 

of the data bank 

• Integrated administration 

of the 

units 

• Graphical symbols for identification of measuring point types

Evaluation 

• Evaluations in tabular form 


• Graphical evaluations 

• Amongst other things, the following evaluation types are available: Time value, position 

value, value of meas. value and value value 

• Production of calculated measuring points by processing of measured values of 

other measuring points by any formula with any interlacing depth and automatic 

actualization 

• Determination of up to three computation values which are knocking the original 

measured value into the required shape by means of any mathematical formula. 

While doing this, as well measuring value jumps as also several reference values 

are considered. 

• Flexible formula system for print-out of data


Further functions 

• Access-DLL for the access of 

measured values of data 

bank from foreign programs 

(inclusive support of calculated 

measuring points!) 

• Export by intermediate file or 

ASCII file for infixing of tables 

and diagrams into other programs, 

e.g. Excel TM 

• Data backup 

• Free definable, storagecapable 

export copies in order 

to automate export tasks 

which reoccur again and 

again 

Technology 

• 32 bit Windows program 

• Local or central data keeping: Efficient SQL data bank Interbase 

• Operational as single space system (e.g. for notebook), and as multiple user system 

in the network with central data keeping on a Windows server 

• Context-sensitive online assistance 

• Manual also available as electronic model as PDF data file 

• Flexible driver concept for integration of any measuring stations by specific driver 

• Multilingual (German, English, French, Spanish) 

System prerequisites 

• At least Pentium 4 or similarly quick processor 

• CD- or DVD drive disk (for the installation of CD) 

• Screen with at least 1024 x 768 point resolution (or comparable values) 

• 512 MB central memory 

• 200 MB hard disk memory for program, additional memory capacity for project data 

banks 

• Windows XP, Windows Vista 32 bit 

• Colour printer recommended 






GLNP 4 – EVALUATION PROGRAM 

Type: GLNP 

Art. No.: 190.02 

GLNP 4 software – an all-purpose and flexible software tool for acquisition, filing and evaluation 

of inclination measuring data for projects of constructional measurement technique 

Probe 

Tables 

SQL 

Data bank 

Diagrams 

Export 

(e. g. Excel) 

VMG-multimeter 

Recording Filing Evaluation 

Acquisition 

• Multiplex support of probes with the sensors A,B,H and HII (inclination sensors); T 

(temperature); X and Y (XY-precursor probe); L (Trivec, sliding deformeter); E (length 

measuring probe, BES-probe); S (HPG); Kal4Pkt (4-point calibre probe), and T4Pkt (4- 

point temperature probe). 

• Measurements 

can as well be 

done for horizontal- 

as for vertical 

borings. 

• Measurements 

can be managed 

with only one 

measuring run till 

up to max. four 

measuring runs 

(dependent on 

the prevailing 

sensor). Five different 

turnover 

types are available, 

and furthermore 

numerous 

adjustable 

measuring 

sequences.

Stand: 05.05.2008 / MR / IG / P190.02.00.00.00.001R05_engl.doc 

• Inclination measurements can be carried out and recorded in several ways: 

• By the GLM-software (extra program module for GLNP) as online measurement 

with a notebook with various probes: Digital probes (AB-probe, H-probe, 

double-H-probe, HPG-probe and more), borehole module probes with the 

following modules: Basis, XY-precursor, compass, sliding deformeter, Trivec, 

length measuring probe BES, 4-point-caliber, 4-point-temperature, video and 

more. 

• Via the GLV-software (extra program module for GLNP), which directly indicates 

the video pictures - parallel to the measurement with the GLM-software 

– and which also can digitally store the pictures. For doing this, a borehole 

module probe with video module is required. 

• By a measuring device (VMG 11, VMG 14 NMA09) without a computer in-situ 

and a following direct input of data into the GLNP-program 

• Input of manual values possible 

• Automatic raw data backup in XML-format during downloading of measuring devices 

• Automatic measuring level selection at input of measuring devices on account of adjustable 

name conventions for measuring project names (configurable measuring 

level prefixes) 


• Quick training by habitual and intuitive operation, „drag-and-drop“ support 

• Easy operating by generally conventional functions, as e.g. erasure or copying and 

infix via intermediate file, usual multiple selection of single elements incl. multiple 

functions 

• Window technique, easy comparative possibilities of tables and diagrams 

• For each project, a single data bank file is created with the ending .gnp 

• Project explorer with hierarchical display of the following elements: Diagram copies, 

table copies, measuring levels and measuring series

Stand: 05.05.2008 / MR / IG / P190.02.00.00.00.001R05_engl.doc 

• XML-export of measuring series and/or measuring levels incl. measured values and 

parameters in one file for an easy data exchange with foreign programs 

• XML-import of measuring series and/or measuring levels of data files, which have been 

created by the GLNP with XML-export, or with the GLM-software at measurement, or 

which may originally belong to foreign programs 

Evaluation 

• Quick, user-friendly and representative display of data by a large number of table- and 

diagram copies, independent on measuring series 

• Curve representation (colours, line styles, markings, marking size, numbering), globally 

and individually definable for each evaluation 

• Maximal 10 curves for each diagram can be represented; automatic preparation of a 

legend with further additional information 

• By mouse, zoomable diagrams for a better analysis of details 

• Automatic- or manual axes division, which especially take account of the special conditions 

of inclination measurements (e.g. consideration of symmetries, squared diagrams) 

• Easy preparation 

of copies – dependent 

on measuring 

series or 

measuring levels – 

from standard copies 

• Clearly structured 

representation and 

good comparative 

possibilities of 

several measuring 

series in one diagram 

• The following tabular- 

and graphical 

evaluation types 

are available: 

Meas. values, error-/ 

mean values, 

borehole inclination, 

deformation, differential deformation, Gauß-Krüger coordinates 

• Special evaluation- and measuring methods, as e.g. measurements with and without 

turnover, diaphragm wall measurement, compass distortion, fix distortion 

• Free selection of a reference point and its consideration for evaluation 

• Export of tables by intermediate file, ASCII data files or direct export into 

Excel TM program 

• PDF-export and EMF-export (Enhanced Windows Metafile) of printer outputs 

• Freely designed own company letterhead with logo for printer outputs can be defined.


Technology 

• 32-bit Windows program in new .net technique, unicode support 

• The program is modularly constructed and can stepwise be upgraded by a clearing 

key. For example, at the beginning only with A-, B- and H-sensor, and later on upgrade 

for sensor S (HPG measurement) via a clearing key without new installation 

• Secured data keeping: Efficient SQL data bank Interbase of Borland 

• Operational as single space system (e. g. for notebook), and as multiple user system 

in the network with central data keeping on a Windows server. The network version 

requires a corresponding clearing key and also a special Interbase server licence on 

server. 

• Multilingual program (German, French, English, Spanish, Czech, Russian), language 

can also be shifted by menu point. 

• Context-sensitive online assistance and manual (PDF file) in several languages (German, 

French, English, Spanish, Russian) 

• Multilingual, user-friendly installation 

System prerequisites 

• At least Pentium 4 or similarly quick processor 

• CD- or DVD drive disk (for the installation of CD) 

• Screen with at least 1024 x 768 point resolution (or comparable values) 

• 512 MB central memory 

• 200 MB hard disk memory for program, additional memory capacity for project data 

banks 

• Windows XP, Windows Vista 32 bit 

• Colour printer recommended 




ELECTRIC 

Field Measuring Device FMG > 

Readout Unit VMG14.2 > 

Readout Unit KMG > 

Line, Measurement and Storage Device NMA 9 > 

Handheld Measuring Device HMG > 

GLM Mobile Handheld 

with GLM Software > 

FIBER OPTICS 

Fibre Bragg Readout Unit AWE > 

PNEUMATIC 

Air Quantity Regulator T1 > 

Air Quantity Regulator T1D > 

Hand Air Quantity Regulator M5 > 

Air Quantity Regulator M1 19 > 

Air Quantity Regulator M1 D19 > 

HYDRAULIC 

Hand Pump for Oil Operation M1 and M2 > 

Electric Motor Pump TM1 > 

Electric Motor Pump with Additional Unit M19 > 

Stabilizer, Hydraulic KM > 

MECHANIC 

Mechanical Dial Gauge GEM > 

Digital Measuring Device for 

Plastic Rod Extensometers GED > 

VIBRATING WIRE 

Measuring Device SMC > 

Readout Unit VMG14.2 > 







FIELD MEASURING DEVICE 

Type: FMG 01-2 

Art. No.: 74.01.11. 

The field measuring device is used for nearly all market-conventional sensor systems for indication of the 

measured values. The indication is done 4½-digit reversible for 2 measuring channels. Separate exchangeable 

measuring modules for each masuring channel are available for temperature-, pressure-, load- and 

displacement measurements. For indication, either the raw value of the sensor (e.g. mV or 4 - 20 mA) or the 

real value (mm, bar, kN, °C) can be selected. By the pluggable module construction, the instrument can be 

modified for special measuring requirements at any time. Furthermore, the actual storage battery voltage can 

be displayed. The portable instrument has an integrated charger with NC-accumulators. 

6 

1 

2 

Front panel and keyboard layout 

(1) Probe socket 

(2) Mains connection cable 

(3) By pressing this key, the instrument is switched off. The display and also the prevailing 

indication lamps for “test”, “channel 1” and “channel 2” are going out. 

By pressing this key, the instrument is switched on for measurement of the storage 

battery voltage of the installed NC-accus. This is indicated in display. For control 

purposes, a red lamp is lighting at the top on the right of the keyboard field. 

(4) By pressing this key, the instrument is switched on for measurement of the measuring 

channel 1. For control purposes, a green lamp is lighting at the top on the right of the 

keyboard field. 

By pressing this key, the instrument is switched on for measurement of the measuring 

channel 2. For control purposes, a green lamp is lighting at the top on the right of the 

keyboard field. 

(5) Charge In this field, there is a red lamp for indication of the charging function. 

Lamp off: No mains or 12 V are existing 

Lamp on: Charging procedure is running 

Lamp flashes: Charging procedure is terminated – conservation charge 

(6) LC-display 4 ½-digit indication 

3 

4 

5


Functions of LC-display 

1) The measured values are displayed with a 

max. resolution of 4½-digit. The allocation of 

the measured values can be taken from the 

adhesive labels. 

2) Low-bat-indication is realized by a vertical bar 

at the left outer side of the display. Low-bat is 

signalized from 5.9 V on. In this case, the 

measurement should be terminated within the 

next 10 minutes. In spite of the low-batindication, 

the measured values are valid up to 

approx. 5.7 V. 

3) An overflow of the measured values is shown 

by two vertical bars at the left outer side of the 

display.The figures are all indicating average 

values. 

Charger and accus 

The installed charger is a delta-U sensitive 

charging processor with charging condition 

control. The charging condition is controlled by a 

charging processor thus avoiding an overcharge. 

Therefore the accus are charged by 100 % after 

the charger is swiched off. Dependent on 

requirement, the accus consist of NiCd as 

standard or of NiMH according to availability. The 

shape of the accus has been selected with 5 baby 

cells as in case of a failure of the charging unit 

simple baby cells can be inserted if a continuous 

measurement is urgently required. In case of nonuse, 

the unit should be completely charged before 

storage and then be recharged each six up to 

eight weeks. When charging procedure is done by 

the mains socket, the charging control diode is 

lighting. After termination of the charging 

procedure, this lamp is flushing and is signalizing 

at the same time the conservation charging mode. 

The charging time of the accus is dependent on 

their discharge condition. In case of completely 

discharged accus (charging voltage ≤ 5.8 V) the 

charging time is approx. 6 hours. 

The average operating time is approx. 14 hours 

with completely charged accus. 

Temporal course of discharge at 20 °C 

Indication: Position „test“ 

The instrument should not be switched on during 

the charging procedure. The voltage drop by 

switching on corresponds to the switch-off 

condition of the charging processor after complete 

charge. So, the charging processor is responding 

to the switching-on by a cut off of the charging 

procedure. 

However, a long-term operation of the readout unit 

is possible with network buffering. 

If the charger is in the operating mode 

„conservation charge“ (J = 25 mA), a new 

charging procedure is automatically started when 

falling below of approx. 5.9 V. 


− Mains: 230 V; 50 Hz; 0.038 A 

− Accu: Approx. 6.5 V/120 mA 

− Accu type: 5 x NC-accu; type C 

− Battery type: 5 x baby cells; type C (Please 

remove the locking device in the charger.) 

Operating time: Approx. 14 hours for 

completely charged accus 

− Charging time: Approx. 6 hours for empty 

accus 

− Indication: 4 ½-digit LCD-display 

− Weight: 2.2 kgs without mains line 

− Dimensions: 

W = 190 mm, H =120 mm, D = 140 mm 

− Housing: Aluminium profile protection type 

IP67 (splash-proof) 

List of available measuring modules 

Module No. Phys. size Sensor Supply Measured value Display 

010 Temperature AD590 12 V 1 µA/K -50.0 up to +150.0 °C 

011 Temperature PT100 1 mA 0.35 Ω/°C -50.0 up to +180.0 °C 

020 Pressure piezoresist. 4 mA 1000 mV F.S. 

0.0 –1000.0 mV 

or real value 

021 Pressure Thin film 10 V 100 mV F.S. 

0.0 – 100.0 mV 

or real value 

022 Pressure DMS 10 V 10...40 mV F.S. 

0.00 – 40.00 mV 

or real value 

030 div. 4 - 20 mA 12 V 4 - 20 mA 

4.000 – 20.000 mA 

or real value 

040 Displacement GWW 24 V ± 2 V 

± 2.0000 V 

or real value 

041 Displacement GWR ± 2 V ± 2 V ± 2.0000 V 





Version: 09.04.2009/SP/IG / P074.12.11.00.00.001R03_engl.doc 


READOUT UNIT 

Type: VMG 14.2 

Art. No.: 74.12.11 

The multimeter is used for the measurement of nearly all single sensors available on the market, but can 

furthermore also be applied for line-type measuring procedures (e.g. inclinometers). The measuring results 

are optionally displayed and stored, either as electric values or as real physical sizes with unit. 

It has an external charger for the rechargeable, maintenance-free Li-Ion accumulators, and thus can be operated 

network-independently, and be recharged by the 230V mains. 

The unit is programmable by keyboard or by USB interface. 

All measured data are permanently stored and can be downloaded by the USB interface. 

For the line-type measuring procedures, variable operational programs are available which can easily be 

operated by the user, with which measuring step length, total measuring length and type of measurement can 

be defined. 

Additionally, the unit can be used as temporary collecting system (data logger) for the measured values. A 

time program is automatically recording the data and is storing them into an allocated file. 

Front panel and keyboard allocation 

(1) Display 

Image diagonal 4", resolution 240x160 pixel, monochrom (standard display black on white) 

transflective F-STN-type, LED background illumination, dereflected inspection windows 

automatic luminosity and contrast control, manual adjustment possible 

(2) Keyboard 

Foil keyboard with raised key areas, 18 input keys, one key each for switch-on and switch-off 

(3) Charging control display 

Charging end = green, charging = yellow 

Connectable single sensors: 

− Piezoresistive transducers for: Pressures: 0–2; 5; 10; 20; 50; 100; 200; 400; 600 bars 

− Load cells and anchor load cells: 0–250; 500; 1000; 1400; 2000–20000 kN 

− All sensors with output signal 4–20 mA and 0–20 mA 

− Temperature (AD590 / PT100) 

− Displacement transducer ± 20 mm, 0–50/100/200/400 mm 

− Vibrating wire transducers (VW and VM) 

− Resistive strain gauges (DMS)


Power supply 

− External direct voltage 18–24 V DC , e.g. by delivered 

external 230V AC power pack 

− Internal Li-Ion accumulator 

Dimensions, weight, temperature 

Weight: 2.6 kgs without power pack 

Dimens.: W=190 mm, h=120 mm, d=210 mm 

Temperature range: -5...+45°C (recommended) 

External connections 

− Sensors 

− Computer (PC) 

− Energy supply 

Line measurement procedure 

− Inclinometer meas. probes analog, digital 

− Hydrostatic settlement measuring device 

− Sliding micrometer 

− Free programmable programs 

Options 

Vibrating wire measuring board (SMM) 

Meas. range: 600 up to 3500 Hz 

Measur. deviation: < 0.01 % (transducer-dependent) 

Resolution: 10 -5 at 1 kHz 

Actuation: Impulse 

Sensor supply 

Two channels, individually to be switched on or off, 

galvanically separated 

− Bipolar voltage controlled ±2.5; ±6.0; ±12.0 V 

and non-controlled ±15.0 V on CH0 

− Unipolar voltage controlled +5; +12; +20 V 

and non-controlled +24 V on CH1 

− Current controlled 0.2 or 1.0 mA on CH0 and CH1 

Analog inputs 

2 parallel channels on ADC input, self-calibrating, digitalization 

resolution 16 bit, with input protecting circuit, 

channels switchable between current (RE ≈ 61Ω) and 

voltage (RE ≈ 820kΩ) 

Current meas. ranges: 0.5; 1.0; 2.0; 5.0; 10.0; 25.0 mA 

Voltage meas. ranges: 0.1; 0.2; 0.5; 1.0; 2.0; 5.0 V 

Data storage capacity 

− 59999 single measured values 

− 156 data 

− 449 sensors 

− 299 types 

Housing 

Stable aluminium profile with carrier handle, protection 

type IP65 (water jet- and dust-proof); 

As additional accessories, an imitation leather bag 

is available. 

Charger 

By the charging socket, 18...24V DC are fed. An integrated 

control switch, the charging controller, is 

switching automatically between the two operating 

types, battery- or mains operation. At the same 

time, it is recognizing the actual status of the accumulators, 

is controlling the temperature and also the 

charging procedure in such a way that it is working 

best possible. A protecting circuit which is fixed 

integrated in the accumulator, is securing the necessary 

operational safety. 

Accumulator and operational standby 

The device is equipped with a li-ion accumulator, 

which is offering – on account of its low self discharge 

rate – a high availability of the unit, also in 

case of a longer non-use time. 

The actual charging condition can be inquired in the 

menu ”instrument adjustment“ under „battery 

status“ It has to be controlled each 3 months. In 

case of a too low voltage, an automatic switch-off is 

done on account of deep discharge. A charging 

procedure takes approx. 6 hours. 

Operational time: >8h for NMGD (cell types A and 

B) in standard operation 

Software options 

Evaluation software – special programs 

− GLNP evaluation program for all line measuring 

procedures 

− GLA evaluation program for object support 

service with file maintenance, parameter protection,plot 

and data exchange 







READOUT UNIT 

Type: KMG 06-1 

Art. No.: 74.30 

The portable, digital readout unit is equipped with a 4 ½-digit digital display and rechargeable, 

maintenance-free, robust batteries with sintered electrode and charger. 

The measuring instrument is calibrated for the DMS cells with a sensitivity of 2.5 mV/V. The supply 

voltage for the cell is 4 V. The cell is connected in six-conductor circuit. By means of the sense 

tubings, the voltage losses by tubing lengths up to approx. 1000 m are regulated. The voltage 

change at the cell is 0.1% for tubing lengths of 0-1000 m. 

Setting to work: 

By pressing a function key, the instrument is 

switched on. In case of operation without cells, 

the instrument is automatically switched off after 

approx. 1 minute. 

Keys: 

Off Instrument is switched off. 

Test Herewith battery voltage is indicated. 

Display > 8.00 Batteries have 100 % 

capacity 

Display < 7.00 Batteries are exhausted. 

500: Measuring range 500.0 kN 

1000: Measuring range 1000 kN 




Digital displays: 

4 ½-digit digital display with + and – display of the 

measured value. Display range: ± 19999 

Minus 

display 

Slowly flashing: Overflow, exceeding of 


Rapidly flashing Battery voltage 

< 6.8 V 

The max. cell voltage of 10 mV (2.5 mV/V * 4 V = 10 mV) is internally amplified to 1 V and indicated 

according to the measuring range selection. 

Measuring range Max. cell value Max. display Pin allocation 

(kN) (digit) 1 + Supply voltage (+2 V) 

500 10.00 mV 500.0 2 + Sense 

1000 10.00 mV 1000 3 + Measured value 

2000 10.00 mV 2000 4 - Measured value 

3000 10.00 mV 3000 5 - Sense 

6 - Supply voltage (-2 V) 

- Casing (screen) 

Connections: 

- Socket for connection cable cell – readout unit 

- Socket for loading of batteries with 230 V, 50 Hz and lighted display mains for load indication 

- Socket for loading by means of car battery 12 V and lighted display Bat for load indication 




NMA 9 

Line, measurement and storage device 

Art. No. 074.20 

The NMA 9 is used to log line measurement programmes, such as those used in an NMG inclinometer or an HPG hydrostatic 

settlement meter. With this device you can log analogue and digital sensors from GLÖTZL without the need of a connection to 

the power grid. The main benefits of this device are its easy handling and outstanding robustness for everyday use on the building 

site and the fact that it is so simple and easy to operate. The NMA 9 has a measuring point management system that clearly 

identifies individual measurements. When measurements have been completed, the memory is read out via our GLNP PC software 

and the measured values are displayed and evaluated graphically. 

Functions 

The following measuring devices can be 

connected: 

- NMG analogue probe vertical 

- NMGH analogue probe, horizontal 

- NMG D digital probe, vertical 

- NMGH D digital probe, horizontal with temp. 

- HPG (hydrostatic settlement meter) 

Supported measurement sequences: 

- 1-0 1-0 

- 0-1 0-1 

- 0-1 1-0 

- 1-0 0-1 

- 1-0 

- 0-1 

- 0-11-0 0-11-0 SNCF* 

Supported probe lengths: 

0.5 m, 1.0 m, 2.0 m, 3.0 m, 4.0 m, 5.0 m, 10.0 m 

Depth: 1 - maximum 999.5 m 

Accessories 

Leather bag 

Transfer cable NMA-PC 

Battery charging cable 12 V with car plug 

Grid charging cable 

*(only for inclinometer) 


Data transfer: 

Language: 

Data memory: 

AD conversion: 

Display: 


Dimensions (mm) 

Weight: 

Power supply: 

Power consumption at 230V/50Hz: 

Resolution NMG / NMGD: 

Resolution HPG: 


Batteries: 

Battery life: 

Charging time: 

Extras 

Battery display 

Display of difference error 

Internal clock and calendar 

Direct measurement for all probe/HPG types 

Display of remaining memory 

9600 or 38400 baud 

German, French, English 

for 100 measurement series 

16 bits 

2x20 characters illuminated 

IP65 (spray water) 

175x115x140 (LxWxH) 

2.2 kg 

5 x 1.2 V / 4500 mAh NiMh batteries 

0.1 A 

0.0001 (sin) 

either cm or mm 

-5 to +45°C 

NiMh integrated 

min. 9 hours in continuous operation 

3 hours 

Version 1/ Stand 31.05.2010/ P 074.20 NMA 9 en.pdf

HMG 

Handheld Measuring Device 

Art. No. 074.02 

The HMG is a handheld measuring device used to record measurements from individual sensors manually. A compact 2-channel 

display device for easy use measurement in the field – even under difficult conditions on the building site. With optimised reading 

in raw or converted physical output variables. This device has features such as intuitive 1-button operation, long running 

time with a set of batteries, a rechargeable battery option and a battery charge display. The backlit, high-contrast screen enables 

measurements to be read even in darkness and in bright sunlight. The device switches off automatically to maintain battery 

life. This function can be disabled to monitor measurements or for continuous use. Individual factory programming is also possible 

for a supply and output unit. 

Functions/Types of power supply 

Channel 1 

Constant current 1mA: 

All piezoresistive sensors 

PT 100 

PT 1000 

Constant current 0.1mA 

Thermistors 

Constant voltage 1V: 

Potentiometer, linear displacement 

sensor 


Language: 

Display: 


Dimensions (mm): 

Weight: 

Power supply: 


Digitisation: 

Operating time: 

Charging time with Multi Charger: 

English 

4x20 characters 

IP65 (splash-proof) 

165x85x40 (LxWxH mm) 

320 g 

3 x AA batteries (LR6) or 

3 x Ni-MH mignon batteries (AA) 

-10 to +50°C 

16 bits 

14 h 

3.5 h (Ni-MH) 

Channel 2 

Channel 2 can be used to measure temperature 

(AD590). Either pure temperature 

sensors based on AD590 (TAD) or combined 

transducers with an integrated AD590. 

Extras 

Set of batteries for HMG: 3 Ni-MH cells 1.2V/2600mAh 

Accessories 

Plug-in battery charger 

Sensor connection cable 

Sensor adapter cable (suitable for 

customer‘s transducer) 

Instruction manual 

Version 1/ Stand 12102010 12102010 12102010/ P 074.02.00 HMG en.pdf 

Fig.: Multi Charger

GLM Mobile 

Handheld with GLM Software 

Art. No. 074.13 

This new digital display and storage device is 

the consistent further development of a data 

recording system to measure line programs, 

such as inclination and borehole measurements 

in terms of position and direction. 

It includes all the typical programs for measuring 

boreholes and offers a wide range of monitoring 

mechanisms to ensure high-quality measurements. 

After recognising the measurement location 

via RFID, the system guides you through 

the associated measuring program step by step. 

It gives you clear instructions about the measurement 

method and the measuring sequence 

and displays these on a screen that is clearly 

visible under all conditions. During the actual 

measurement, the system detects measuring 

errors within their parameters and immediately 

draws your attention to them both acoustically 

and visually on the display. 

Your handheld device, which offers much more 

than the usual standard of a Bluetooth connection 

on its new cable reel, with integrated measurement 

and power supply unit, can even fall 

from a height of almost two metres into mud, 

onto concrete or into a puddle of water without 

suffering any damage. 

GLÖTZL‘s typical understanding of a measurement 

device that is suitable for use on building 

sites is fully integrated into this unit and in the 

user friendly, self-explanatory software. 

Measuring can be fun, why not give it a try? 

By the way: If you are already the proud owner 

of a high-quality measurement system from 

GLÖTZL, we offer attractive conversion and 

modernisation options for your system. 

Why buy something new when you already 

have the best? 

Functions 

Data communication via Bluetooth to the cable reel/probe, 

max. 10 m transmission distance 

Supports measurement recording of all digital probes of the GLÖTZL 

models NMGD, HPG, BMS 

Software for menu-guided measurement sequence of the line measurement 

programs with display of depth, measured value, error difference in 

reversal measurement 

Measurement level management, measurement levels stored under 

user-defined names; option of automatic level selection via RFID 

Measurement series of a measurement level stored under user-defined 

names or numbers 

Stored measurement series can be called up in a table 

(graphic will soon be available) 

Data transfer/data acceptance via USB flash drive (XML format); 

optionally via GPRS 

Accessories 

RFID module for automatic level recognition 

Additional battery pack 

Wireless communication GPRS 

Carry case 

Tabletop charger 

Docking station to transfer data to a PC 

GLNP evaluation software 

RS232 adapter 

Technical specifications for display unit: 

Display: Colour touch-screen display 3.7“ 

Resolution: Full VGA 480 x 640 

Technology: Transreflective TFT (can be read even in sunlight) 

Brightness: 165 cd 

Keypad: 

Numerical with special function keys 

Memory: 8 GB SD-Karte 

Dimensions: 100 x 200 mm 

Communication: Bluetooth Class II, V 2.0 + EDR 

Protection class: IP65, IEC 60529 

Durability: Drop height of 1.8 m on to concrete 

Version 2/ Stand 11.01.2011 / P 074.13 GLM Anzeigegerä t en.pdf

Stand: 12.06.2003 / RA / P101.00.00.00.00.001R01_engl.doc 


2-CHANNEL READOUT UNIT 

Typ: AWE-AOS 

Art.-Nr.: 101… 

The readout unit is developed for monitoring Fiber Bragg grating sensors like strain or temperature 

sensors. The accuracy of the unit can be improved by a stabilized reference grating. It is suiteable 

as well for the long-term monitoring of buildings as for measuring vibrations. 

Stand-alone version with internal PC and TFT color display 

Interrogation unit without PC 

(analog or serial RS-232 output)

Stand: 12.06.2003 / RA / P101.00.00.00.00.001R01_engl.doc 

Specifications 

Working Wavelength* 

Resolution 

Accuracy** 

Sampling Rate 

Optical Input 

Operating Voltage 

1520 nm…1560 nm 

0.1 K resp. 1 μstrain 

±2.5 K resp. ±25 μstrain 

1000 Samples/sec. 

Singlemode, FC/APC 

230VAC/50Hz - 110VAC/60Hz 

* Other wavelengths on request 

** Can be improved by an internal reference grating 






HAND AIR QUANTITY REGULATOR 

Type: T 1 ALR 16 PF 

Art. No.: 36.01.01 

The portable automatic air quantity regulator T 1 ALR 16 PF is used for manual measurement up to max. 

16 bars of: 

Stress cells and settlement cells 

All components, inclusive a 200 bars/ 1 l compressed 

air cylinder are placed in a portable, 

splash-proof casing. 

The most important tools are placed in the cover 

of the casing. 

Weight: 

13 kgs 

Dimensions: Length: 420 mm, 

depth: 310 mm 

height: 210 mm 

Operat. time: 

Cylinder filling 140 bars, 

tubing length 100 m, 

measuring value approx. 2 bars, 

meas. time of each meas. point 

1.5 min. 

= approx. 60 measuring points 

By measurement of the cells with compressed air, a consideration of level difference between pressure cell 

and measuring station is not necessary. 

By an automatic regulator, the quantity of air supply to the cells is kept constantly in two sizes, for filling of the 

tubing and measurement of the cell. 

The searched pressure is indicated by a manometer, Ø 160 mm, accuracy class 0.6 % f.s. 

For control of the operability of the instrument, a manometer for the air reserves of the compressed air cylinder 

is installed. The cylinder pressure - reduced by a pressure reducer - is indicated at a prepressure manometer 

and can be regulated. 

One pressure cell can directly be connected to the air quantity regulator, further ones via change-over manifolds. 

Meas. ranges: 

Accessories: 

(Please indicate when ordering.) 

0-0.6 / 0-1 / 0-1.6 / 0-2.5 / 0-4 / 0-6 / 0-10 / 0-16 (indications in bars) 

Transfuse connection for filling of the small compressed air cylinder from a big bottle 

Spare compressed air cylinder 200 bars / 1 l


Setting to work, pneumatic: 

Open compressed-air cylinder and check operating pressure. 

Operating cock below manometer-cylinder pressure „AUS“. 

Open operating cock and adjust operating pressure at prepressure manometer at approx. 1 bar higher than 

the measuring range. 

At this adjustment, the measuring range can be used in full scale.. 

However, you must take notice that in case of improper handling the measuring range can be exceeded and 

thus the measuring system will be overloaded at one manometer. 

When adjusting the prepressure equal to that of the measuring range, this range can only be used by 90%. 

The prepressure is adjusted with the toggle besides the carrying handle of the box. 

The prepressure is dependant on the cylinder pressure so that perhaps a subsequent adjustment becomes 

necessary. 

Connect measuring line to the instrument and also connect it with the pressure line of the pressure cell or 

with the change-over manifold – connection change-over box. 

Remark: When using the instrument T 1 ALR D2/PF, adjustment has to be done in measuring range 2. 

Measurement: 

Open operating cock. In case of change-over units open isolating valve of the required measuring point. 

Turn measuring valve to position „Füllen“. Now the pressure cell is pumped with approx. 4-fold air. The 

measuring value is increasing. 

If no more increase of the value can be recognized, the measuring valve has to be turned to position „Messen“. 

The pressure cell is now pumped with normal mass flow rate. The display of measuring values becomes 

somewhat smaller due to the reduction of flow loss in the pressure line. 

The measuring value is now settled and can be recorded after no more change is recognized. 

Switching to the next measuring point is done by opening of the next valve and closing of the measured 

valve. For switching to the next point, the pressure build-up of the measured line is used for filling of the 

measuring point which has to be measured next. 

By this, savings in time and compressed air. 

After termination of measurement close compressed-air cylinder, close operating valve and decouple pressure 

line. The air quantity regulator is discharged. 

The operating cock should be closed at each measuring stop to avoid unnecessary air consumption. 

Remark: When using type T 1 ALR D/PF, switch off digital display. 

Cells for model tests, type EM 28 and EF 45 

These cells should only be operated in position „Messung“ due to the small-dimensioned measuring line and 

the valve stroke. 

Function control of cells 

Control of operability of cells can be done after measurement has been carried out. 

Close operating valve. The manometer display is somewhat dropping (flow loss of line-cell) and is remaining 

at the closing point of the valve. 

Function control of air quantity regulator 

Close pressure line connection at the air quantity regulator. Open operating valve. The display of measuring 

value is increasing.Close operating valve at approx. 75% of measuring value. Display is still somewhat increasing 

and then must remain. If a dropping of the value is recognized, a leakage must be in the line system. 

In this case, retighten the screwings resp. check with soap water where the leakage is. 

A function control should be carried out- if possible – before a measuring application. 

Filling of compressed-air cylinder 

Connect small compressed-air cylinder to the big one by transfuse connection. 

Completely open valve of small cylinder, only slightly open big cylinder till an overflow of compressed air can 

be recognized. After 5 minutes, open big cylinder somewhat more. After further 5 minutes and after the small 

cylinder is cooled down, close at first small cylinder and then big cylinder, remove from transfuse connection 

and put into the instrument. 






AIR QUANTITY REGULATOR 

Type: T 1 ALR D / PF 

Art. No.: 36.01.02 

The portable automatic air quantity regulator T 1 ALR D / PF is used for manual measurement up to max. 

16 bars of: 


The pneumatic pressure is converted into an electric signal by an electric pressure transformer and digitally 

indicated proportial to the pressure by a measuring value amplifier. 

The device is equipped with a LCD digital display, high grade accumulators and an automatic charger. 

Figure: 

Air quantity regulator, type T 1 ALR D 

All components, inclusive a 200 bars / 1 l 

compressed air cylinder are placed in a portable, 

splash-proof casing. 

The most important tools are placed in the cover 

of the casing. 

Weight: 

Dimensions: 

13 kgs 

Length: 420 mm, depth: 310 mm, 

height: 210 mm 

Operat. time: 

Cylinder filling 140 bars, 

tubing length 100 m, 

measuring value approx. 2 bars, 

meas. time of each meas. point 

1.5 min. 

= approx. 60 measuring points, 

By measurement of the cells with compressed air, a consideration of level difference between pressure cell 

and measuring station is not necessary. 


tubing and measurement of the cell. 

The searched pressure is indicated by an electric pressure transformer, accuracy class 0.3% f.s. 

Models: Type T 1 ALR D / PF Please indicate one measuring range when ordering. 

0-2 / 4 / 6 / 10 or 16 bars 

Type T 1 ALR D2 / PF 

Two meas. ranges, switchable according indication 

0-2 and 4 / 0-2 and 6 / 0-2 and 10 or 0-2 and 16 bars 

Accessories: 

Transfuse connection for filling of the small compressed air cylinder from a big bottle 

Spare compressed air cylinder 200 bar / 1 l 

Cylinder pressure transducer and connection adapter for operation with a big compressed 

air cylinder for long-term measurement


Setting to work, pneumatic: 

Open compressed-air cylinder and check operating pressure. 

Operating cock below manometer-cylinder pressure „AUS“. 

Open operating cock and adjust operating pressure at prepressure manometer at approx. 1 bar higher than 

the measuring range. 

At this adjustment, the measuring range can be used in full scale. 

However, you must take notice that in case of improper handling the measuring range can be exceeded and 

thus the measuring system will be overloaded at one manometer. 

When adjusting the prepressure equal to that of the measuring range, this range can only be used by 90%. 

The prepressure is adjusted with the toggle besides the carrying handle of the box. 

The prepressure is dependent on the cylinder pressure so that perhaps a subsequent adjustment becomes 

necessary. 

Connect measuring line to the instrument and also connect it with the pressure line of the pressure cell or 

with the change-over manifold – connection change-over box. 

Remark: When using the instrument T 1 ALR D2/PF, adjustment has to be done in measuring range 2. 

Measurement: 

Open operating cock. In case of change-over units open isolating valve of the required measuring point. 

Turn measuring valve to position „Füllen“. Now the pressure cell is pumped with approx. 4-fold air. The 

measuring value is increasing. 

If no more increase of the value can be recognized, the measuring valve has to be turned to position 

„Messen“. The pressure cell is now pumped with normal mass flow rate. The display of measuring values 

becomes somewhat smaller due to the reduction of flow loss in the pressure line. 

The measuring value is now settled and can be recorded after no more change is recognized. 

Switching to the next measuring point is done by opening of the next valve and closing of the measured 

valve. For switching to the next point, the pressure build-up of the measured line is used for filling of the 

measuring point which has to be measured next. 

By this, savings in time and compressed air. 

After termination of measurement close compressed-air cylinder, close operating valve and decouple 

pressure line. The air quantity regulator is discharged. 

The operating cock should be closed at each measuring stop to avoid unnecessary air consumption. 

Remark: When using type T 1 ALR D/PF, switch off digital display. 

Cells for model tests, type EM 28 and EF 45 

These cells should only be operated in position „Messung“ due to the small-dimensioned measuring line and 

the valve stroke. 

Function control of cells 

Control of operability of cells can be done after measurement has been carried out. 

Close operating valve. The manometer display is somewhat dropping (flow loss of line-cell) and is remaining 

at the closing point of the valve. 

Function control of air quantity regulator 

Close pressure line connection at the air quantity regulator. Open operating valve. The display of measuring 

value is increasing.Close operating valve at approx. 75% of measuring value. Display is still somewhat 

increasing and then must remain. If a dropping of the value is recognized, a leakage must be in the line 

system. In this case, retighten the screwings resp. check with soap water where the leakage is. 

A function control should be carried out- if possible – before a measuring application. 

Filling of compressed-air cylinder 

Connect small compressed-air cylinder to the big one by transfuse connection. 

Completely open valve of small cylinder, only slightly open big cylinder till an overflow of compressed air can 

be recognized. After 5 minutes, open big cylinder somewhat more. After further 5 minutes and after the small 

cylinder is cooled down, close at first small cylinder and then big cylinder, remove from transfuse connection 

and put into the instrument. 







Type: M 5 ALR 6 

Art. No.: 36.10.10 

The hand air quantity regulator M 5 ALR 6 is used for manual measurement up to max. 16 bars of: 

Stress cells, settlement cells and cells for model tests 

By measurement of the cells with compressed air, a consideration of level difference between cell and measuring 

station is not necessary. 

By an automatic regulator, the quantity of air supply to the cells is kept constantly in one size for each measuring 

point. 

The searched pressure is indicated by a control manometer, Ø 60 mm, accuracy class 2.5. 

The device is equipped with a connection parallel to the pressure line, by which additional display devices 

with high accuracy or recording devices can be connected, e.g. precision measuring manometers, electric 

pressure transducers a.s.o. 

Up to five cells can be connected to the instrument and can be measured simultaneously and successively. 

This has the advantage, preferably in case of model tests or tests, of a continuous observation of the measured 

values. 

For control of the operability a prepressure manometer is installed which is indicating the arising air pressure 

at the entry of the device. According to requirement, the 5 measuring points can be switched on. 

Measuring ranges: Please indicate when ordering. 

0-0.6 / 0-1 / 0-1.6 / 0-2.5 / 0-4 / 0-6 / 0-10 and 0-16 bars 

Accessories: Cylinder pressure transducer with connection line for air supply by a compressed-air cylinder 

Additional display devices: Precision measuring manometer, Ø 160 mm, cl. 0.6 

Electric pressure transducer 

Weight: Approx. 12 kgs 

Dimensions: Standard casing 19“, 4 HE, length 510 mm, depth 330 mm,height 220 mm 







Type: M 1 ALR 16 (D) 

Art.- No.: 36.10.01 (02) 

The hand air quantity air regulators, types M1 ALR 16 and M 1 ALR-D, are used for manual measurements 

up to max. 16 bars resp. up to 17.5 bars of stress cells and settlement cells. 

Figure: M 1 ALR 16 

Figure: M 1 ALR D 

By measurement of the cells with compressed air, a consideration of level difference between cell and 

measuring station is not necessary. 

By an automatic regulator, the quantity of air supply to the cells is kept constantly in two sizes, for filling of 

tubing and measurement of cell. 

M 1 ALR 16: The searched pressure is indicated by a manometer, Ø 160 mm, accuracy class 0.6. 

M 1 ALR D: The searched pressure is converted into a measuring current of 0-100 mV by an electric 

pressure transformer, accuracy class 0.3, and digitally displayed. 

For control of the operability of the instrument, a prepressure manometer is installed which is indicating the 

arising air pressure at the entry of device. 

One cell can directly be connected to the air quantity regulator, further ones by change-over manifolds. 

Measuring ranges: 

Please indicate when ordering. 

M 1 ALR 16: 

M 1 ALR D: 

0-0.6 / 0-1 / 0-1.6 / 0-2.5 / 0-4 / 0-6 / 0-10 and 0-16 bars 

Standard measuring range: 0–10 bars 

Further measuring ranges by exchange of the electric pressure transformer 

0-0.7 / 0-1 / 0-3.5 / 0-7/ 0-17.5 bars; display digital each 0–100.0 

Models: 

M 1 ALR 16 

M 1 ALR D 

M 1 ALR DP 

Weight: 

Dimensions: 

Air supply by external compressed-air cylinder 

Accessories: Cylinder pressure reducer with connecting pipe 

Measuring tubing 2 m long with quick coupling 

Air supply by external compressed air cylinder, mains connection 230 V, 50 Hz 

Accessories: Cylinder pressure reducer with connecting pipe 


Air supply by external compressed air cylinder 

Current supply by installed accu with charger 

Accessories: Cylinder pressure reducer with conntecting pipe 


Approx. 12 kgs 

Standard casing 19“, 4 HE, length 510 mm, depth 330 mm, height 220 mm


Setting to work, pneumatical: 

Open compressed air cylinder and control operating pressure. 

Operating cock below the manometer-cylinder pressure to position „OFF“. 

Open operating cock and adjust operating pressure at the initial pressure manometer approx. 1 bar higher 

than the measuring range. 

In this adjustment, the measuring range can be used in its full range. 

However, please have attention that the measuring range can be exceeded in case of improper maintenance 

and thus the measuring system of a manometer can be overloaded. 

When adjusting the initial pressure equal to the measuring range, it can only be used for 90%. 

The initial pressure is adjusted with the toggle besides the carrying handle of case. 

The initial pressure depends on cylinder pressure so that a subsequent adjustment may be necessary during 

operation. 

Connect measuring line to instrument and then connect it with the pressure line of cell or with the switch-over 

manifold – connection change-over box. 

Measurement: 

Open operating cock. For change-over manifolds, open stop valve of the required measuring point. 

Turn measuring valve to position „filling“. Now the cell is pumped with 4-fold air. The measured value is 

increasing. 

If no more increase of value can be recognized, the measuring valve has to be turned to positon 

„measurement“.The cell is now pumped with normal measuring discharge rate. The measured value 

indication is becoming somewhat smaller, caused by decrease of flow loss in the pressure line. 

The measured value is now finding a certain level and can be recorded after no more change occurs. 

Switching to next measuring point is done by opening of next valve and closing of measured valve. When 

switching over, the pressure build-up in the measured line is used for filling of the measuring point which is 

measured next. 

Saving in time and compressed air. 

After terminated measurement, close compressed air cylinder. Close operating valve and disconnect 

pressure line. The air quantity regulator is discharged. 

To avoid any unnecessary air consumption, the operating cock should be closed at each measuring pause. 

Cells for model tests, types EM 28 and EF 45 

By the small-dimensioned measuring line and valve lift, these cells may only be operated in position 

“measurement”. 

Functional inspection of cells 

The inspection of cells for operability can be done after measurement has been carried out. 

Close operating valve. The manometer display is slightly decreasing (flow loss line-valve) and is remaining at 

the closing point of valve. 

Functional inspection of air quantity regulator 

Close pressure line connection at air quantity regulator. Open operating valve. Display of measured values is 

increasing. Close operating valve at approx. 75 % of measured value. Display is still increasing a little and 

must then stay. If a decrease of value is observed, then a leakage must be in the line system. In this case, 

the screwings must be retightened resp. is must be checked with soap water where the leakage is. 

If possible, a functional inspection should be carried out before each measuring application. 

Filling procedure of compressed air cylinder 

Connect small compressed air cylinder with filling connection to big compressed air cylinder. Take care that 

intact nylon sealings are fitted at both connection ends of the filling connection. 

Completely open valve of small cylinder, open big cylinder only a little till an overflow of compressed air is 

remarkable or hearable. After approx. 5 minutes, open big cylinder somewhat more. After further 5 minutes 

and when small cylinder is cooled down, firstly close small cylinder, secondly close big cylinder. Remove from 

filling connection and insert into the measuring instrument (air quantity regulator). 







Type: M 1 ALR - D 

Art. No.: 36.10.02 

The hand air quantity air regulator, type M 1 ALR-D, is used for manual measurement up to 17.5 bars of: 


By measurement of the cells with compressed air, a consideration of level difference between cell and measuring 

station is not necessary. 


tubing and for measurement of the cell. 

The searched pressure is converted into a measuring current of 0-100 mV by an electric pressure transformer, 

accuracy class 0.3 and digitally displayed. 

One cell can directly be connected to the air quantity regulator, further ones by change-over manifolds. 

Measuring ranges: Standard measuring range: 0 – 10 bars 

Further measuring ranges by exchange of the electric pressure transformer 

Models: 

M 1 ALR D 

M 1 ALR DP 

M 1 ALR DPA 

Weight: 

Dimensions: 

0-0.7 / 0-1 / 0-3.5 / 0-7/ 0-17.5 bars; display digital each 0–100.0 

Air supply by external compressed air cylinder, mains connection 230 V, 50 Hz 

Accessories: Cylinder pressure reducer, type PFL 25, measuring tubing 2 m long with 

quick coupling 

Air supply by external compressed air cylinder 

Current supply by installed accu with charger 

Accessories: Measuring tubing 2 m long with quick coupling, spare cylinder for compressed 

air, content 1 l, transfuse connection for compressed air 

Air supply by installed compressed-air cylinder, max. 200 bars / 1 l 

Current supply by installed accu and charger 

Accessories: Measuring tubing 2 m long with quick coupling, spare cylinder for compressed 

air, content 1 l, transfuse connection for compressed air 


Standard casing 19“, 4 HE, length 510 mm, depth 330 mm, height 220 mm 






HAND PUMP FOR OIL OPERATION 

Type: M 1 H 16 

Art. No.: 35.01.01 

The hand pump, type M 1 H 16, is used for filling of measuring lines during assembly and for manual measurement 

of cells. 

Up to 2 pressure cells can directly be connected to the hand pump and be switched over with 2 installed 

change-over cocks. 

Any number of cells can be connected and successively measured by a change-over manifold as subset to 

the hand pump. 

The hand pump is designed for pressures from 0 up to 300 bars, according to the measuring range of manometer. 

Components: 

1. Frame with manometer carrier 

2. Threaded coupling, 

3. thread R ½“ / M 20 x 1.5 L 

3.1. Precision manometer Ø 160 mm, 

connection R ½“ at the bottom 

4.1. Tank, volume approx.. 0.4 l 

4.2. Filler gap 

4.3. Oil screen 

5. Plunger pump (Bosch) 

6. Feed throttle with valve 

7. Throttle valve „blue“ 

8. Relieve valve „red“ 

9. 2 Change-over valves „yellow“ 

10. 2 Pressure line connections 

11. Return line connection 

12. Return line filter 

Operating agents: 

Measuring oil in tank, Type Mobil ® Velocite No. 3 in container, Requirement approx. 1 l for filling of 100 m 

measuring line Ø 6/3 mm. 

Weight without manometer 8.5 kgs 

Dimensions: Length: 55 cm, depth: 16 cm, height: 36 cm


HAND PUMP for OIL OPERATION 

Type: M2 H16 

Art. No.: 35.01.02 

The hand pump, type M 2 H 16, is used for filling of measuring lines during assembly and for manual measurement 

of pressure cells. 

One pressure cell can directly be connected to the hand pump. Any number of cells can be connected and 

successively measured by a change-over manifold as subset to the hand pump. 

The hand pump is designed for pressures from 0 up to 300 bars, according to the measuring range of 

manometer. 

Components: 

1. Frame with manometer carrier 

2. Threaded coupling, 

thread R ½“ / M 20 x 1.5 L 

3. Precision manometer Ø 160 mm , 


(small measuring range) 

3.1. Precision manometer Ø 160 mm, 


(large measuring range) 

4.1. Tank, volume approx. 0.4 l 

4.2. Filler gap 

4.3. Oil screen 

5. Plunger pump (Bosch) 

6. Feed throttle with valve 

7. Throttle valve „blue“ 

8. Relieve valve „red“ 

9. Stop cock „yellow“ for pressure line 

9.1. Stop cock „green“ for manometer 3 

(small measuring range) 

10. Pressure line connection 

11. Return line connection 

12. Return line filter 


Measuring oil in tank, Type Mobil ® Velocite No. 3 in container, Requirement approx. 1 l for filling of 100 m 

measuring line Ø 6/3 mm. 

Weight without manometer 9 kgs 

Dimensions: Length: 55 cm, depth: 16 cm, height: 36 cm 







ELECTRIC MOTOR PUMP 

portable, for oil operation 

Type: TM 1 B 16 

Art. No.: 35.02.01 

The portable electric motor pump, type TM 1 B 16, is used for manual measurement of hydraulic cells for: 

Anchor load, concrete stress, earth pressure, porewater pressure and water pressure 

According to measuring ranges of manometer, the portable electric motor pump can be used for pressures 

from 0 up to 600 bars. 

By constant oil flow, an optimal indication of measuring values can be achieved. Even in case of changing 

service staffs, operating faults can largely be excluded. 

One cell can directly be connected to the motor pump. By a change-over manifold, as many cells as required 

can be connected and measured successively. 

Placed in the cover of the casing, the following accessories are delivered: 

- Tools 

- Mains cable 

- 2 m measuring line with quick couplings for the connection of motor pump to a change-over manifold 


Weight: 

Dimensions: 

Electric supply 230 V, 50 Hz (on request 60 Hz) 

Measuring oil, Type Mobil ® Velocite No. 3 in container 

approx. 21 kgs 

Height: 347 mm, depth: 209 mm, width: 461 mm 

Measuring ranges: 0-2.5 / 0-4 / 0-6 / 0-10 / 0-16 / 0-25 / 0-40 / 0-60 / 0-100 / 

0-160 / 0-250 / 0-400 / 0-600 (indications in bar) 

.


ELECTRIC MOTOR PUMP 

Type: M 1 B 16 

Art. No.: 35.02.03 

The electric motor pump, type M 1 B 16, for oil operation, is used for measurement of cells for: 

Concrete stress, earth pressure, porewater pressure and water pressure 

According to range of manometer, the electric motor pump can be applied for pressures from 0 up to 

300 bars. 

By constant oil flow, an optimal indication of measured value can be achieved.. 

Flow losses for line lengths of more than 100 m are entering the measured value in constant height. 

Even in case of changing service staff, operating errors can largely be avoided compared with the hand 

pump. 

One cell can directly be connected to the motor pump. Any number of cells can be connected and successively 

measured by a change-over manifold. 


Weight: 

Dimensions: 

Electric supply 230 V, 50 Hz (on request 60 Hz), 60 Watt 

Measuring oil, Type Mobil ® Velocite No. 3 in container 


Height: 380, depth: 400, width: 505 mm 







ELECTRIC MOTOR PUMP with 

ADDITIONAL UNIT 

Type: M 1 B 16 

ME 2/160 U 

Art. No.: 35.02.03 

Additional unit, type ME 1/160 U, for oil operation with 2 further measuring ranges, reversible 

Thus, 3 measuring ranges according to requirement are available, which enable a very high resolution of 

different measuring values. 

Figure: Additional unit 

ME2/160 U with 

motor pump 

The additional unit is an efficient supplement to the motor pump with further measuring ranges and can only 

be used in connection with the pump. 

Measuring ranges: Manometer Ø 160 mm, class 0.6, measuring range according to requirement 

0-2.5 / 4 / 6 / 10 / 16 / 25 / 40 / 60 / 100 / 160 / 250 / 400 or 600 bars 

The largest measuring range is installed in the motor pump. All manometers are equipped with overpressure 

protection contacts and are thus protected against overload. The measuring ranges are switched over by 

magnetic valves. 

Dimensions: Height: 550 mm, depth: 400 mm, width: 505 mm 

Weight: 

With pump 45 kgs 





Version: 09.09.2004 / SP / P048.10.01.00.00.001R02_engl.doc 


STABILIZER, HYDRAULIC 

Type: KM 1 B 16 

Art. No.: 48.10.01 

For an exact and load relative control of presses, stabilizing equipments are used, which are connected to the 

hydraulic circuit of the press. By this unit, the power of the press can hydraulically be stabilized by means of 

an installed electric pressure transducer. 

Further measuring devices can be connected by a measuring input of 0– Volt DC: 

- Load cells 

- Displacement transducers for displacement stabilization 

The device operates computer-controlled with a switching speed of ±digit of the adjusted values and with the 

following functions: 

- Lower limit value for the conveying of hydraulic fluid 

- Pressure range for further conveying 

- Upper limit value for control of a discharge valve with fine-dosing throttle equipment 

- Adjustable cut off of the device in case of overcharge or underload 

The electric measuring value, pressure, load or displacement is digitally displayed and compared by the 

computer with two adjustable numerical values specifying the nominal value. 

If the actual value does not correspond to the preselected adjustment, the required pressure is readjusted by 

pumping or discharge. 


Flow rate: 6. 9 and 12 cm³/min 

Meas. ranges: 0 – 10 / 16 / 25 / 40 / 60 / 100 / 

160 / 250 / 400 and 600 bars 

Tank capacity: 3 l 

Surrounding temperature: -5 up to +50 °C 

Supply: 

230 V, 50 Hz, 150 Watt 

Control accuracy: +1 up to 0.3 % F.S. 

Special equipment: 

- Type KM 1 B 16/2, with 2nd pump and motor for a max. flow rate of 24 cm³/min 

- Additional tank for further 8 l of hydraulic fluid 

- Potential-free contact for external pump: Maximal 250 V, 2 A 

- Datalogger for pressure- and displacement sensors 





Stand: 14.07.2009 / SP / P060.01.10.02.00.001R00_engl.docx 


MECHANICAL DIAL GAUGE 

for plastic rod extensometer 

Type: GEM 30 

Art. No.: 60.01.10.02 

Transport case with insert of expanded plastic, mechanical dial gauge, resolution 1/100 mm, 

measuring range 0–30 mm 

Function 

Put the measurement standard on dial gauge connection and check ±15 mm of the measuring 

range (tracer finger completely retracted means indication 30 mm). Attach the dial gauge to the 

adjustable connection of the extensometer and read off the measured value. 

Maintenance: 

The measuring device GEM 30 doesn’t need a special maintenance. The measuring 

accuracy may be diminished by humidity or dirt. If this is the case, dry and 

clean the instrument. (Not with solvent or corrosive!) 






DIGITAL MEASURING DEVICE 

for Plastic Rod Extensometers 

Type: GED 50 

Art. No.: 60.01.10.11 

The digital measuring device, type GED 50, is a highly-precise and uncomplicated instrument for 

measurement of extensometers. Reading errors are avoided by digital display. At not easily accessible 

locations, the position of measuring connection is sensed, the instrument is removed from measuring head 

and readings can be taken. 

Description: 1 Meas. value indication mm xx.xx max. resolution 1/100 mm 

inch x.xxx5 

2 Operating key mm/inch 

3 Combi-key on/off, setting to zero 

4 Scale matrix in plastics, meas. range 0-50 mm 

5 Instrument connection 

6 Tracer finger 

7 Standard measure 

8 Locking screw 

9 Battery shelf 

Setting to work: the measuring device GED 50 is delivered ready for operation with all accessories. 

1) For starting, press combi-key 3. 

2) Move back the caliper gauge to connection (tracer finger is retracted). 

3) Select display metric or in inches. 

4) Confirm with combi-key 3 and set display to “0“. 

5) Activate caliper gauge and check “0“ point. 

6) Attach standard measure to instrument connection and check the range of 25 mm. 

Furthermore, it is possible to set the 0-point with the gauge, if the measuring range 

of +/- 25 mm is required. 

Totally retracted tracer finger means display -25 mm. 

Maintenance: 

The measuring device GED 50 doesn’t need a special maintenance. The measuring 

accuracy can be diminished by penetration of humidity or dirt. In this case, dry the 

instrument and clean it (not with solution or caustic!). 

Do not open electronic part. 

Replacement of 

button batteries: Remove plastic cover. replace the button batteries, and take care to correct polarity. 

Usable batteries Type VARTA Duracell 

3 V Lithium No.: CR 2032 DL 2032 




Version: 23.05.2005 / IG / RA /P074.40.01.00.00.001R03_engl.doc 


HAND MEASURING DEVICE for 

VIBRATING WIRE TRANSDUCER 

Type: SMC2.02 

Art.-No: 74.40.01 

 

 

 

 

 

Simple handling 

Mains independent 

Small weight 

Illuminated display 

Display of temperature 

Application 

The vibrating wire measuring device SMC 2.02 is a 

portable, mains independent meter for inductive pick-up 

according to the vibrating wire principle. 

The low-cost hand measuring device has been developed 

for field application and can be used for simple 

measuring jobs in situ resp. as second instrument for 

adjustment and control purposes. 

Description 

The SMC 2.02 is constructed as 

pocket instrument. The 13 mm 

high figures of the LCD and the 

illumination of the display enable 

an application also under unfavourable 

light conditions. 

With the SMC 2.02 inductive 

pick-ups are measured according 

to the vibrating wire principle. 

A technically expensive protection 

and filter circuit ensures an 

optimal measurement 

At the LCD the measuring results 

of the inductive pick-up can 

be displayed as counting value, 

neutral value, frequency or linear 

value. Furthermore, the resistance 

of the inductive pick-up 

can be measured and displayed. 

A built-in control wire is used for 

a quick functional control of the 

instrument. 

For the acoustic vibration control 

of the inductive pick-up, 

an ear receiver can be connected 

at the upper side of the 

instrument. 

On the LCD the actual battery 

voltage of the instrument can be 

displayed. The accumulators can 

be recharged in the device, but 

also can easily be replaced. 

Cadmium-free, environmentally 

compatible, nickel-metal-hydride 

cells are used.


Technical Data Type SMC 2.02 

___ 

Measuring range (frequency) 

0.5...3.5 kHz 

Resistance 

0...2200 

Inducing impulse 

60 V / 1 ms 

Measuring error (transducer-dependent) 0.05...0.1% 

Resolution (transducer-dependent) 0.01 (counting value) 

1 unit (neutral value) 

0.01 Hz (frequency) 

0.01 Hz 2 (linear value) 

Display 

LCD – 8 signs, background illuminated 

Ear receiver connection 

high impedant 

Operating temperature range -10...+60 °C 

Accu capacity 

1500 mAh 

Operating time with one accu charged 

- Background illumination on 10 hours, thereafter without background 

illumination at least 4 hours operation 

possible 

- Background illumination off > 80 hours 

Protection type IP 65 

Dimensions 

approx. 195 x 100 x 50 mm 

Weight 

approx. 0.5 kg 

Functions 

Measured values as counting value, neutral value, 

frequency, linear value 

Measured values normal / inverted 

Resistance of transducer 

Measured values of control wire 







READOUT UNIT 

Type: VMG 14.2 

Art. No.: 74.12.11 

The multimeter is used for the measurement of nearly all single sensors available on the market, but can 

furthermore also be applied for line-type measuring procedures (e.g. inclinometers). The measuring results 

are optionally displayed and stored, either as electric values or as real physical sizes with unit. 

It has an external charger for the rechargeable, maintenance-free Li-Ion accumulators, and thus can be operated 

network-independently, and be recharged by the 230V mains. 

The unit is programmable by keyboard or by USB interface. 

All measured data are permanently stored and can be downloaded by the USB interface. 

For the line-type measuring procedures, variable operational programs are available which can easily be 

operated by the user, with which measuring step length, total measuring length and type of measurement can 

be defined. 

Additionally, the unit can be used as temporary collecting system (data logger) for the measured values. A 

time program is automatically recording the data and is storing them into an allocated file. 

Front panel and keyboard allocation 

(1) Display 

Image diagonal 4", resolution 240x160 pixel, monochrom (standard display black on white) 

transflective F-STN-type, LED background illumination, dereflected inspection windows 

automatic luminosity and contrast control, manual adjustment possible 

(2) Keyboard 

Foil keyboard with raised key areas, 18 input keys, one key each for switch-on and switch-off 

(3) Charging control display 

Charging end = green, charging = yellow 

Connectable single sensors: 

− Piezoresistive transducers for: Pressures: 0–2; 5; 10; 20; 50; 100; 200; 400; 600 bars 

− Load cells and anchor load cells: 0–250; 500; 1000; 1400; 2000–20000 kN 

− All sensors with output signal 4–20 mA and 0–20 mA 

− Temperature (AD590 / PT100) 

− Displacement transducer ± 20 mm, 0–50/100/200/400 mm 

− Vibrating wire transducers (VW and VM) 

− Resistive strain gauges (DMS)


Power supply 

− External direct voltage 18–24 V DC , e.g. by delivered 

external 230V AC power pack 

− Internal Li-Ion accumulator 

Dimensions, weight, temperature 

Weight: 2.6 kgs without power pack 

Dimens.: W=190 mm, h=120 mm, d=210 mm 

Temperature range: -5...+45°C (recommended) 

External connections 

− Sensors 

− Computer (PC) 

− Energy supply 

Line measurement procedure 

− Inclinometer meas. probes analog, digital 

− Hydrostatic settlement measuring device 

− Sliding micrometer 

− Free programmable programs 

Options 

Vibrating wire measuring board (SMM) 

Meas. range: 600 up to 3500 Hz 

Measur. deviation: < 0.01 % (transducer-dependent) 

Resolution: 10 -5 at 1 kHz 

Actuation: Impulse 

Sensor supply 

Two channels, individually to be switched on or off, 

galvanically separated 

− Bipolar voltage controlled ±2.5; ±6.0; ±12.0 V 

and non-controlled ±15.0 V on CH0 

− Unipolar voltage controlled +5; +12; +20 V 

and non-controlled +24 V on CH1 

− Current controlled 0.2 or 1.0 mA on CH0 and CH1 

Analog inputs 

2 parallel channels on ADC input, self-calibrating, digitalization 

resolution 16 bit, with input protecting circuit, 

channels switchable between current (RE ≈ 61Ω) and 

voltage (RE ≈ 820kΩ) 

Current meas. ranges: 0.5; 1.0; 2.0; 5.0; 10.0; 25.0 mA 

Voltage meas. ranges: 0.1; 0.2; 0.5; 1.0; 2.0; 5.0 V 

Data storage capacity 

− 59999 single measured values 

− 156 data 

− 449 sensors 

− 299 types 

Housing 

Stable aluminium profile with carrier handle, protection 

type IP65 (water jet- and dust-proof); 

As additional accessories, an imitation leather bag 

is available. 

Charger 

By the charging socket, 18...24V DC are fed. An integrated 

control switch, the charging controller, is 

switching automatically between the two operating 

types, battery- or mains operation. At the same 

time, it is recognizing the actual status of the accumulators, 

is controlling the temperature and also the 

charging procedure in such a way that it is working 

best possible. A protecting circuit which is fixed 

integrated in the accumulator, is securing the necessary 

operational safety. 

Accumulator and operational standby 

The device is equipped with a li-ion accumulator, 

which is offering – on account of its low self discharge 

rate – a high availability of the unit, also in 

case of a longer non-use time. 

The actual charging condition can be inquired in the 

menu ”instrument adjustment“ under „battery 

status“ It has to be controlled each 3 months. In 

case of a too low voltage, an automatic switch-off is 

done on account of deep discharge. A charging 

procedure takes approx. 6 hours. 

Operational time: >8h for NMGD (cell types A and 

B) in standard operation 

Software options 

Evaluation software – special programs 

− GLNP evaluation program for all line measuring 

procedures 

− GLA evaluation program for object support 

service with file maintenance, parameter protection,plot 

and data exchange 





Convergence Measuring Bolts with Light 

Emitting Diode Bolts > 

Convergence Measuring Bolts with Light 

Emitting Diode Bolts GK > 

Convergence Measuring Bolts with 

Plastic Refl ectors > 

Surveying Points Hydraulic Packer System > 

Convergence Measuring Device > 

Measuring Anchors > 

Convergence Measuring Bolts KV > 







CONVERGENCE MEASUREMENTS with 

LIGHT EMITTING DIODE MEASURING BOLTS 

Type: GKV . . 

Art. No.: 90.10 

Levelling and Convergence Measurements 

In modern tunnel construction, the mostly applied measuring methods are the levelling of tunnel roof ridges or 

other points of the tunnel reveal and the measurement of convergences of the tunnel formwork. 

Levelling is done with the normally used instruments in construction industry. The levelling of the roof ridge 

can be done with an increased measuring accuracy of +/-1 mm by a special suspension device and be 

carried out by the surveying engineer in the course of the usual works on the tunnel site. The suspension 

device, type GST and STZ (see separate data sheet) can be combined with the convergence bolts KVK resp. 

KVM. By this, it is possible to join the distance changes, normally to the tunnel axis - arising during 

convergence measurements - to the height changes in the longitudinal tunnel axis which are measured at 

levelling of the roof ridge. 

For establishment of a convergence cross section, the convergence bolts are relocated in the tunnel reveal, 

possibly directly after the regrating, then embedded in concrete or welded on tunnel arches. The 

convergence bolts are equipped with a thread with connection at the tunnel-sided end in which a measuring 

device – steel measuring tape or Invar wire - is fitted. The measuring tape is prestressed by springs with the 

convergence measuring instrument which is again fixed at an opposite placed convergence bolt. The 

distance change between the benchmarks is read at the convergence measuring instrument, for example 

with a mechanical dial gauge. 

To reduce the impediments of the construction activities as far as possible, the recording of convergences by 

geodetic measurements is applied more and more. For this, a measuring bolt with light emitting diode resp. a 

bolt with attached reflector instead of the converence bolts is embedded in concrete and its displacement is 

measured with a theodolite. By this method, measuring accuracies of +/-1 mm can be achieved which 

sufficiently corresponds to the claims of the static stability control for tunnel construction. Such measurements 

have the advantage - compared with the relative measurements between two movable points with the 

convergence measuring instrument - that the absolute displacements of the tunnel lining are measured while 

in case of convergence measurements with the convergence measuring instrument this is only possible in 

combination with at least one geodetic measurement. 

Levelling and convergence measurements are the most fundamental measurements in tunnel construction 

and are normally carried out in all control and main measuring cross sections.


Schematic graph of the measuring bolts with light emitting diode 

Rock Shotcrete Cavity 

Light emitting 

diode 

Connection possibility 

for mech. dial gauge 

l 

Bolt, type GKV 20/250 

Electric connection line 

P090SB01.Vsd 

250 

mm 

Measuring scheme of an optical convergence measurement with a theodolite 

Meas. cross 

section 

1 mm reading 

accuracy 

10 m


Convergence bolts, type GKV and GK, with light emitting diode 

The convergence bolts, type GKV and GK, with light emitting diode, are installed in the same way than the 

conventional convergence bolts. 

For assemblage, an electric connection to a current supply bolts has to be established besides the installation 

of the bolts. 

Figure: Assembly material and tools 

Necessary for electric assembly of the convergence bolts: 

Assembly material: 

- (1) Connection line 2-core, 2 x 0.5 mm 2 

- (2) Insulating joint connector 1.5 – 2.5 mm 2 

- (3) Squeezing pincers for the joint connectors 

- (without fig.) Adjusting key 6 kt., Allen key 2.5 mm 


During operation, the current supply is screwed on a bolt, type GKE. Two models with battery operation are 

available, which can be equipped for accu operation. 

- (4) Type GKB, battery housing 

- (5) Type GKBK, battery housing with capacity indication 

Accessories: 

- Spare batteries each 3 baby cells 1.5 V (please only use leakage-proof batteries) 

- Accu set for GKB and GKBK 

- Charger for accu set


1. Convergence bolts, standard model 

with light emitting diode and connection thread G 3/8“. The measuring head is twistable for subsequent 

adjustment. 

Material VA, bolts of steel Ø 20 mm, with galvanic surface protection 

By the connection thread it is possible to measure these bolts with conventional mechanical measuring 

devices. 

- Type GKV 20/250, Ø 20 mm, length 250 mm, standard model 

- Type GKV 20/350, Ø 20 mm, length 350 mm 

- Type GKV 20/100, Ø 20 mm, length 100 mm 

- Type KS, protection cap of PVC, red 

2. Convergence bolts with light emitting diode 

Without connection thread. The measuring head is twistable for subsequent adjustment. 

Material VA, bolts of steel Ø 20 mm, with galvanic surface protection. 

- Type GK 20/250, Ø 20 mm, length 250 mm, standard model 

- Type GK 20/350, Ø 20 mm, length 350 mm 

- Type GK 20/100, Ø 20 mm, length 100 mm 

3. Bolts for current supply 

For each measuring cross section one piece necessary, steel Ø 20 mm, with galvanic surface protection 

and connection thread for current supply. 

- Type GKE 20/250, Ø 20 mm, length 250 mm, standard model 

- Type GKE 20/350, Ø 20 mm, length 350 mm, without figure 

- Type GKE 20/100, Ø 20 mm, length 100 mm, without figure 

- Type KS, protection cap of PVC, red 






CONVERGENCE BOLTS with LIGHT 

EMITTING DIODE 

Type: GK . . . 

Art. No.: 90.10 

Convergence bolts with light emitting diode for construction of e.g. tunnel inner shells and structure surfaces. 

The parts are manufactured of stainless steel and are fixed by means of dowels 6 mm. For connection and 

operation, a two-core cable is needed which is installed like conventional electric installations in protection 

channels, protection tubes or cable clamps. 

For connection of the current supply, type GKBK or GKB, connection parts are available. 

Figure: 

Convergence bolt, type GKA 35, 

manufactured size Ø 25 mm, height 35 mm, 

with 200 mm connection cable 

Figure: 

Bolt for current supply with protection cap, 

type GKE 40, with 200 mm connection cable, 

manufactured size with protection cap 60 mm 

Consoles for measuring instruments 

For measurement of bolts with light emitting diode, 

consoles for the measuring instruments are available. The 

beside figure shows a console for wall fixing and 

adjustable tool bar. 

These fixed mounted consoles enable an accurate 

alignment of the measuring instrument and thus offer 

optimal presuppositions for subsequent measurements. 

Bolt with light emitting diode and built-in battery for 

screwing on standard bolts. The light emitting diode is 

automatically switched on when setting down. 

Type GKLB 235, manufactured size 235 mm


The convergence bolts, type GKV and GK, are installed in the same manner than conventional convergence 

bolts. 

If the bolts are installed before the concreting procedure, the tubings are protected in the concrete. In the 

other case they have to be placed on the concrete surface. 

The bolt for current supply, type GKE, has to be installed at an accessible location for screwing on the 

current supply GKBK. 

Bolt 

GKE 

Coupling 

Bolt 

GKV 

Current supply 

GKBK 

Required assembly material : 

- Connection line 2-core 2 x 0.5 mm 2 

- Insulating joint conector 1.5 –2.5 mm 2 with squeezing 

pincers or wire connector 

- Key for adjustment of luminous heads, Allen key 2.5 mm 

- When placing the tubings on the concrete surface, 

corresponding fixing material for the tubings 

P090.10SB03.vsd 

Assembly: 

Important Please take care that all connection lines of the same colour are connected, e.g. 

+brown to brown and –blue to blue. 

In case of poling the + and –lines the function is disturbed. 

GKE 

GKV 

Following 

........... 

Battery 

+ 

- 

brown 

+ 

blue - 


Type GKBK, with 3 baby cells each 1.5 V. Please only use leakage-protected 

batteries. 

L 

V 

TEST 

V 

of battery by red button 

red range 50-100 % capacity 

L 

black range 0-50 % capacity 

Battery cover 




Version: 22.02.2007/ IG / SP / P090.20.00.00.00.001R01_engl.doc 


CONVERGENCE MEASUREMENT with 

PLASTIC REFLECTORS in TUNNELLING 

Type: GKR 8 / GPR 1 

Art. No.: 90.20 

By modern equipment like electronic tachymeters 

with high accuracies concerning direction and 

displacement measurements with integrated coaxial 

distance meters, surveying engineers are able to 

apply modern measurement methods. 

In tunnelling and caverns, the instruments allow 

more and more convergency measurements with 

sufficient accuracy instead of the mechnical 

procedure with measuring tapes used up to now. 

Main characteristics of the target point 

measurement: 

Use on standard convergence measuring bolts 

Exchange of the triple prisms against plastic 

reflectors possible without any problems 

Repeated use is lowering the costs 

Short installation times 

No disturbance of the construction works 

As fixing device, standard measuring bolts with a 

thread 3/8“ are used which are either conventionally 

injected or subsequently drilled and solidified or are 

welded on the arch. 

By use of a special adapter, universal-mounted 

triple prisms, e. g. Wild GPR1 and the plastic 

reflectors, type GKR 8, which have been developed 

by us, can be applied. 

The measuring center of the triple prism is identical 

with that of the plastic reflector. 

The visualization is done by reflexion with existing 

spot light resp. hand lamp or pocket torch. 

Economic efficiency! 

Target marks of plastic reflectors and also triple 

prisms are removable and can be reassembled 

precisely centrated. By this, it can be removed in 

case of demolition. 

The plastic reflectors can be used again for 

subsequent projects. 

For control purposes, the convergence bolt with 

thread G 3/8“ can also be used for measurement 

with a conventional convergence tape. 

The target point equipment can be used by 

everybody which has a theodolite with integrated 

coaxial distance meter. Accuracy which can be 

achieved is approx. +/-1 mm.

Stand: 22.02.2007 / IG / SP / P090.20.00.00.00.001R01_engl.doc 

Triple prisms are used for first 

measurement and determination 

of real three-dimensional movements. 

Type Weight kg Art. No. 

GPR1 0.2 90.20.01 

Manufactured by company Wild 

Adapter for screwing on 

convergence bolts and attachment 

of a triple prism. 


APH1 0.1 90.20.11 

Plastic reflector with thread G 3/4“ 

on convergence bolt, reflector 

twistable by longitudinal axis and 

rated breaking point. Material: 

Plastics 


GKR8 0.1 90.20.12 

Our standard program offers a large range 

of convergence bolts. 

Type Ø /Length mm Weight kg Art. No. 

KV 

KV 

KV 

KV 

20 / 50 

20 / 100 

20 / 250 

20 / 350 

0,100 

0,200 

0,600 

0,800 

90.01.01.01 

90.01.01.02 

90.01.01.03 

90.01.01.04 

Further models see our standard program 

Convergence measurements 

For determination of convergence data 

both target point markings with triple 

prisms and plastic reflectors are used. 

For zero measurements resp. for 

determination of real three-dimensional 

movements, the triple prisms are 

attached which can be observed from all 

directions. 

For subsequent measurements, when 

only direction observations are 

necessary for determination of twodimensional 

deformation components, 

the triple prisms are exchanged against 

plastic reflectors. With some distance 

meters, also a distance measurement is 

possible. By consideration of an addition 

constant, it will also be executed threedimensional 

The bolts with the plastic reflectors will 

permanently remain on the convergence 

bolts as far as no danger is given by the 

construction works. 

The bolt, type GKR8 is twistable by its 

longitudinal axis and thus can be 

observed from two sides. 

By this presupposition, it is possible, for 

example, to carry out the precedent 

settlement observations in the spherical 

cap during a subsequent disassembling 

of benches starting from a secured and 

stable place in the spherical cap. 

The available target point equipment allows an observation of fixed consoles (the classical optical 

convergence measurement) as well as a measurement starting from free-selectable stations. Therefore, the 

location of the theodolite can be selected according to the actual sight conditions. 

Furthermore, convergence measuring points at the reverse side which will no more feature a deformation in a 

comparative period, can be used as long-distance objectives. 

This solution has been created as a very economical method by the exchangeability of the plastic reflectors 

against the tripl prisms, also if a lot of them is needed. 

Convergence measuring points - Alternative equipment to triple prism, Plastic reflector, type GKR8 

Long-distance targets 

Long-distance targets 

Situtation in case of preceding calotte or 

after executed percussion of calotte 

ca. 300 m 

VisioDocument 







SURVEYING POINTS HYDRAULIC 

PACKER SYSTEM 

Converg. bolt cap 

type KVK 

Convergence bolt 

thread G 3/8" 

to pump 

Grouting line 

Cent. sleeve 

Casing tube 

Grout. tubing 

Thread joint 

Anchor rod 

Packer 

Bolt, movable 

Spring 

Head point 

Screw M12 

Type: HKM . . . 

Art. No.: 90.60 

Special Convergence Bolts HKM with 

Hydraulic Metal Packer Anchor ND 38 

The special convergence bolts with hydraulic metal 

packer anchor are particularly constructed for an 

application in tunnels, in mining as well as for projects 

where standing out convergence bolts are disturbing. 

They are also planned for the case where anchoring 

points - caused by surface changes – must be placed in 

a definite depth of the project. 

A special application range is the mining as particularly in 

sole as well as in butt joint ranges standing out 

convergence bolts are disturbing the operation works. 

A further problem are the subsequent profiling works, 

where conventional convergence bolts have to be 

removed and new measuring points have to be 

established after the works. 

With the hydraulic metal packer convergence bolts the 

anchoring is done in the required depth of the borehole. 

The convergence bolt itself can be removed by a byjonet 

lock mechanism whereby it can be took off after each 

measurement, if necessary. 

A further advantage is that in a convergence measuring 

cross section – after settlement of the measuring 

equipment – the anchor rod can be removed and thus 

only a small quantity of anchor rods is required for the 

measurement application. 

Subsequent profiling works can be carried out without 

problems, as e.g. for milling of the joint supporting 

element and casing tube are manufactured of PVC and 

also can partly be milled without difficulties. Normally, the 

position of the supporting sleeve is scheduled in a 

corresponding depth for such measures. 

Technical Data 

Borehole diameter: 

38 ±2 mm 

Material head point/anchor: 1.4571/1.4305 

(stainless steel) 

Material casing tube: 

PVC tube 

Casing tube diameter: 

Ø A 16 mm, Ø i 12 mm 

Material centering sleeve: 

PVC 

Packer material: 

Copper (Cu) 

Packer length: 

≈ 80 mm 

Total length packer element: 

100 mm 

Total length centering sleeve: 

100 mm 

Convergence bolt connection thread: G 3/8“ 

P090-Spezialkonvergenzbolzen 1R0,0.vsd


Packer 

Plastic resin 

Borehole mouth 

Grout. settlem. rods w. marking 

Rock 

Anchor rod 

A 

B 

C 

Pump 

P090-Spezialkonvergenzbolzen 2R0,0.vsd 

D 

(A) 

(B) 

Borehole depth A = measure B + 70 mm 

Installation depth of mean packer length 

(C) 

(D) 

Distance of supporting sleeve from 

borehole mouth 

Projecting of anchor rod at joint 

90.60 Surveying points hydr. packer system type 

HKM 38/B . . ./C . . ./D . . . (mm) 

Example for ordering: 

90.60.38 / BBB / CCC / DDD 

Projecting of anchor 

rod D = mm 

Distance of supporting sleeve 

from borehole mouth C = mm 

Installation depth of mean packer 

length B = mm 

System borehole diameter =38mm 

Product acronym HKM 

Accessories 

90.01.20.10 Convergence meas. bolt cap for 

attachment to the connection thread 

with ball bearing slewing ring, thread 

G 3/8“ with measuring connection 

90.01.20.15 Attachment ball with inner thread 

G 3/8“ for suspension of a levelling 

batten with suspension fork, ball ∅ 

30 mm 

90.30.60.01 Hand pump SPH with water container 

(15 l) for grouting (up to 300 bars) of 

anchor systems with necessary 

connections 

Diagram for packer grouting 

bar 

200 

100 

Installation 

pressure 

At approx. 100 bars Ø40 

achieved 

Grouting -Ø dependent 

on rock 

Packer is touching (Ø40) 

General 

The hydraulic convergence bolts with packer ND 38 

are delivered completely assembled 

Before placing into the borehole, the packer must 

be pushed together with casing tube and the 

centering sleeve. 

To ensure a cohesion, the injection tubing must be 

secured with adhesive tape to the centering sleeve. 

By means of a grouting line with marking plugged at 

the centering sleeve, the packer can completely be 

placed in the assigned depth. In principle, the unit 

inclusive anchor rod has to be placed into the 

borehole till grouting of the packer. 

By the test pressure of 300 bars, the copper packer 

is pressed to the surface of the head point and is 

adjusting to it. 

Installation and Removal of Anchor Rod 

After grouting of the hydraulic anchor, the anchor 

rod can be removed, if required. 

Removal of the anchor rod is done in such a way 

that the rod is first pressed against the spring and 

then the rod is turned to the left till connection. Now 

the anchor rod can be pulled out from the packer. 

In order to arrest the anchor rod in the packer, it has 

to be turned till the locking peg can be inserted into 

its guidance. Now the anchor rod is first pressed 

against the spring load till connection and then 

turned by 90° in clockwise direction. The spring is 

relieved and the anchor rod is now locked in the 

locking piece. 

In case of larger borehole tolerances, we 

recommend to grout the supporting sleeve with 

plastic resin over the grouting-settlement rods to 

achieve a better contact to the rock. 

40 

0 

Packer is expanding 

36 37 38 39 40 Packer-Ø [mm] 

P090-Spezialkonvergenzbolzen 2R0,0.vsd 




Version: 02.02.2010 / IG / SP / P090.70.01.00.00.001R05_engl.docx 


CONVERGENCE MEASURING DEVICE 

System Behensky / Glötzl 

Practicable, compact model for a site oriented application 

Light model and easily understandable handling 

Supply is done in transport case with test frame 

Optionally equipped with either mechanical dial gauge or digital measuring unit 

Measuring tape available in lengths of 20 and 30 m in standard steel execution 

Proved and successfully used measuring device 

Type: BGKM ... 

Art. No. 90.70..... 

Figure: Convergence measuring device equipped with mechanical dial gauge, digital dial gauge at the left 

Description: 

The convergence measuring device is a precision 

measuring instrument for measurement of 

displacements and deformations. At the construction, 

special measuring bolts are fitted at which the unit for 

measurement is fixed. According to the respective 

measuring job, a series of measuring bolts in different 

versions are availabe. 


Delivery extent: Convergence meas. device, test frame 

and transport case 

Measuring ranges: BGKM 20 1 up to 20 m 

BGKM 30 

1 up to 30 m 

Adjustment of meas. value: 

with analog dial gauge BGKM .A 

with digital dial gauge BGKM .D 

Steel meas. tape: 

Coefficient of longitudinal deformation 

10.2 x 10 -6 m/m°C, perforation 25 mm 

Measuring accuracy: Resolution up to 5 m ± 0.05 mm, 

more than 5 m ± 0.1 mm 

Weight: Measuring device 2.2 kgs 

Weight: Unit with accessories 6.0 kgs 

Figure: 

Convergence meas. device with meas. 

tape and dial gauge, test frame and 

assembly tool in transport case

Version: 02.02.2010 / IG / SP /P090.70.01.00.00.001R05_engl.docx 

Figure: 

Convergence measuring device in test 

frame with analog dial gauge 

Figure: 

Convergenc measuring device in test frame 

with digital dial gauge 

1A 

7 

2A 

6 

9 

4 

8 

5 

3 

2B 

1B 

P090.70_SB_Konvergenzmessgerät.vsd 

Figure at the left: 

(1A) Convergence measuring bolt 

(1B) Convergence measuring bolt 

(2A) Ball joint with connection 

(2B) Coupling with connection 

(3) Meas. tape with perforation 

(4) Locking peg 

(5) Measuring tongue 

(6) Dial gauge mechanical/digital 

(7) Clamping device 

(8) Meas. tape with crank handle 

(9) Housing with tension spring 

and marking of tension 

Application examples: 

Tunnel 

Building 

Excavation 

P090.70_SB_Anwendungsbeispiele.vsd 

Figure below: Standard convergence bolts with protection caps, length 250 mm for embedding in concrete and 50 mm 

for welding of steel galvanized – Measuring connection and thread also available as complete bolts in stainless steel. 

Diagram for determination of temperature influence of a steel measuring tape 

Temperature °C 

T 

+20 

1 m 5 m 10 m 15 m 20 m 30 m 

Calculation example: 

1 st measurement T i, at 15 °C 

2 nd measurement T 0, at 25 °C 

+10 

T = T i - T 0 = -10 °C 

T k = -1.53 mm for a meas. distance 

M W = 15 m 

(see arrows in diagram) 

-6 

-4 

-2 

0 

+2 +4 +6 

Tk 

[mm] 

M k = M W ± T k 

M k = 15.000 mm ± 1.53 mm 

-10 

T 0 = Temperature at zero measurement 

T i = Temperature at any sequence 

measurement 

-20 

P090.70_SB-Anwendungsbeispiel.vsd 

Instead of the calculated temperature 

correction, also the correction value can 

be read from beside diagram.

Version: 02.02.2010 / IG / SP /P090.70.01.00.00.001R05_engl.docx 

General remarks to handling 

Meas. tape value (B W) Value readable at meas. tape in steps of 25 mm at the meas. tongue besides perforation 

Dial gauge value (U W) Reading at the inside circle of scale in mm, at outer circle in 0.1 and 0.01 mm 

Frame value (R W) Measure to be taken at test frame. It corresponds to the distance of the two measuring bolts, 

area-area 

Instrument value (GW (calibration value) 

It is recorded in calibration frame and results from: GW = Tape value – gauge value. 

Correction value (KW) For real value of longitudinal measurement calculation is done: 

KW = Frame value – instr. value 

Meas. Value (MW) Real bolt distance is calculated from: MW = Correction value + instrument value 

Measuring value 1 – measuring value 2 = deformation ± 

Measurement in test frame for determination of calibration value 

- Install test frame and carefully screw it. Please take 

care that all components have the same temperature, if 

possible. 

- Screw out clamping device (7) by turning to the left till 

dial gauge is in zero position.. 

- Totally contract measuring tape (3) with crank handle. 

- Put locking peg (4) with marking longitudinally to 

measuring direction. 

- Screw on convergence measuring device to the bolt 

(1A) with side of ball joint connection. 

- Pull measuring tape with perforation (3) and screw on 

connection part with coupling (2B) at bolt (1B). Keep 

convergence measuring device horizontally to frame. 

- Retract measuring tape with crank handle and put 

locking peg (4) with marking transversally to measuring 

direction. 

- Srew in clamping device (7) by turning to the right till 

the locking peg is locking into position of the 

perforation. For this, slightly press the locking peg in its 

locking direction. The locking point can easily be 

recognized by the following tape perforation which is 

covering with the noticeable thread below the tape. 

- Turn clamping device (2) more to the right and tighten 

measuring tape till the vertical marking is exactly in the 

middle of the cross marking in visible window. Look for 

the max. middle point by turning to the right and left. 

By moving up and down of the convergence 

measuring device you will find the shortest meas. 

tape distance and can correct the optimal position of 

the vertical marking in the cross marking by the clamp 

bolt. 

- Take reading of measuring tape value and dial gauge 

value and note and fix as calibration value. 

- We recommend to repeat this procedure several 

times for exercise and for secure handling by 

adjustment of clamping device with new 

determination of measuring value. For this, cover dial 

gauge with a paper. The repetition accuracy should 

be around ±003 mm. 

- Release clamping device (7) by turning to the left, 

draw locking peg and put it longitudinally to 

measuring direction/measuring tape direction. 

- Put dial gauge in zero direction. 

- Release coupling with connection (2B) from 

convergence bolt (1B) and retract measuring tape 

with crank handle. 

- Release coupling with ball joint (2A) from 

convergence bolt (1A) and put device back into the 

transport case. 

- Then the test measurement is finished. 

Please have attention to the fact that the 

convergence measuring device is a precision 

instrument and has to be operated resp. handled 

very carefully. 

Measurement at construction 

- Screw out clamping device (7) by turning to the left till 

dial gauge is in zero position resp. check it. 

- Put locking peg in longitudinal position to measuring 

direction. Draw coupling with connection (2B) 

somewhat out of the device and fix at measuring bolt 

(1B). 

- Move with the convergence measuring device to the 

opposite bolt and fix ball joint with connection (2A) at 

the convergence bolt (1A). Take care that the 

measuring tape always remains tightened and is not 

polluted. 

- Tighten measuring tape with crank handke and make 

sure that the locking peg (4) with marking is in 

transverse direction to measuring direction. 

- Slightly press on locking peg and draw at the 

measuring tape till it is locking into the next 

perforation. The locking point can easily be 

recognized when the following tape perforation is 

covering with the visible thread below the tape. 

- Turn clamping device (7) somewhat more to the right 

and tighten measuring tape till the vertical marking is 

exactly in the middle of the cross marking in visible 

window. Look for the max. middle point by turning to 

the right and left. By moving up and down of the 

convergence measuring device you will find the 

shortest meas. tape distance and can also correct 

the optimal position of the vertical marking in the 

cross marking by clamp bolt. 

- Take reading of measuring tape value and dial gauge 

value and note and fix as instrument value. 

- It is recommended to repeat measurement twice and 

to note the means value as measured value. 

- If higher temperature differences can be foreseen 

between measurements, the temperature has to be 

recorded and calculated according to the measuring 

accuracy, if required. 

- Release clamping device (7) by turning to the left and 

additionally put dial gauge in zero position. 

- Draw locking peg and put it longitudinally to 

measuring direction/measuring tape direction. 

- Release coupling with connection (2A) from 

convergence bolt (1A) and retract measuring tape 

with crank handle. 

- Release coupling with ball joint (2B) from 

convergence bolt (1B) and put device back into 

transport case. 

The convergence measuring device is a precision 

instrument and has to be protected against 

pollution and to be operated resp. handled very 

carefully.

Version: 02.02.2010 / IG / SP / P090.70.01.00.00.001R05_engl.docx 

Measuring records for convergence measurements (pattern for copying) 

Convergence measuring MP 90.01.03 

Site: 

Measuring distance: 

Person in charge: Carryover: Control remark Code: Measuring cross Page No: 

section: 

Resp. 

No: Date Time 

(1) 

(3) 

(4) 

(5) 

T T T k Reading values in Situ in mm K W M W M K M k 

(2) 

[°C] [°C] [mm] B W U W G WB [mm] [mm] [mm] [mm] 

G (2) WB = B W - U W T i Sequence measuring T 0 Zero measuring M (5) K = M W + T k 

Example 22 0,0 0,000 15.025 22,50 15.002,50 497 15.499,50 15.499,50 0,00 

Example 12 -10,0 -1,530 15.025 21,40 15.003,60 497 15.500,60 15.499,07 0,43 

Calibration Measuring at construction Temperature correction Evalution 

R W Frame value [mm] B W Mesasuring Tape value [mm] T = 10,2 x 10 -6 m/m°C T > 0 = +T k Measuring length absolute 

G WK Instrumation value calibration U W Dial gauge value [mm] T k Temperature correction [mm] M W Measuring length absolute [mm] 

frame [mm] T (1) k = G WB x T x T M (4) W = G WB + K W 

K W Correction value [mm] G WB Instrument value at T (1) k = G WB x 0,0000102 x T M k Measuring length temperature 

K (3) W = R W - G WK construction [mm] T = T i-T 0 compensated [mm] 

Order model: (by Fax) to Glötzl, Gesellschaft für Baumesstechnik mbH Fax No. +49 721 51 66 30 

We ask for delivery of below ticked articles to: 

Company: .............................................................. Art. No.: .............................................................................. 

Name: .................................................................... Department: ...................................................................... 

Country: ................................................................ Postal code: .......................... City: .................................. 

Street: .................................................................... Phone / Fax No.: ................................................................ 

Signature: .............................................................. Email: ................................................................................ 

Please request in advance the actual prices by phone or Fax qutotation. 

Availabe convergence measuring devices 

Please tick when ordering 

Art-No. Description Meas. tape/kind of steel Analogue/digital Type Remarks 

• 90.70.01 Convergence meas. device 20 m steel analog BGKM 20 A 

• 90.70.03 Convergence meas. device 30 m steel analog BGKM 30 A 

• 90.70.11 Convergence meas. device 20 m steel digital BGKM 20 A 

• 90.70.13 Convergence meas. device 30 m steel digital BGKM 30 A 

Spare parts: 

• 90.70.50.01 Analog dial gauge analog 0 - 25 mm BGKM AM 

• 90.70.50.02 Digital dial gauge digital 0 - 25 mm BGKM AI 

• 90.70.50.11 Spare meas. tape 20 m steel BGKM M20 

• 90.70.50.12 Spare meas. tape 30 m steel BGKM M30 







MEASURING ANCHORS • CONVERGENCE BOLTS 

• SURVEYING POINTS • EXTENSOMETERS 

Type: S . . . 

Art. No: 92. . . 

Based on the system of the SWELLEX anchors of Atlas Copco, Glötzl developed a new instrumentation 

technique which includes the advantages of this anchor system. The basic principle is a folded tube which 

has been modified by the company Glötzl in regard to the measuring and installation equipment being of 

great importance for tunnel work. 

Main advantages compared with conventional instruments known up to now: 

• Immediate availability resp. measuring readiness after installation 

• Uncomplicated installation in all measuring positions and directions 

• Shortest installation times (only some minutes) without mortar or plastics 

• Standard boreholes, diameters according to instrument 32 - 52 mm 

Instrumentation of a NATM measuring cross section for displacement measurements 

A 

D 

C 

D 

D 

A 

A 

C 

Convergence 

measurement 

C 

C 

Convergence 

measurement 

C 

Sole 

P092BG01.vsd 

B 

A - Meas. anchors with load cells B - Base measuring points 

C - Hydraulic convergence bolts for D - Extensometers with hydraulic 

mechanical and geodetic measurement 

anchor points in single boreholes


Measuring Anchor 

SMA 

P092BG01.vsd 

Meas. 

anchor 

Clearance 

tube 

Meas. head 

For the use of the SWELLEX anchor system in 

tunnelling, we have developed a measuring anchor 

for measurement-technical support. 

It consists of a standard SWELLEX anchor which is 

alterated by Glötzl to a measuring anchor. This 

means that traction rods are mounted inside; the 

longitudinal deformation of these rods are 

measured at the head. 

The anchor models are available according to the 

anchor types SWELLEX and SUPER-SWELLEX in 

standard lengths of 2, 3, 4, 6 und 9 m. 

Further lengths on request. 

The system can be completed by equipment of the 

instruments with load cells. 

Model 

Load 

[kN] 

L 

[m] 

Drilling 

Ø [mm] 

Weight 

[kg] 

Article 

No.: 

SMA 11/2 110 2 4 92.10.01.02 

SMA 11/3 110 3 32 6 92.10.01.03 

SMA 11/4 110 4 up to 8 92.10.01.04 

SMA 11/6 110 6 39 12 92.10.01.06 

SMA 11/9 110 9 18 92.10.01.09 

SMA 22/2 220 2 8 92.10.02.02 

SMA 22/3 220 3 43 12 92.10.02.03 

SMA 22/4 220 4 up to 16 92.10.02.04 

SMA 22/6 220 6 52 24 92.10.02.06 

SMA 22/9 220 9 

36 92.10.02.09 

Non-fixed tubes 

SMA11/F.5 0.5 34 - 39 1 92.10.50.01 

SMA 22/F.5 0.5 46 - 52 2 92.10.50.02 

Anchor boring 

Mortar bed 


Anchor nut 

SWELLEX ANCHOR 

Anchor load cells with attachment and clamping nut 

for SWELLEX anchors, mechanical type with 

manometer or electric output signal: 

Clearance tube 

Figure: Anchor load cell 

Dial gauge 

Measuring head 

Anchor load cell 

Manometer with 

protection cover 

Mechanical 

type w. mano. 

Load 

[kN] 

Anchor 

Ø [mm] 

Weight 

[kg] 

Article 

TK100 A45 M1 100 45 5 40.10.01.01 

TK250 A55 M2.5 250 55 5 40.10.01.02 

Electrical type 4 - 20 mA 

TK100 A45 E 120 45 5 40.10.02.01 

TK250 A55 E 250 55 5 40.10.02.02 

Attachment for load cell TK100 6 40.10.10.01 

Attachment for load cell TK250 6 40.10.10.02 

Measuring equipment for mechanical measurement 

of measuring anchors with dial gauge or 

digital display: 

Model with 

Type 

Dial g. 

[mm] 

Weight 

[kg] 

Article 

No.: 

Dial gauge ASAM30 30 1.2 92.10.50.10 

Digital display ASAD30 30 1.2 92.10.50.11 

Conception of the SWELLEX system 

not grouted 

grouted 

The anchor part consists of a folded tube which is 

widened by water pressure after installation in the 

borehole. The outer casing is adapted to the rock 

and is deformed acc. to the unevennesses. Thus, a 

strong and permanent adhesion with the rock is 

granted. 

The main advantage compared with methods 

known up to now is that it can be used immediately 

and without any cement or plastics and also without 

tension or beating works.

CONVERGENCE BOLTS 


SKM 

Measuring cross section 

with convergence bolts 

Ø 26,5 

40 40 

Ø 30 

Protection cap 

Anchor part 

AL 

Clearance 

P092BG01.vsd 

BL 

FL 

Meas. head 

P092BG01.vsd 

Ridge 

AL 

BL 

Stand. installation 

P092BG01.vsd 

FL 

Bolts with clearance 

in concrete 

Ball 

attachment 

P092BG01.vsd 

Hand pump SPH 

Accessories see program for standard convergence bolts 

Installation of convergence bolts with hydraulic anchor immediately after 

drilling procedure and thus immediate readiness to work already before 

spraying shotcrete. 

Anchoring of the bolts is done in the rock; therefore the rock movements 

can exactly be recorded. 

By placing a plastic tube over the anchor in the area of shotcrete, a 

clearance in concrete can be achieved. 

The bolts can be used countersunk, injected resp. installed and thus 

are best possible protected against damage during blasting and advance 

works. 

Model 

Hand pump SPH with water container (5 l ) for 

grouting of anchor systems with required 

connections 

- Pressure range max. 300 bars, weight 12 kgs 

Length BL 

[mm] 

FL 

[mm] 

AL 

[mm] 

Drilling ø 

[mm] 

Weight 

[kg] 

Article 

No.: 

SKM 32/200 600 200 400 1 90.30.01.01 

SKM 32/250 650 250 400 

32 

1.1 90.30.01.02 

up to 

SKM 32/300 700 300 400 39 1.2 90.30.01.03 

SKM 32/350 750 350 400 

1.3 90.30.01.04 

SKM 43/200 600 200 400 2 90.30.11.01 

SKM 43/250 650 250 400 

43 

2.2 90.30.11.02 

up to 

SKM 43/300 700 300 400 52 2.4 90.30.11.03 

SKM 43/300 750 350 400 

2.6 90.30.11.04 

For clearance in concrete area, please add article No. with .1 

Protection cap SKS 32 of PVC 0.1 90.30.50.01 

Protection cap SKS 43 of PVC 0.1 90.30.50.02 

. Bolt elongations . Ball top attachm. . Meas. rod suspension 

. Ridge tackle . Reflectors . Luminous diode tops 

. Special models acc. to client’s request 

Electric motor pump SPM 

Electric motor pump with separate water container 

for grouting of anchor systems with required 

connections 

- Connection 230 V, 50 Hz, 2.2 kW 

- Pressure max. 400 bars 

- max. 2.2 l/min. 

- Weight 50 kgs 

Load diagram for SUPER-SWELLEX 

[bar] 

200 

100 

0 

F A V 

Approx. values: 

F - Filling of anchor part 

A - Widening of anchor 

till reaching the rock 

V - Grouting at the rock 

Installation instructions: 

Push the anchor part in borehole to the requested 

position. Install the anchor part via special connection 

by means of a hand or motor pump. 

Required pressure see diagram opposite. After 

reaching the final pressure, there is a secured and 

high-loadable compound by the own stiffness of the 

expanded steel tube and the contact to the 

unevennesses of the rock.


Surveying Points 

SVM 

SK 

SR 

0,1 m 

Frost-resistant surveying points can be produced with the 

hydraulic anchor system quickly, secured and immediately 

ready for use. 

In order to keep away the surface movement from anchor 

part, a protection cover of plastic is fitted in the upper part 

of the system. 

FL 

BL 

AL 

Model L=BL FL AL Drill Ø Weight Article 

mm] [mm] [mm] [mm] [kg] No.: 

SVM 32/1000 1000 500 500 34-39 1,5 90.40.01 

SVM 32/1300 1200 700 500 34-39 1,9 90.40.02 

SVM 43/1000 1000 500 500 46-52 2,5 90.40.11 

SVM 43/1300 1200 700 500 46-52 3,3 90.40.12 

Street protection cap DIN 4055 60.01.04.31 

Extensometer- Hydraulic Anchor 

AL 

FL 

BL 

Glass fibre rod extensometer GKSE 16 

BL = Bolt length AL = Anchor length FL = Clear. length 

SR = Protection cap SK = Street protection cap 

SEA 

Hydraulic anchors in connection with the Glötzl glass fibre 

rod extensometer GKSE 16 represent the best possible 

instrumentation for an installation on site with immediate 

measuring standby. This especially applies in case of 

severe water entrance and a rock with a high degree of 

deep fissures where conventional cementations will be 

complicated. 

For very aggressive water up to a pH-value of 14, coated 

anchors are availabe as special models. 

Model L.=BL FL AL Drill. ø Weight Article 

[mm] [mm] [mm] [mm] [kg] No.: 

SEA 32/700 700 200 300 32-39 1,2 60.06.01 

SEA 32/900 900 200 500 32-39 2,4 60.06.02 

SEA 43/700 700 200 300 43-52 1,4 60.06.11 

SEA 43/900 900 200 500 43-52 2,8 60.06.12 

Tunnel profile 

Head point installed 

or mortared 

The hydraulic anchor is screwed on the 

completely assembled extensometer. Push the 

complete unit into the borehole and grout the 

anchor by means of water. 

Foam material 

Centering pcs. 

Dial gauge 

Pump 

Hydraulic Anchor 

SEA 

- Immediate effectiveness 

- No mortar or injection material 

- Small dimensions 

- Installation in standard anchor borings 

Remarks: 

SWELLEX is a registrated trade mark of the 

company ATLAS-COPCO. The products of Glötzl 

on the basis of the SWELLEX system are 

individual units which are manufactured on the 

Glass Fibre Rod Extensom. GKSE 

- Delivered assembled ready for use 

- Small dimensions and light weight 

- Each length can be installed in smallest space 

- Factory dimension 1 m winding diameter 

basic material of the SWELLEX anchors. Any 

liability for the instruments described in this leaflet 

is hold by the company Glötzl Gesellschaft für 

Baumeßtechnik mbH. 






CONVERGENCE MEASURING BOLTS 

for Measurement with Measuring Tape 

Type: KV . . . 

Art. No.: 90.01 

Convergence bolts for measurement with measuring tape, thread G 3/8“ and measuring connection, of 

ribbed steel Ø 20 mm, with galvanic surface protection 

Art. No.: 90.01.01.01 Type KV 20/ 50 Length 50 mm, for welding on 

Art. No.: 90.01.01.02 Type KV 20/100 Length 100 mm 

Art. No.: 90.01.01.03 Type KV 20/250 Length 250 mm 

Art. No.: 90.01.01.04 Type KV 20/350 Length 350 mm, standard model 

Convergence bolts with thread and measuring connection, of ribbed steel, material stainless steel 

Art. No.: 90.01.02.01 Type KV 20/ 50 V Length 50 mm, for welding on 

Art. No.: 90.01.02.02 Type KV 20/100 V Length 100 mm 

Art. No.: 90.01.02.03 Type KV 20/250 V Length 250 mm 

Art. No.: 90.01.02.04 Type KV 20/350 V Length 350 mm, standard model 

Protection cap of PVC red for thread and 

measuring connection, type KS 

Protection cap for thread and measuring 

connection, for immersed installation of 

measuring bolt, type KS 

Elongation for convergence bolt of ribbed steel Ø 20 mm, with galvanic surface protection 

Art. No.: 90.10.01.01 Type VK 100 Length 100 mm 



Elongation with thread and measuring connection, of material VA 

Art. No.: 90.11.01.01 Type VKV 100 Length 100 mm 

Art. No.: 90.11.01.02 Type VKV 200 Length 200 mm 

Art. No.: 90.11.01.03 Type VKV 300 Length 300 mm


Convergence measuring bolts for measuring battens are available in different models and are equipped 

with an additional facility for suspension of a measuring batten. 

For model with ball connection, the measuring bolt is equipped with a ball machined angle which allows the 

centering of the measuring batten with suspension fork. Herewith, the measuring batten is centering itself 

vertically. 

Furthermore, the bolt is equipped with a thread G 3/8“ with measuring connection for measurement with the 

measuring tape. 

Thread G 3/8“ Ball machined angle Ribbed steel Ø 25 mm, with 

with meas. connection 

galvanic surface protection 

Art. No.: 90.01.20.01 Type KVK 25/100 Length 100 mm 



Art. No.: 90.01.70.01 Type KS Protection cap of PVC for meas. connection 

Suspension fork with plate strip for fixing at a 

levelling batten 

Attachment for convergence measuring bolt, 

material VA, for attachment at convergence bolts, 

type KV, ball machined angle and thread with 

measuring connection 

Art. No.: 90.01.30.01 Type GST 50 

Meas. batten 

50 mm 

Art. No.: 90.01.30.02 Type GS 86 ditto 86 mm 

Art. No.: 90.01.20.10 

Art. No.: 90.01.20.15 

Type KVK 

Type KVA 

With ball and thread 

connection 

Ball attachment with 

inner thread G 3/8“ 

Elongation for convergence bolt with ball machined angle 

For geodetic measurement resp. for suspension of a measuring batten with suspension fork, convergence 

bolt elongations are available with ball machined angle. 

Art. No.: 90.01.40.01 Type VKK 100 Length 100 mm 

Art. No.: 90.01.40.02 Type VKK 300 Length 300 mm 

Measuring bolts of ribbed steel, with attached ball of stainless steel, for suspension of a levelling rod 

with suspension fork for geodetic measurement of distance changes 

Art. No.: 90.01.50.01 Type MKV 20/250 Length 250 mm 

Art. No.: 90.01.50.02 Type MKV 20/350 Length 350 mm


Convergence bolts with measuring plates are installed in tunnel roof ridges. Besides the connection 

thread for measurement of convergences with measuring tape, the bolt has a levelling plate with ball-shaped 

machined angle for suspension of a surveyor’s wooden rod equipped with a ball stud. 

The bolt is made of ribbed steel Ø 25 mm, thread G 3/8“, measuring connection, with galvanic surface 

protection. 

Convergence bolt type KVM 25/350 Ø 25 mm, length 350 mm 

Measuring plate type STZ for suspension of a levelling rod 

Protection cap type STS without figure 

Ball stud type KST 50 with plate strip for attachment at a levelling rod, width 50 mm 

Ball stud type KST 86 with plate strip for attachment at a meas. plate, width 86 mm 

Protection cap type KS of PVC red, for thread and measuring connection 

Accessories 

Surveyor’s wooden rods in different models, complete with corresponding suspension equipment 

Special bolts 

Figure: Universal bolt type KVK/SF 

Figure: Universal bolt type KVK/O 

Art. No.: 90.01.80.01 Type KVK/SF Universal bolt with slot and hair cross, thread M18 

Art. No.: 90.01.80.02 Type KVK/O Universal bolt with slot and hair cross, thread M18


Suspension device for 

measurement at tunnel 

roof ridges with hinged 

levelling plate. 

The suspension device 

can simultaneously be 

used as a convergence 

measuring bolt. 

Mort. 

≈ 5 cm 

≈ 30 cm 

Ø 24 mm 

Converg. 

meas. bolt 

Suspension 

plate 

Levell. rod

Measuring Device - GLÖTZL Gesellschaft für Baumesstechnik mbH

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