UMS Product Catalog Release 3.0

Soil 

Water 

Plants 

Climate 

Release 3.3

About us 

UMS, Your partner for environmental monitoring 

1986 - the idea of the T5 Miniature-Tensiometer has been developed. 

The GSF Research Centre in Munich demanded for a small, precise and reliable 

Tensiometer for the controlled irrigation of experimental potted plants which 

partly were exposed to defined water stress. 

The first UMS product was born - and still is popular. 

Since 1991 UMS offers the complete equipment for environmental measuring 

systems - with UMS made sensor technique, competence and experience in 

planning of individual solutions and development of innovative products. 

About us 

Our team of engineers and technicians 

takes care of the development 

and production of environmental 

instrumentation. 

UMS is located in Munich, not far from 

leading universities and research 

centres in Southern Germany and 

Austria. With some of them, UMS 

has not only longtime relations but 

close cooperations. 

UMS quality 

UMS is certified by the DIN EN 

ISO 9001:2000 quality standard 

All UMS products passed the CE 

conformity test procedure 

Monitoring systems pass a one 

week test run before delivery 

Consulting and system design 

It is our aim to find the right product 

and solution in accordance with your 

application - for the best possible 

return of time and funds. 

Our workshops and trainings impart 

knowledge on products and handling 

and are a platform to share ideas and 

experiences. 

Title-page: T5 miniature Tensiometer 

Production 

Tensiometers, pore water samplers 

and other products are manufactured 

in our own well-equipped workshop. 

This assures a constant quality and 

a certain flexibility on individual 

designs. 

UMS is member of the following 

committees: 

DBG German Soil Scientific Society 

ÖBG Austrian Soil Scientific Society 

ATV-DVWK 

Lysimeter Group 

Scientific board of the 

Lysimeter Group 

German standardization committee 

(DIN) NAW I 2/UA 5/AK4 for the 

standardization of pore water 

sampling and sampling methods 

K-net - Austrian Network of Water 

Competence 

Development and cooperations 

According to your requirements and 

intentions we design customized 

sensors, user interfaces and network 

solutions. 

In close cooperation with our research 

partners innovative components 

are developed and turned into new 

products. 

Service and maintenance 

Our technicians and engineers 

are available for the long-term 

maintenance of your systems. 

Our repair service will look for 

quickest accomplishment to keep 

any data loss as small as possible. 

Our calibration service grants many 

years of accurate measurements. 

It is our aim to support you in your tasks with best possible measurement solutions. 

Benefit from our engineering competence and receive complete solutions from one hand! 

2 UMS GmbH • Gmunder Str. 37 • 81379 Muenchen • Germany • Tel.: +49 (0) 89-12 66 52-0 • Fax: +49 (0) 89-12 66 52-20 • www.ums-muc.de

Telephone 

Telephone: +49-89-12 66 52-0 

Our office hours are Monday through 

Friday 8 am to 6 pm CET / CEST 

Fax 

Fax: +49-89-12 66 52-20 

Email 

Please find your contact person 

listed on last pages of this catalogue 

Distributors 

Please find a list of our contract 

distributors on the last page of this 

catalogue 

Webpage 

Round-the-clock information on: 

www.ums-muc.de 

Newsletter 

Do you wish to receive up-to-date 

information regularly? Our free 

periodically issued newsletter includes: 

< News at UMS 

< Dates for workshops and tradeshows 

< Introduction of new products 

< Summaries about interesting projects 

and solutions 

If yes, please subscribe our newsletter 

under: www.ums-muc.de/subscribe 

Content 

Scales 

Scales & scientific levels for hydrologic research 

Soil has a key role for many 

environmental research studies 

because of its multiple functions, 

especially for soil water balance, 

water quality, food production, 

forestry, climate and conservation of 

the ecosystem. 

Scale 1: Soil physical laboratory 

scale 

Measuring and modelling of soil 

and water specific functions and 

characteristics with soil sample rings 

and miniature lysimeters. 

Retention curves 

Conductivity 

Sensor calibration 

Bio remediation 

Microcosm scale 

Soils are different, heterogeneous 

and highly complex. Therefore, it is 

a challenge to extrapolate laboratory 

results into the field, or punctiform 

results into areas, or calibrating 

models to expanded regions. 

Scale 2: Hydrologic laboratory 

scale 

Determination of hydraulic 

coherences with soil monoliths: 

Flowability 

Substance transport 

Sorption and buffer behaviour 

Research methodology and 

instrumentation needs to be aligned 

to the soil as well as to the objective 

target. UMS offers know-how, 

sensors and instrumentation for your 

research tasks. 

Scale 3: Lysimeter station 

Studies on undisturbed soil monoliths 

with defined surface and volume 

under real climatic conditions and 

vegetation 

Water balance 

Leachate 

Ground water recharge cap. 

Substance transport 

Metabolism research 

Cultivation methods 

Climatic research 

Energy balance 

Model calibration 

Lysimeter stations equipped by 

UMS are described on the following 

pages. 

UMS miniature Lysimeter 

GSF: soil monolith experiment 

GSF: Lysimeter basement 

Scale 4: In-the-field measuring 

sites 

Field studies to describe in situ 

retention curves and water fluxes or 

as input data for groundwater recharge 

models, leachate determination and 

soil water sampling. 

Scale 5: Modelling for process descriptions in catchment areas and 

regions 

Models for water and energy balance and substance transport as a tool for 

status description, simulations or forecasts. Useful as a decision support tool 

for cultivation and management of water resources. Models are calibrated with 

precise measurements in the laboratory or in the field. 

Austrian Hydrographic Service: 

In-the-field soil water station 


Beside sensors and scientific instrumentation we offer complete measuring solutions - 

fitted to your individual tasks. 

Laboratory solutions 

This laboratory setup for soil retention 

curves, flux determination, pore 

water sampling, etc. consists of a 

weighable small lysimeter KL2 with 

which monolithic soil pillars can be 

excavated. 

A standard setup would have sensors 

in different soil levels, like miniature 

Tensiometers T5 for matrix potential 

and FD-probes for volumetric 

water content measurements, 

temperature probes, miniature pore 

water samplers, a high-resolution 

scale and a ceramic bottom plate for 

leachate sampling or for generating a 

simulated tension. 

Customized solutions 

In 1988 UMS installed a tension 

controlled scientific irrigation 

system for plant specific soil water 

conditioning. Date, time, duration of 

irrigation and the matrix potential are 

monitored on 64 channels. 

This customized solution is operating 

now for 18 years! 

Extreme cases 

In the field or in situ measuring sites 

normally need individual design in 

accordance to site and soil specific 

situation and scientific tasks. 

This system in Northern France 

for example measures volumetric 

water content, water tension and 

temperature in a chalk soil down to 

a depth of 10 meters. But the record 

is still held by 20 meter Tensiometers 

installed in the Oman desert. 

Systems & Solutions 

Field monitoring stations 

Most of all outdoor stations need to 

be resistant against environmental 

influences, including lightning or 

nibbling rodents. Yet, they should 

still be user-friendly regarding the 

installation as well as servicing, power 

supply and data read-out. 

To ensure this, UMS stations are well 

designed, pre-assembled and pass a 

one week test run before delivery. 

GSM communication 

A solar powered station with GSM 

data transmission is the optimum in 

service friendliness. At this station 

located at the Zurich lake the status 

is checked, data is downloaded 

and configurations are changed 

conveniently from the operator’s 

office. But please consider a proper 

anti-theft and vandalism protection. 

Service friendly solutions 

This combined soil and weather 

monitoring station is equipped with 

about 50 different sensors on a 10 

meter mast. You think you need a 

climber to service the sensors? 

This UMS designed mast can simply 

be tilted by removing a single bolt 

for easy servicing and calibration 

routines. 

Let us know your requirements and ask for a quotation for a complete solution 

All systems pass a test run and are pre-assembled as far as wished 

Stations are supplied with handbook and documentation in English language 

UMS GmbH • Gmunder Str. 37 • 81379 Muenchen • Germany • Tel.: +49 (0) 89-12 66 52-0 • Fax: +49 (0) 89-12 66 52-20 • www.ums-muc.de 

5

Tensiometer 

Tensiometers for direct measurement of the soil water tension 

All water movements in soils are 

directly depending on the soil water 

tension, as water - in soils as well as 

on surface - will always move from 

areas of higher potential to areas of 

lower potential. 

Main water movements occur at low 

tensions which only Tensiometers 

measure directly and precisely. 

Naturally embedded soils are 

heterogeneous. Thus, soil water 

processes are not only affected by 

precipitation and evapotranspiration, 

but also by texture, grain size, cracks, 

compactness, aggregation, roots and 

cavities. Tensiometer measurements 

are not directly influenced by the soil 

heterogeneity. 

T1 T3 T4 T5 T8 TS1 

Shaft Sensor 

How does it work? 

Soil water and Tensiometer water 

have contact through the porous 

ceramic as a wetted porous ceramic 

creates an ideal pore/water interface. 

The soil water tension is directly 

conducted to the pressure transducer 

which offers a continuous signal. The 

atmospheric reference pressure is 

provided through a membrane on the 

cable, a distinctive patented method. 

pF / wc - relation curve 

Benefits 

Tensiometers are functional up to 

85 kPa, correspondingly pF 2.9 

The unique T5x can reach 200 kPa 

Tensiometers T1, T3, T4 and T5 

have a common calibration: 

0 kPa = 0 mV to -85 kPa= -85 mV 

Tensiometers T8 and TS1 have an 

amplified linear signal output 

Virtually unbreakable homogenous 

sinter ceramic cup on T4, T8 

Contact Tensiometers 

Spot readings with the INFIELD7b 

handheld 

Applications 

Spot readings: 

T1 or T3 

Low-cost-applications: 

T1 or T3 

Irrigation control: 

T3 

Environmental monitoring: 

T4, T8 or TS1 

Lysimeter sites: 

T4, T8 or TS1 

Punctiform, pot or laboratory 

measurements: T5 

Limits 

T1, T3 and T5 must be protected 

from frost 

Dry soil draws off the water 

Measuring site at the Zurich airport 

Georg von Unold 

Tel.: +49 (0) 89 / 12 66 52 - 15 

eMail: gvu@ums-muc.de More than 10 000 Tensiometers sold worldwide - 

a sign of confidence for UMS quality and tensiometry know-how 


T5 

129 

Active 

Time 

HYST: 5hPa 

With the new modular bus concept 

tensioLINK it is possible to establish a 

flexible and effective measuring site. 

The modular concept allows an easy 

extension or optimal adaption of the 

system to many measuring tasks. 

Benefits 

Easy installation by networking 

Digital data transfer over large 

distances 

New sensor functions e.g. 

integrated data logger 

Simple transmission protocol 

allows integration of non-system 

data acquisition devices 

Supported devices 

Infield7b 

TS1 

new T8 (Version 2005) 

SIS (8-pin cable version) 

VS-twin/-single and VS-pro 

... more to come 

Interference safe transmission 

The newest generation of products 

from UMS are fitted to the serial 

measuring bus tensioLINK. 

tensioLINK is based on the RS485 

standard. It is a 2-wire bus for data 

transmission over several joints 

over large distances. The differential 

transmission eliminates interferences 

to assure safe communication over 

large distances. 

Modular concept for easy handling and flexible extensibility 

Easy data download also with nonsystem 


To make sensors compatible to nonsystem 


the tensioLINK protocol can be 

programmed with simple ASCII 

instructions. Thus, e. g. data loggers 

with a RS485 sensor interface can 

connect to and read out numerous 

sensors without the need of 

expensive analogue inputs. 

Flexibility by networking 

To implement new functions into 

sensors or devices and still be 

flexible in cabling an analogue cable 

transmission is not sufficient any 

more. A serial interface is required for 

digital communication with sensors. 

+538hPa 

Soll: 540hPa 

tensioLINK 

Maximum compatibility 

To guarantee the maximum 

compatibility of our products all 

tensioLINK sensors and instruments 

still have analogue outputs in addition. 

Thus, they can be connected to any 

standard measuring system which 

requires analogue inputs. 

New sensor functions 

The serial interface offers new 

possibilities like storage of readings 

in the sensor itself (data logger), 

calibration, configuration of controlling 

functions etc. And of course the 

accurate error free transfer of readings 

without analogue cabling. 

Tensiometer 

The newest generation of UMS 

sensors and instruments are fitted 

with the tensioLINK bus (see above). 

To connect them to a PC or Laptop a 

USB adapter cable and the Windows 

software tensioVIEW is available. The 

software recognizes all instruments 

connected to the bus. 

tensioVIEW is used for sensor 

configuration and data read-out. Edit 

for example the set value and current 

value of a VS vacuum station, further 

parameters and the stored readings 

of the connected Tensiometer. 

For laboratory applications no 

additional tools are required beside 

tensioLINK and tensioVIEW: 

the sensor readings are directly 

downloaded to the computer. 

tensioVIEW 

The tensioLINK USB converter is 

used for direct connection of sensors 

and devices with serial tensioLINK 

interface to a PC. 

Benefits 

Cost-effective laboratory application 

with a PC used as a logger 

Direct connection of tensioLINK 

instruments like TS1, T8-2005, SIS, 

Infield7, VS 

Easy sensor configuration and data 

read-out with the free tensioVIEW 

software 

USB PC adapter 

Item 

Art.no. 

USB adapter tL-USB 

USB adapter mini* tL-USB-mini 

* Only for Infield7 and VS 


7

Tensiometer 

T1 

Sensor head T1K 

Measuring range: +10 kPa ... -70 kPa 

Output signal: +10 mV ... -70 mV 

Accuracy: ±0.5 kPa 

Supply: typ. 10.6 VDC / 1.3 mA 

Cable: 

1.5 m; 4-pin plug M12 

Shaft T1S 

Shaft: 

Ø 20 mm; acrylic 

Shaft lengths: 10 ... 200 cm 

Porous ceramic: Ø 20 mm; length 60 mm 

Bubble point: 1 bar 

Septum: Silicone 

For spot readings of the water 

tension: Any number of Tensiometer 

shafts T1S are installed in the ground, 

filled with water and plugged with the 

septum. With only one sensor head 

T1K and one INFIELD7b handheld unit 

all shafts can be read out one by one. 

The INFIELD compensates the vertical 

water column and displays and stores 

the readings in kPa. 

Applications 

Spot readings of soil water 

tension 

Benefits 

Low-cost solution for numerous 

measuring points 

Easy handling, filling status obvious 

by transparent shaft 

Limits 

Not for horizontal installation 

Frost free usage only 

Not for dry soils 

Accuracy not as good as T3 

Water column in shaft reduces the 

measuring range: 10 cm = -1 kPa 

Item 

T1 sensor head 

T1 shaft 

Art.no. 

T1K-20 

T1S-... 

Indicate required shaft lengths on an 

order, e. g.40 cm = T1S-40 

T3 

The T3 is of great advantage especially 

for rough field conditions and when 

easy handling is preferred. 

For example as a control sensor 

for irrigation systems. The fill level 

can easily be checked through the 

transparent shaft. 

Applications 

In-the-field or in greenhouses 

Water balance studies 

Control sensor for irrigation 

Monitoring studies with data 

logger, e. g. the DL6-te 

Spot readings in combination with 

the INFIELD7b 

Benefits 

Easy handling 

Solid construction 

Balanced signals 




Supply: 

typ. 10.6 VDC / 1.3 mA 

Shaft: 





Cable: 


Limits 

Not for horizontal installation 

Frost free usage only 


Water column in shaft reduces the 

measuring range: 10 cm = -1 kPa 

Connecting cables CC-4 on page 17 

Item 

T3 

Art.no. 

T3-... 

Indicate required shaft length on an 

order, e. g. 40 cm = T3-40 


The T4 precision Tensiometer - 

developed for outdoor monitoring 

projects. Only the ceramic cup is 

filled with water for highest accuracy 

and year-round operation. 

Optionally with external refilling 

The model T4e with external refilling 

can be refilled or emptied without 

removing it from the soil. 

Applications 

Field measurements 

Water balance, leaching, transport 

studies, model calibration 

Ecological impact studies 

Agricultural or forestal studies 

In-situ retention curves 

Data logger applications 


T4 

Tensiometer 

Item 

T4 

T4 with external 

refilling 

Art.no. 

T4-... 

T4e-... 


order, e. g. 40 cm = T4-40 

Benefits 

Reliable outdoor tensiometer 


Horizontal or vertical installation in 

any orientation 

Year-round operation when 

installed deeper than 30 cm 

Limits 


Connecting cables CC-4 on page 17. 




Supply: typ. 10.6 VDC / 1.3 mA 

Shaft: 



Shaft extensions: Possible on request 



Cable ex corpus: 1,5 m; 4-pin plug M12 

The T8 is characterised by maximum 

user comfort and was developed for 

long term monitoring projects. 

Applications 

Field measurements 

Water balance, leaching, transport 

studies, model calibration 


Agricultural or forestal studies 

In-situ retention curves 

Data logger applications 


T8 

Item 

T8 

Art.no. 

T8-... 


order, e. g. 40 cm = T8-40 

Benefits 

Integrated amplifier 

Integrated soil temperature sensor 

Integrated fill level indicator 

Integrated external refilling: refill or 

empty the cup through capillary 

tubes without removing the T8 

from the soil 


Limits 


Connecting cables CC-8 on page 17 


Output signal: 0 mV ... +2000 mV 


Supply: 

6 ... 20 VDC / 7 mA 

Shaft: 


Shaft length: 10 ... 200 cm 

Shaft extensions: Possible on request 



Cable ex corpus: 1.5 m; 8-pin plug M12 


9

Tensiometer 

T5 

Corpus 

Shaft 

The T5 Tensiometer is specially 

made for punctual measurements, 

for example in soil columns, small 

lysimeters or pots. 

With an active surface of only 0,5 cm 2 

and a diameter of 5 mm the ceramic 

tip has all advantages of small 

dimensions: little soil disturbance, 

punctual pick-up and fast response. 

The special version T5x can achieve a 

measuring range of 200 kPa. 

The T5 can be installed in any position 

and orientation. Bubbles are easily 

detectable through the transparent 

shaft. Output signals are balanced. 

New Auger Kit for T5 ... 

... for a perfect fit in the soil and 

minimised soil compression. 




Supply: 

typ. 10.6 VDC / 1.3 mA 

Shaft: 

Ø 5 mm 

Shaft length: 2 ... 20 cm 

Corpus: Ø 20 mm, length 3.5 cm 

Cable: 

1,5 m; 4-pin plug M12 

Delivery incl. T5 in carrying case, 

refill tools, manual. 

Please order connecting cables separately 

Benefits 

Accurate zero-tension reading 

Fast response: With sufficient filling 

the T5 responds within 5 seconds 

to an applied air pressure change 

of 0 to 85 kPa 

Most standard T5 reach a range of 

at least 150 kPa when delivered. 

Limits 


Not frost resistant 

In the field applications require 

impact protection 

Item 

Art.no. 

T5 

T5-... 

T5x expanded range T5x-... 

Auger Kit 

TBT5 


order, e. g. 7 cm = T5-7 

Applications 

Punctual measurement of water 

potential 

Miniature lysimeter studies, 

together with micro samplers and 

soil temperature probes 

Determination of pF/wc and 

K/Psi in soil columns, soil cores or 

soil sampling rings 

Determination of leachate and 

capillary water movements 

Controlling irrigation 

Pot experiments 

Measurements in the upper soil 

horizons in the field 

Monitoring with data loggers 


Special T5x with expanded range 

The T5x is the first pressure transducer 

Tensiometer that can reach an 

expanded measuring range of up to 

200 kPa when it is specially filled (see 

fig. and ordering information). 

Response and filling though are 

reduced compared to a standard T5. 


If your task is soil water monitoring 

you know the problem: water 

vaporizes and is lost. If soil gets dryer 

than about 85 kPa, no tensiometer is 

able to take measurements. Still, as 

only little water movements occur in 

extreme dry soil, losing readings is 

tolerable. Then, when the soil gets 

wet again, the Tensiometer could 

actually restart measurements - but 

first it needs to be refilled again. 

Now, the TS1 solves this problem: 

In case the cup needs to be refilled 

and soil water is available the internal 

pump will draw up water out of the 

soil, refill the cup and remove all 

air through an exhaust outlet - fully 

automatically. 

Even if only a bubble is detected the 

cup is deaerated automatically. 

Contrariwise, if the temperature probe 

indicates emerging frost, the TS1 

empties itself to prevent damages 

caused by freezing. 

Applications 

Field measurements of pF/wc 


Agricultural studies 

Model calibration 

Long time monitoring studies 

Water balance and transport 

studies 

Benefits 

Automatic self-refilling and 

deaerating 

Continuous fill level controlling 

Optional pore water sampling 

Automatic emptying before frost 

Integrated soil temperature probe 

Auto logging function 

tensioLINK and RS485 interface 

Low maintenance 

Limits 

Not for permanent dry soils 

Processor 

As standard two analogue outputs 

for pressure and temperature are 

available. For extended 

measuring tasks like large number 

of Tensiometers the TS1 can be bus 

linked. 

The configuration of pumping 

intervals, pumping volume, 

installation angle etc. is done by PC 

connection or with an INFIELD7b. 

If no correct readings are available 

an error message is registered. This 

ensures the data integrity. 

Pore water sampler 

When used as an intelligent pore 

water sampler the water drawn up 

from the soil is not removed through 

the exhaust but stored inside the 

shaft. Regulated by the controller, 

the water is extracted with a 

pressure that is slightly higher than the 

current soil water tension measured 

by the TS1. Thus, soil disturbance, filtration 

effects, lime accumulation or 

pH-value shifts are prevented. 

The intervals for automatic sampling 

as well as the sample amount can be 

set in the controller. 

Current consumption for 

measurements is less than 1 mA, for 

pump operation less than 10 mA. 

TS1 

Tensiometer 



Temperature 

Measuring range: -30 °C ... +70 °C 

Accuracy: ±0.1 K 

Output signal 

Analog: 

selectable ranges: 

2 x 0 ... 1 V / 2 V / 5 V 

Digital: 

RS 485, tensioLINK 

Supply: 

6 ... 20 VDC / typ. 1 mA 

Housing: 

Ø 40 mm, GFK/PMMA 

Cable: 


Tensiometer 

Item 

TS1 

TS1 with pore water 

sampling 

Art.no. 

TS1-... 

TS1s-... 


order, e. g. 30 cm = TS1-30 


11

Tensiometer 

INFIELD7 

The INFIELD7 is a multi-functional 

handheld read-out unit for Tensiometers 

and other soil probes. 

The following probe types can be 

connected: 

UMS Tensiometers T1, T3, T4, 

T5, T8 and TS1 

SIS smart gypsum block 

Watermark and Soilmoisture 

gypsum block 

FD Thetaprobe ML2x* 

FD Echoprobe 

(EC-5*,EC-10*,EC-20*) 

NEW! 5TE*, EC-TM* and 10HS* 

Temperature probes (UMS TH2, 

certain Thermistors, PT1000) 

All sensors with tensioLINKinterface 

like TS1, SIS 

*Need UMS 4-pin plug or adapter 

cable 

Benefits 

Memory for 250 readings 

Vertical water column 

compensation for Tensiometers 

Download readings to PC with 

accessory USB adapter 

Firmware upgradeable with 

tensioLink software 

Water tension: -100 kPa... +100 kPa 

New! Powered with 

Accuracy: 0.01 kPa 

easy to replace 4 x AA Temperature: -30°C... +70 °C 

standard batteries 

Accuracy: 0.1 K 

Memory: 250 readings 

Housing: IP65 

Size: 

17 x 9 x 3 cm 

Connectors: 4- and 8-pin plug M12 

Batteries: 4 x AA 1,5V 

Item 

Infield 7 

USB PC adapter 

Art.no. 

INFIELD7 

tLINK-USB 

Auger 

UMS special auger for Tensiometers and pore water samplers 

The cutting edge of the auger has a 

tapered tip similar to the shape of a 

Tensiometer or soil water sampler. 

Thus, the bore hole is large enough to 

insert the shaft, but the cup will have 

a tight and perfect fit to the soil. 

The not recommendable slurrying 

of the cup with quartz clay can be 

avoided. 

A divisible auger set includes: 

Cutting edge with tapered tip 

Handle with hammering head 

Parts have threaded connection and 

can be extended with one or more 

100 cm extension rods. 

Extension rod Art.no.: b.TBE-100 

Benefits 

Simplifies installation of shafts 

Avoids slurrying 

Multipart - divisible - extendable 

Cutting edge part 

Extension rod 

Tapered tip 

Handle 

TB-20 

TB-25 

Dimensions 

Cutting edge Ø 22 mm x 50 cm Ø 26 mm x 50 cm 

Tip Ø 20 mm x 5.6 cm Ø 24 mm x 5.6 cm 

Total length 1.25 m 1.5 m 

for shafts with Ø 20 mm Ø 24 mm 

Art.no. b.TB-20/125 b.TB-25/150 


BKT468 

Refill kit for T4, T6 and T8 

Tensiometers, including base stand 

with clamps, adapter that fits to T4, 

T6 and T8 sensor bodies, 500 ml 

bottle, vacuum gauge, tubes, beaker, 

refilling syringe, pliers. 

BKT5 

Refill kit for T5 Tensiometers, 

including base stand with clamps, 

adapter that fits to T5 sensor bodies, 

500 ml bottle, vacuum gauge, tubes, 

beaker, refilling syringe. 

Kits require additional vacuum pump. 

With the laboratory refill kits 

and adapters large quantities of 

Tensiometers can be deaerated and 

refilled at the same time. They are 

useful, but not essential. 

Note: T4e and T8 are supplied with an 

external refilling tool. 

Item 

Art.no. 

for T4, T6, T8 BKT468 

for T5 

BKT5 

8 mbar vacuum pump N-8 

Additional adapter piece 

for T4, T6, T8 BA-T468 

Additional adapter piece 

for T5 

BA-T5 

More accessories on request 

BKT 

Tensiometer 

UMS type connecting or extension 

cables for data logger applications 

etc. 

Connecting cables are fitted with 

a female plug and 12 cm wire end 

sleeves. 

Extension cables have one each male 

and female plug. 

Plugs are supplied with protective 

cap. 

Item 

Art.no. 

4-pin connecting cable for T3, T4, T5 

Length 5 m CC-4/5 



4-pin extension cable 

Length 5 m EC-4/5 



Cable 

Item 

Art.no. 

8-pin connecting cable for T8, TS1 




8-pin extension cable 




TV-Batt 

TV-Batt module 

TV-Batt DL2e 

Sensors with non-amplified bridge circuits 

like the Tensiometers T3, T4 and 

T5 require a stabilised power supply. 

For connecting them to Data loggers, 

their output signal should also have a 

logger specific signal level. The TVbatt 

power supply offers both requirements. 

The Tensiometer signals then 

are in a range of

Tensiometer 

SIS 

Soil water tension 

Measuring range: -20 kPa ... -200 kPa 

Updating: every 5 minutes 

Temperature 

Measuring range: -10°C ... +60°C 

Accuracy: ±1.5 K 

Impedance: 10 kOhm 

Supply: 6 ... 20 VDC, typ. 2,5 mA 

Matrix Sensor: Watermark 200SS 

Size: 

Ø 25 mm x 116 mm 

Extended version only 

Alarm signal: 0 V; +5 V, 2 thresholds 

with hysteresis 

Interface: RS 485, tensioLINK 

Item 

Art.no. 

Smart Irrigation Sensor SIS-W-... 

Standard version 

- 4-pin cable -L4 

- 4-pin plug M12 -C4 

Extended version 

- 8-pin cable -L8 

- 8-pin plug M12 -C 

Smart Irrigation Sensor 

Granular matrix sensor with linear 

output signal. 

The SIS is a combination of the wellknown 

Watermark(R) granular matrix 

soil moisture sensor type 200SS 

and a special amplifier which offers 

a fully linearised and temperature 

compensated DC-voltage output 

signal. 

The amplifier uses a new, patent 

pending technique for the extremely 

accurate measurement of the sensor 

element. 

The linear voltage signal reduces the 

efforts for the electronic measuring 

equipment and cable connections. 

The temperature compensation 

directly picks up the soil temperature. 

Thus, the otherwise problematic 

temperature difference between 

logger and sensor is avoided. 

An extended version features a 

programmable digital alarm signal 

for irrigation issues and a serial 

interface for bus linking and 

temperature read-out. 

DL6-te 

Benefits 

Stand-alone: no external battery or 

outdoor protection required 

Battery capacity approx. 1 year 

M12 connector plugs for UMS 

sensor cables or extension cables 

EC-4/... 

RS232-interface plug 

Channel 1 ... 6: Tensiometers 

Measuring range: +1.5 kPa... -110 kPa 


Channel 7: Temperature -20 ... +60°C 

Channel 8: Counter, max. 5 / s 

Channel 9: Relay switch (alarm) 

Memory: 16 000 readings 

Logg intervals: 1 s ... 24 h 

Working temp.: -20 ... +60°C 

Batteries: 6 x AA (Mignon-Alkaline) 

Enclosure: IP68 (Plugs IP67), 

15x18x7 cm; < 1 kg 

Tensiometer data logger 

Stand-alone 6-channel logger for 

UMS Tensiometers T3, T4 and 

T5 with internal sensor supply in 

weatherproof enclosure. Additional 

channel for one counter (rain gauge) 

and one temperature sensor (2k 

Thermistor) plus one alarm output. 

The model DL6-te is a modification 

of the Delta-T logger DL6, specially 

adapted for taking measurements 

with the UMS standard Tensiometers 

T3, T4 and T5. 

The internal batteries will supply 

sensors for up to one year (with 

normal intervals). 

Accelerated recording 

With this optional setting the 

recording rate is doubled when the 

connected rain gauge indicates 

rainfall - the penetration into the soil 

of a wetting front is recorded. 

Versions 

DL6-t8 logger for up to six T8 

Tensiometers without reading the T8- 

temperature output, or three T8 with 

both tension and temperature. 

Standard DL6 for Theta- or profile 

probes or sensors 0 ... 1 V. 

Item 

Art.no. 

DL6-te for T3, T4, T5 DL6-te 

DL6-t8 for T8 DL6-t8 

Please order separately: 

Extension cables EC-4 or EC-8 


Low cost solution 

With the 6-channel data logger 

DL6 or the modified Tensiometer 

logger DL6-te a basic but functional 

system for monitoring tasks can be 

established. 

To the DL6 respectively DL6-te 

connect: 

1 to 6 Tensiometers 

or 1 to 6 Smart gypsum blocks 

or 1 to 6 Thetaprobes 

plus 

1 rain gauge 

1 temperature probe 

1 alarm output 

Low cost solution 

Rain gauge 

DL6-te 

Tensiometers 

Tensiometer 

Field monitoring station 

In UMS field monitoring stations 

different soil and climatic sensors are 

combined to a particularly cutomized 

monitoring station. 

Choose between portable or fixed 

masts, different enclosures and 

power supply options. All parts have 

proven long-time reliability under 

environmental conditions: watertight 

plug connectors, UV-resistant cable 

sheaths, etc. 

Field monitoring 

Standard long term monitoring 

station 

In the custom-made UMS monitoring 

stations multiple soil monitoring 

sensors as well as climatic sensors 

are combined to a system that will 

exactly meet the users demands. 

We supply surface stations or 

installations from wells or ditches, 

including sensors, data acquisition 

system, enclosure, well construction, 

power supply etc. 

Long term monitoring 


15

Soil water sampling 


UMS offers a wide range of pore 

water samplers, leachate samplers 

and vacuum devices. For straight 

results it is decisive to select the 

suitable material, the correct type 

of sampler and the proper vacuum 

method. 

Should I use suction cups or suction 

plates? 

For extracting soil water for chemical 

analysis pore water samplers with 

cup are used (qualitative analysis). 

Cups are easier to install than plates. 

For determination of hydrologic 

loading of water and substances 

porous plates are suitable. Plates 

are enclosed by a cylinder to prevent 

that water will run around the plate 

(vacuum too low) or that water from a 

too large catchment span is extracted 

(vacuum too large). On lysimeter 

sites the cylinder reaches as far up as 

the soil surface. In contrary, leachate 

samplers are installed below the soil 

water shed. 

Leachate monitoring IRGO-Slovenia 

For pore water samplers a bubble 

point of 100 kPa (= 1000 hPa) is 

standard. For leachate samplers a 

bubble point of 10 kPa (= 100 hPa) is 

sufficient. 

Evacuation of sampling bottles with a portable vacuum pump 

How many samplers in a system? 

The number of suction cups connected 

to one vacuum source is theoretically 

not limited, as the vacuum once 

applied will stay and only the volume 

of water must compensated by 

the volume of air from the vacuum 

pump. 

In practise, we recommend to connect 

not more than about ten samplers to 

one vacuum unit for two reasons: 

1, If only one leak occurs (broken cup 

or faulty connection) the complete 

vacuum system stops working. 

2, If at one point the soil is drier than 

the cup‘s bubble point, the complete 

system stops working. 

3, It is much easier to handle small 

systems. 

Which porous material should be 

used for which substances? 

In the description of each sampler 

on the following pages you will find 

recommendations for the suitability. 

Still, the chemical interactions of 

soil water with the porous material, 

the vacuum level and the method 

of storage are complex. Therefore, 

please contact us in case of doubt. 

UMS developed a standard test 

procedure in co-operation with 

the Technical University Munich- 

Weihenstephan. 

A data base for suitability of several 

samplers is available now! 

Answers to FAQs 

Installation of cups, tubes and 

bottles in frost free depths only! 

Bottles and cups should be installed 

at the same level to prevent varying 

hydrostatic potentials. 

Water samples should be stored 

dark and at soil temperature, e. g. 

with the UMS sampling bottle box. 

Carefully remove the organic layer 

before augering in the mineral soil 

layer. 

Conditioning 

We advise not to flush the ceramics 

with any acid solution, as this can 

destroy ceramics or change their 

chemical behaviour. Discard the first 

samples after installation. 

Suction tubes should be as short as 

possible. 

Many air bubbles within the system 

reduce the vacuum. 

Shafts are marked so they can be 

installed in the optimal orientation. 

Sampling bottle box with sampling bottles 

Contact soil water 


Tel.: +49 (0) 89 / 12 66 52 - 15 

eMail: gvu@ums-muc.de 

Find a regularly updated list for the 

suitability of sampler materials for 

different substances and matters 

on: www.ums-muc.de\SuctionCups 


Which vacuum should be applied? 

To extract soil water in the unsaturated 

zone the soil water tension (retention 

force) has to be surpassed by the 

sampler‘s potential - a vacuum needs 

to be applied. 

The vacuum should be as close as 

possible to the in-situ soil water 

tension, as i.e. carbon will fall out in 

high vacuum. 

Variations of the pressure difference 

between the sampler’s inside and 

outside will lead to different filtration 

results - thus, memory effects 

occur. This is prevented by a tension 

controlled vacuum unit. 

Please note that water can only be 

extracted if water is available. The 

Example for a tension controlled vacuum 

UMS offers three different vacuum methods - the most suitable will depend on your task. 

1. The simple method 

Evacuate your sampling bottle down 

to approx. 50 kPa. If the soil water 

tension is lower than 50 kPa, soil 

water solution will be extracted until 

vacuum and soil water tension are 

equalized. When the samples are 

collected, the bottle is evacuated 

again. 

bigger the soil pores are, the less 

water is available at rising tensions! 

Sampling is possible in stony soils up 

to pF 1, in sandy soils up to pF 2, and 

in clay soils up to pF 2.7. 

Suction cups always act as chemical 

and physical filter. High vacuum 

applied at soils close to saturation 

cause transport of small particles into 

the sampler‘s pores. There is nearly 

no chance to reverse this process 

even by applying pressure, as around 

the cup an area of small particles will 

get accumulated. 

The effective active suction force is 

the difference of soil water tension 

and applied vacuum. 

2. The constant vacuum method 

A constant vacuum is continuously 

maintained by a regulated vacuum 

pump The vacuum can be set 

between atmospheric pressure and 

85 kPa. 

Rain 

event 

3. Tension controlled extraction 

A Tensiometer measures the soil 

water tension. The programmable 

vacuum station VS automatically 

supplies a vacuum in correspondence 

to the measured tension. Due to the 

numerous functions of the unit an 

optimal adaptation to the sampling 

task is possible. 


Leachate samplers for example are 

supplied with approx. 6 kPa, while 

pore water samplers in silt and loam 

are supplied with 10 to 30 kPa. As 

clay soils retain water even at higher 

tensions a vacuum from 30 to 85 kPa 

could be applicable. 

VacuPorter vacuum case 

Applications 

For qualitative analysis of soil 

water 

Benefits 

Low cost 

Easy handling 

Limits 

Discontinuous sampling 

Undefined sampling 

Tools 

Pore water samplers 

Hand-operated vacuum floor pump 

VPS-2 or portable vacuum case 

VacuPorter 

Applications 

Long term monitoring projects 

Studies on leachate 

Soil water extraction from a certain 

pore size with a vacuum which is 

exactly suitable to the pore size. 

Benefits 

Defined sampling 

Limits 

Constant vacuum ignores changing 

soil water tensions 

Tools 

Pore water or leachate samplers 

Vacuum station VS without 

controlling Tensiometer 

Typical soil water sampling system 

including samplers, connecting tubes, 

sampling bottles and a vacuum unit 

Benefits 

Constant sorption and constant 

filter effects 

Prevents memory effects 

Limits 

Takes samples from various pore 

sizes depending on the current 

vacuum 

Tools 

Pore water or leachate samplers 

Vacuum station VS with controlling 

Tensiometer 


17

Pore water sampling 

SK20 

Shaft: 




Suction tube: PE; Øi 1.6 mm; Øo 2.8mm 

Protective tube: PVC; Ø 11 mm 

Item 

SK20 

SIC20 

(SK20 identical with former type SKP100) 

Art.no. 

SK20-.../... 

Indicate required shaft and tube length 

on an order, e. g. 30 cm shaft and 5 m 

tube = SK20-30/5 

UMS SiC cups are protected by 

utility model no. 20 2005 002 598.4 

Shaft: 


SiC cup: Ø 20 mm; length 60 mm 

Bubble point: 0.9 bar 

Suction tube: PE; Øi 1.6 mm; Øo 2.8mm 

Protective tube: Ø 11 mm, fabric enforced 

Item 

SIC20 

Art.no. 

SIC20-.../... 

SK20 pore water sampler with 

removable shaft. For continuous and 

discontinuous extraction. Suitable for 

determination of nitrate and common 

organic and inorganic substances. 

Applications 

Continuous extraction 

Discontinuous extraction 

Nitrate, chloride, sulphate, calcium, 

sodium, ammonium, phosphorus 

Benefits 

Very low dead volume 

Shaft and cup exchangeable 

pH range of 4 to 9 

Limits 

Not suitable for heavy metals 

Pore water sampler SIC20 with 

removable shaft like the SK20, but 

with a SiC silicon carbide cup instead 

of the ceramic cup. SiC is sintered at 

2500°C and is chemically much more 

passive than ceramic or borosilicate. 

The bubble point 90 kPa. 

Applications 

Continuous extraction 

Disontinuous extraction 

Benefits 

High permeability 

Low sorption 

Very low dead volume 

Shaft and cup exchangeable 



tube = SIC20-30/5 

SKPE25 

Shaft: 




Suction tube: PE; Øi 2 mm; Øo 4 mm 


Item 

SKPE25 

Art.no. 

SKPE25-.../... 


on an order, e. g. 30cm shaft and 5m 

tube = SKPE25-30/5 

The sampled solution is stored inside 

the shaft and is collected by applying 

a pressure to the additional tube. 

Applications 

For extraction of soil solution from 

depths down to 8 meters 

Benefits 

Cost effective as sampling bottles 

are not needed 

The extracted soil water is stored 

at soil temperature 

pH range 4 to 9 

Limits 

Not suitable for heavy metals 


Instead of a ceramic cup the SPE20 

pore water sampler has a porous PEnylon-membrane 

which is specially 

suitable for heavy metals and whenever 

ceramics are inappropriate. 

Applications 

For detection of herbicide, 

pesticide, heavy metals 

Benefits 

Only materials with sample contact 

are nylon and polyethylene 

Low sorption 

Limits 

Bubble point is 100 kPa, but the 

porous PE cover allows water to 

flow only up to 20 kPa 

Pore water sampler with porous 

borosilicate glass cup. Borosilicate is 

suitable for phosphate and DOC. 

Available with a diameter of 20 mm 

or 25 mm. 

Applications 

Determination of phosphate, 

DOC 

Limits 

Because of complex chemical 

interactions sorption effects should 

be evaluated. 

SPE20 

Shaft: 

Ø20 mm; acrylic 

PE-nylon cup: Ø20 mm; length 60 mm 


Suction tube: PE; Øi 1,6 mm; Øo 2,8mm 


Item 

SPE20 

Shaft: 

Glass cup: 

Bubble point: 

Suction tube: 

Item 

SG20 

SG25 

Art.no. 

SPE20-.../... 



tube = SPE20-30/5 

SG25 

Ø20 or 25 mm; acrylic 

Ø20 or Ø25 mm 

Length 60 mm 

1 bar 

Teflon; Øi 1.5 mm; 

Øo 2.8 mm 

Art.no. 

SG20-.../... 

SG25-.../... 

Pore water sampling 



tube = SG20-30/5 

Sampler made of silicon carbide with 

bubble point 10 kPa. SiC is sintered at 

2500°C and is chemically much more 

passive than ceramic or borosilicate. 

Please ask for UMS‘s 

suitability survey. 

Applications 

Leachate sampling 

Sampler rake in lysimeter sites 

Benefits 

High permeability 

Low sorption 

Limits 

Only suitable for up to 10 kPa, i. e. 

only for leachate sampling 

No shaft attached 

UMS SiC cups are protected by 

utility model no. 20 2005 002 598.4 

SiC40 cup: 

Bubble point: 

Suction tube: 

Item 

SIC40 

Ø 40; length 500 mm 

0.1 bar 

Øi 4 mm; Øo 6 mm 

Art.no. 

SIC40/... 

Indicate required tube length on an 

order, e. g. 5 m tube = SIC40/5 

SIC40 


19


SPG120 

Pore water sampling and leachate monitoring 

Leachate sampling should be 

done below root zone and where 

only downwards leachate water is 

expected. 

The dimension of your sampler 

correlates to the soil. A homogenous 

Diameter: 

Ø 120 mm 

Thickness: 9 mm ± 1 mm 

Suction tube: Teflon; Ø1/16“x Ø 1/8 

Tube length: 2 m 

Item 

Porous glass plate 

Art.no. 

SPG120 

sandy soil needs small surface, a 

gravel heterogeneous soil with bypass 

and interflow requires big surface. 

Further the height of the wall depends 

on the soil and expected tensions, and 

the accuracy of the applied vacuum. 

SPG120 leachate sampling plate made 

of porous borosilicate glass. 

Suitable for phosphate and DOC. 

Applications 

Leachate sampler 

Benefits 

Extracts solution from the top as 

well as from bottom side 

No sealing foil or housing is needed 

as the tube is fitted into a hole which 

ends in the plate’s centre 

Optionally available with rubber foil 

backing 

The higher the wall, the lower are 

errors in under- or over estimating of 

leachate water, caused by sucking 

from outside area or false flow from 

sampler surface into the surrounding 

soil. 

SIC300 

Porous silicon carbide suction plate 

for laboratory use or field leachate 

sampling. The plate is covered with 

a butyl rubber foil and a bottom pipe 

connector to apply 6 kPa vacuum. 

Bubble point 10 kPa. 

Diameter: 

Ø 300 mm 

Thickness: 

10 mm 

Saturated conductivity: 1.2 x 10 -4 cm/sec 

Applications 

Suitable for lysimeter use, laboratory 

or in-situ applications 

Item 

Porous SiC plate 

Art.no. 

SIC300 

KL2 

The leachate bucket can be buried 

in situ to collect leachate - or can be 

used as a laboratory soil pillar and 

lysimeter. 

On the bottom of the stain less steel 

bucket a 1 bar high flow ceramic plate 

is fixed. The suction tube has contact 

only to the “backside“ of the ceramic 

plate’s rubber backing. 

Diameter: 300 mm 

Available heights: 300 mm 

600 mm 

1200 mm 

Ceramic plate: 0.5 bar high flow 

Flow rate : 2 litres per hour at 2 kPa 

(approx. 28 mm/h) 

Material: 2 mm stainless steel 

Applications 

Buriable leachate sampler 

Laboratory soil pillar 

Item 

height 300 mm 

height 600 mm 

height 1200 mm 

Art.no. 

KL2-300 

KL2-600 

KL2-1200 


Max. vacuum: 

Max. pressure: 

Capacity: 

Battery capacity: 

Case: 

Weight: 

Attachment KIPP 010 

VacuPorter 

Light-weight, portable, non regulated 

vacuum case with internal pump for 

creating vacuum from 0 to 85 kPa or 

pressure up to 4 bars. 

Item 

Vacuum case 

Art.no. 

VacuPorter 

85 kPa at 1 bar atm. 

4 bar 

10 liters / minute 

7 hours operation 

30 x 25 x 13 cm 

4,8 kg 

VPS-2 

Extremely rugged hand-operated 

vacuum floor pump with large swept 

volume for easy evacuation of 

sampling bottles in the field. 

Evacuation of sampling bottle 

Collecting soil water solution from 

sampling bottles 

Item 

Floor pump 

Max. vacuum: 

Capacity: 

The tipping counter measures water 

flows of up to 5 litres per minute with 

a resolution of 100 ml. With adequate 

connections the system is sealed 

hermetically and vacuum tight. 

Each tipping is counted by a reed 

switch which is fitted with a 1,5 m 

long cable with plug. Connecting 

cables CC-4 are available in different 

lengths. 

As an accessory an additional tipping 

cup with resolution 10 ml per count 

can attached on top. 

Benefits 

Suitable for vacuum applications 

Slide-in separator with bottle for 

sampling 2.5% of the flow volume 

Limits 

Art.no. 

xxxx 

VPS-2 

xxxx 

xxxx 

xxxx -85 kPa at 1 bar atm. 

0.41 liters per stroke 

KIPP100 

Applications 

Tipping counter for flow rates, 

discharge, leachate measurements 

Signal: 

Reed switch 

Max. flow: 5 litres per minute 

Resolution: 100 ml per count 

Accuracy: 

1% at 1 litre/h 

Enclosure material: UDEL PSU 

Wall fixture: Aluminium 

Sampling bottle: Polyethylene 

Item 

Art.no. 

Tipping counter KIPP100 

10 ml attachment KIPP010 


Sampling bottles SF-box Tanks 

Soil water sampling bottles made of 

Duran glass, available in three sizes. 

Implosion proof 

Plastic coating as chip guard 

Silicone rubber gasket with two 

connectors 

Accessory: Clip for upright 

attachment on walls 

In the sampling bottle box up to 6 

sampling bottles can be stored. The 

lid is covered with isolating material. 

Latches shut the box securely. The 

suction tubes are led through sealed 

fittings on the side of the box. 

Size 40 x 30 x 28 cm 

Material: PVC 

Stainless steel vacuum tanks for 

leachate water sampling or as a 

vacuum buffer. Pressure range from 

-1 to +1 bar. Available in three volumes 

with 20, 30 or 50 liters. Incl. pressure 

gauge, 8 mm SMC-quick-lock tube 

connector and visual indicator for fill 

level. 

Item 

Art.no. 

500 ml bottle SF-500 



Wall clip 

SF-CLIP 

Item 

Box with lid 

Art.no. 

SF-BOX 

Volume 

Art.no. 

20 liters VT20 




21

Vacuum systems 

Soil water sampling with vacuum systems 

Extract representative soil water 

samples with a constant vacuum, a 

timed vacuum or a tension-controlled 

vacuum: with the new VS-systems 

we can offer you an all-purpose and 

modern vacuum regulation. 

The VS product range replaces all 

previous UMS vacuum stations like 

the VK-3 case, the SCS7 and the 

SCS8. 

As a system solution all units now 

incorporate a vacuum pump, sensors 

and processor controlled regulation, 

suitable for battery powered in-thefiled 

use. 

1 or 2 regulated vacuum outputs 

The VS-single supplies one adjustable 

vacuum, either with a fixed constant 

value or controlled by a connected 

Tensiometer. 

For taking samples for example in 

the root zone or leachate water both 

models VS-twin and VS-pro offer 

two vacuum outputs which can be 

adjusted to a differing setting. 

Tension controlled sampling 

A Tensiometer measures the soil water 

tension. The vacuum automatically 

is set in correspondence to the 

measured tension. The advantage 

of this method is that the negative 

pressure potential which draws on 

the soil water is always constant 

(or in an adjustable proportion) 

and therefore, can be set to a low 

value. Thus, the soil water balance 

is disturbed as little as possible by 

a constant effective potential (i. e. = 

difference between vacuum in the 

sampler and the soil water tension). 

At any time the sampling takes place 

under defined conditions. Filtration 

and sorption processes on the cup 

are constant, memory effects are 

more or less excluded. 

The figure shows a possible set-up of a VS controlled sampling site 

Easy set-up 

Configuration and data download 

are done with a graphic Windows 

interface. The VS-pro additionally has 

a graphic LC-display and keypad for 

setting the most important functions 

of the unit, and where readings and 

status are displayed continuously. 

Rain 

event 

Multiple configuration options 

All VS units allows many possible 

configurations options, like setting 

accuracy, intervals and behaviour of 

regulation, hysteresis etc. 

As a controlling Tensiometer use any 

UMS Tensiometer with 4 pin plug, 

e. g. the T4 or T5, or a T8 with 8-pin 

plug. 

Integrated timer 

A timer was integrated to allow 

sampling in intervals. The vacuum is 

only established within the selected 

time range. At other times the 

pressure difference between soil 

water tension and vacuum is set to 

zero. This reduces the disturbance of 

the soil water balance. 

Automated measurements and 

logging 

The vacuum as well as an optionally 

connected Tensiometer are 

continuously measured. The readings 

are stored in a ring buffer and can be 

downloaded to a PC. 

The signals of Tensiometer and 

vacuum sensor can be measured on 

two analogue outputs. 

Example for a tension controlled vacuum 

Contact VS 

Andreas Steins 

Tel.: +49 (0) 89 / 12 66 52 - 18 

eMail: as@ums-muc.de 


Item 

VS with one 

vacuum output 

VS with two 

vacuum outputs 

Art.no. 

VS-single 

VS-twin 

Vacuum unit with one or two vacuum 

outputs, for constant or tension 

controlled vacuum. 

Applications 


Soil water extraction under defined 

conditions 

Leachate measurements under 

defined conditions 

Lysimeter sites 

Benefits 

Vacuum pump with high accuracy 

Two vacuum outputs 

Selectable constant or tension 

controlled vacuum 

Status indicated by multicolor LED 

Optimised for rechargeable battery 

supply 

One Tensiometer connectable: T8, 

T4 or T5 


Integrated data logger 

Limits 

Configuration only by PC or Laptop 

VS 

Supply: 

10.5 ...15 VDC 

Current consumption 

Operating average: approx. 15 mA 

Standby: approx. 1 mA 

While regulating: 50 ... 800 mA 

Interface: 

tensioLINK, RS485 

Analog output: 2 x 0 ... 1V, ... 2V, ... 5V 

Vacuum regulation 

Range: 

0 ... -85 kPa 


Memory: 

5000 readings 

Dimensions: 260 x 160 x 100 mm 

Protective rate: IP 66 

Operating temp.: -10°C ... +45°C 

Enclosure: Aluminium 

Vacuum systems 

Vacuum unit with one or two vacuum 

outputs, for constant or tension 

controlled vacuum. With keypad and 

display for basic status check and 

configuration. 

VS-pro 

Applications 


Defined pore water sampling 

Defined leachate measurements 

Lysimeter sites 

Item 

Art.no. 

VS with display and 

two vacuum outputs VS-pro 

Benefits 

Display and keypad for basic status 

check and configuration 

Continuous display of readings and 

status on the LCD 

LCD backlight and multicolor LED 

Vacuum pump with high accuracy 

Two vacuum outputs 

Selectable constant or tension 

controlled vacuum 

Optimised for rechargeable battery 

supply 

One Tensiometer connectable: T8, 

T4 or T5 


Integrated data logger 

Supply: 

10.5 ...15 VDC 

Current consumption 

Operating average: ca. 16 mA 

Standby: ca. 2 mA 

While regulating: 50 ... 800 mA 

Interface: 

tensioLINK, RS485 

Analog output: 2 x 0 ... 1V, ... 2V, ... 5V 

Vacuum regulation 

Range: 

0 ... -85 kPa 


Memory: 

5000 readings 

Dimensions: 260 x 160 x 100 mm 

Protective rate: IP 66 

Operating temp.: -10°C ... +45°C 

Enclosure: Aluminium 


23

Soil chemistry 

BaPS Barometric Process Separation 

The Barometric Process Separation (BaPS) is a patented method for the determination of primary microbial carbon and 

nitrogen conversion processes in undisturbed soil samples. 

Simultaneous measurement 

With the BaPS system the following 

conversion processes can be 

determined simultaneously: 

Gross nitrification 

Gross denitrification 

Soil respiration rate 

Benefits 

Analysis of undisturbed soil 

samples 

No application of tracers 

No use of inhibitors required 

Easy handling and prompt results 

Low initial and maintenance costs 

Good traceability as calculation 

algorithms are visible 

Ordering Information 

Art. No. 

Nitrogen cycle in soils 

The measuring principle 

Gross nitrification, gross denitrification 

and soil respiration rates are 

determined by recording air pressure, 

O2 and CO2 net balances within a 

gas and pressure tight isothermal 

system. 

Decisive are microbial activities 

causing an increase of pressure and 

carbon dioxide, and a decrease of 

oxygen. 

Soil respiration is pressure neutral: 

CH 2 

O + O 2,Atm 

CO 2,Atm 

+ H 2 

O 

Nitrification causes a pressure decrease: 

+ - 

NH 4 

+ 2O 2,Ni 

t NO 3 

+ H 2 

O + 2H + 

Denitrification causes a pressure increase: 

- 

5CH 2 

O + 4NO 3 

+ 4H + 5CO 2,Den 

+ 7H 2 

O + 2N 2 

Further, the dynamic equilibrium of the CO2- and O2- concentration in the head 

space and in the aqueous phase as well the pH-depending solubility of CO2 

must be considered. 

Applications 

Nitrate release 

Nitrogen emission 

Optimising N-fertilizer usage 

Parameterization of microbial 

N-conversion processes 

Soil respiration activity 

System limits 

Analysis of anaerobic soil is not 

possible, as in anaerobic soil other 

processes occur, such as the 

development of Methane. 

Sales and technical support 

Thomas Pertassek 

Tel.: +49 (0) 89 / 12 66 52 - 17 

eMail: tp@ums-muc.de 

Parameterisation of microbial N- 

conversion processes 

Scientific contact at IFU-IMK 

Dr. Klaus Butterbach-Bahl 

Tel.: +49 (0) 8821 / 183- 136 

klaus.butterbach@imk.fzk.de 

Developed in co-operation with 

the Forschungszentrum Karlsruhe Institute IFU-IMK 


The system consists of the incubator, the sensor top with integrated septum, 

oxygen, carbon dioxide, pressure and temperature sensor, the external 

electronic interface and the Windows software for control and data analysis. 

BaPS 

Carbon dioxide sensor 

Measuring range: 0 ... 3 vol% 

Rel. accuracy: ±2% 

Oxygen sensor 

Measuring range: 15 ... 21 vol% 

Rel. accuracy: ±1% 

Pressure sensor 

Measuring range: 80 ... 120 kPa 

Rel. accuracy: ±0.1% 

Temperature sensor 

Measuring range: -30 ... 70 °C 

Accuracy: 0.1°C by 0°C 

Dimensions 

Electronic interface: 260 x 260 x 16 mm 

Incubator: 

Ø 220 x 67 mm 

Sensor top: 

Ø 220 x 20 mm 

Soil chemistry 

Soil Sample Rings Volume Amount Art.no. 

53 x 50 mm, h 51 mm 100 ml 7 BaPS 100-S 

60 x 56 mm, h 40.5 mm 100 ml 7 BaPS 100-U 

84 x 80 mm, h 50 mm 250 ml 3 BaPS 250 

Additionally required: thermostat or 

a water bath with a temperature 

constancy of ± 0,01 K and a 

standard PC with RS232 interface 

THERMO-UM Sample ring set Soil gas lance 

The space-saving THERMO-UM is a 

circulation thermostat optimized for 

the temperature regulation of the 

BaPS system. 

Application 

External temperature control of the 

BaPS incubation chamber 

Benefits 

Accurate and precise 

Connector for an external control 

temperature probe 

RS 232C interface 

The UMS soil gas lance is suitable 

for extraction of soil gas in 

unsaturated and partially saturated 

zones. 

The gas is drawn up through 

hydrophobic porous Teflon. Thus, 

soil substratum, contaminations 

or water cannot intrude. 

Specifications 

Diameter: 8 mm 

Total length: 500 mm 

Porous length: 2 x 50 mm 

Connector: Swagelok ® ¼“ 

The soil sample sets are optimized for 

the BaPS system. They can be used 

to take samples in virtually all soils. 

The samples can be taken from the 

surface down to a depth of 2 m, in 

auger holes or in profile pits, above 

as well as under the ground water 

level. The closed ring holder in this 

set is fitted with a conical threaded 

connection which means that the 

ring holder may also be hammered 

into the soil with an impact absorbing 

hammer. 

Item 

THERMO-UM 

Art.no. 

THERMO-UM 

Item 

for BaPS 100-S 

for BaPS 100-U 

for BaPS 250 

Art.no. 

bpe.07.60.SC 

bpe.07.53.SC 

bpe.03.84.SC 

Item 

Soil gas lance 

Art.no. 

BGL-100 


25

Dendrometers 

D1 

Permanent tree-girth tape-measure 

with diameter scale 

Application 

Direct manual reading of the 

diameter of trees 

Dimensions: 2100 x 15 x 0,5 mm 

Thermal elongation: 75 x 10 -6 / K 

Coefficient of friction: 0.5 on dry bark 

Scale division: 0.05 πcm 

Vernier scale: 0.01 πcm 

Benefits 

Easy, quick and non-invasive 

installation 

Scale already shows diameter 

Vernier for accurate readings 

Minimised friction 

Low thermal expansion 

For larger trunks two bands can be 

connected 

Printed “Do not touch“ warning in 

several languages 

Short spring for diameters less than 

40 cm, long spring for diameters 

40 ... 65 cm or connected bands. 

Item 

Tree-girth tape: 

With short spring 

With short spring 

Art.no. 

D1-K 

D1-L 

D6 

Sensor: 

Bridge resistance: 

Measuring range: 

Power supply: 

Strain gage based tree growthsensor 

Applications 

Continuous high-resolution 

measuring of daily circumferential 

variation of trunks 

DMS 

350 Ohm 

0 .. 50 mm growth 

5 ... 15 VDC, stabilised 

Benefits 

Non-invasive installation 

No disturbance of growth 

Measuring of daily changes and 

immediate reactions, e. g. to rain 

or sunrise 

Minimisation of the friction 

on the bark with Teflon layer 

Invar steel girth cable with 

minimal dependence on 

temperature 

Measuring range expandable by 

adjusting of the cable 

Limits 

Strain-gage caused measuring 

complexity 

Item 

Art.no. 

Dendrometer D6 

Required accessories: 

Invar girth cable: order per meter 

Teflon bark layer: order per meter 

Product information, system solutions and reference projects ... 

... always up-to-date on our webpage: 



Complete weather stations - custom-made by UMS 

Weather data is important for many 

research tasks like meteorology, 

climate science, crop disease and 

pest forecast and last but not least 

for soil & hydrological studies. 

Water and energy balances are 

associated by the current evaporation 

of the plants and the transpiration of the 

soil. Thus, the knowledge of drainage, 

precipitation and evapotranspiration 

is essential for hydrologic predictions, 

water balance studies and water 

resource management. 

Climate 

Example for 10 m inclinable mast 

Please contact us or your local dealer 

for more information or a detailed 

offer. 

UMS weather stations 

UMS supplies custom-made stations 

in accordance with your targets and 

requirements. 

A typical station includes sensors for 

Air humidity and temperature 

Wind speed 

Precipitation 

Global radiation 

Air pressure 

UMS weather stations incorporate 

climatic sensor of well-known 

suppliers and fulfil WMO standards. 

To be complete a station requires: 

Mast with sensor mounts, foot 

(also portable), crossbeam 

Outdoor enclosure 

Datalogger 

Example for 2 m mast 

Power supply, e. g. solar 

Lightning protection 

Collecting 

funnel 

Inlay filter 

funnel with 

leaf catcher 

and 

fine filter tube 

PE-sampling 

bottle 

Rain sampler type LWF with collecting 

funnel, sampling bottle and effective 

filtering. The RS200 was developed 

by the LWF Bavarian State Institute of 

Forestry and fulfils recommendations of 

the World Meteorological Organization 

(WMO). 

The WMO recommends to add rain 

sampler like the RS200 to compensate 

the principle error of tipping bucket rain 

gauges. As precipitation varies in an 

area four RS200 units per rain gauge 

are advisable. 

Applications 

For quantitative and analytical 

surveys on precipitation 

Benefits 

HDPE and PP material for easy 

cleaning and undisturbed analysis 

Effective filtering 

Minimised rain loss by evaporation 

Filter kit 

The special filter kit includes a coarsely 

meshed sieve and an inlay funnel with 

fine filter nozzle which is additionally 

placed inside the collecting funnel. 

This prevents that needles or foliage 

enter the bottle - but still the loss of 

rain by evaporation is minimised as the 

adhesion of drops is reduced. 

Photo: Option with pipe stand which 

is partially buried for positioning the 

sampling funnel in a height of 1 m. 

Option: D-rs200: Inside the pipe the 

bottle is lowered into the ground, so 

the sampled rain can be stored at soil 

temperature. 

The accessory bird scarecrow ring is 

attached to the funnel. 

Diameter: 

200 mm 

Funnel surface: 314 cm 2 

Material: 

HDPE and PP 

Item 

Rain sampler, 5 l 

Rain sampler, 4.4 l 

Spare filter kit 

Pipe stand 

Anti bird ring 

Lid & tube set for 

soil temp storage 

Art.no. 

RS200/5 

RS200/4.4 

rs200.FS 

rs200.S100 

rs200.V 

D-rs200 

RS200 


27

Soil temperature 

Th2 

Measuring range -50°C...+70°C 

Accuracy ±0,1 K at 0°C 

±0,2 K at ± 20°C 

±0,1 K at ± 40°C 

Sensitive span Length 15 mm ,Ø 5 mm 

Sensor position 10 mm from tip 

Casing of tip Stainless steel, IP68 

Dimensions Length 80 mm, Ø 6 mm 

Cable length 10 m 

Benefits 

Highest accuracy 

Minimised soil disturbance 

Punctual temperature 

pick-up 

Maintenance-free and 

durable 

Cable strain-relieved 

Three temperature sensor 

types available 

Available sensor types: 

Pt100 

Standard 4-wire probe 

For cable lengths up to 200 m 

Linear signal output 

Thermistor 

3-wire connection for data logger 

applications 

Non linear but high-resolution 

output 

Excellent long-term stability 

Cable length max. 40 m 

Pt1000 

3-wire but with linear output 

Cable length max. 20 m 

Th2 Soil temperature probe 

The durable, water proof temperature 

probe for soils, fluids, gases. 

The thin body and sharpened tip 

reduce the soil disturbance when 

installed and ensures a good thermal 

contact to the soil. A heat conducting 

filling inside improves the thermal 

conductivity from the casing to the 

probe - for a fast response punctual 

temperature pick-up and minimised 

cable temperature influence. 

Item 

with Pt100 1/3 B 

with Thermistor 

with Pt1000 1/3 B 

Art.no. 

Th2-h 

Th2-f 

Th2-t 

Th3 

Soil Temperature Profile Probe to 

measure the temperature profile in 

soils in the depths 5, 10, 20, 30, 50 

and 100 cm. 

Inside a tube made of glass-fibre 

reinforced plastic 6 temperature 

sensor elements are placed in 

different depths. Each sensor element 

has direct contact to a stainless steel 

ring which ensures that each sensor 

has direct contact to the soil. 

Measuring range -20°C...+50°C 

Accuracy ±0,1 K 

Resolution 0,034°C 

Output signal 6 x 0...1 V 

Supply 6 ... 18 VDC 

Dimensions Length 102 cm, Ø2 cm 

Cable 

Length 1,5 m, 8-pin plug 

M12, strain-relieved, with 

plastic protection tub 

Tube 

GRP glass-fibre reinforced 

plastic, embedded stainless 

steel rings, conical tip 

Options Probe with SDI-12 output 

and 4-pin plug M12 

Benefits 

– 

– 

– 

– 

– 

– 

– 

– 

Get a temperature profile 

with only one probe 

6 analogue signals 0 ... 1 V 

Optionally with SDI-12 

Minimised soil disturbance 

Probe and cable completely 

buried, thus no influence of 

the ambient temperature 

Punctiform temperature pick-up 

Excellent thermal contact through 

thin-walled stainless steel rings 

Robust and maintenance free 

Item 

Probe with 6x0...1V 

Probe with SDI-12 

Art.no. 

Th3-v 

Th3-sdi12 

Limits 

– 

– 

– 

Not for spot measurements 

Only for data logger connection 

The depths are fix and 

cannot be changed 


Laboratory evaporation method for the determination of 

pF-curves and unsaturated conductivity 

The evaporation method according 

to Wind/Schindler is a simple and 

fast technique to determine retention 

curves of soil samples in standard 250 

ml soil sampling rings. The unsaturated 

Benefits 

– 

– 

– 

– 

– 

– 

– 

– 

– 

Simple and flexible handling 

Low time and cost expenditure 

Expandable 

Small size for easy transportation 

The water retention curve is 

determined with high quality even 

close to saturation 

The hydraulic functions are reliably 

assured by the large number of 

taken readings 

Simultaneous and accurate 

measurement of water retention 

curve and hydraulic conductivity 

Suitable for all soils (as long as 

Tensiometers can be installed) 

No special requirements for the 

measuring location beside possibly 

constant evaporation conditions 

during a measurement 

conductivity is determined by 

measuring the soil water tension 

with miniature Tensiometers in two 

levels inside the sample, and then 

correlated to the soil water tension or 

the moisture content. 

Durner and Peters developed the 

robust correlation procedure to link 

the hydraulic functions (SHYPFIT 

2.0, Peters and Durner, 2006b). The 

data is fitted to a selectable standard 

model, i. e. van Genuchten/Mualem, 

bimodal van Genuchten/Mualem 

or Brooks and Corey. The Model 

parameters can be set before, during 

or after a measuring procedure. Thus, 

the results are verified and the values 

for dry range and saturation are 

calculated according to the selected 

model. 

Limits 

– The operating range is limited 

to the measuring range of the 

Tensiometers 

– Poor resolution of the hydraulic 

conductivity near saturation 

(especially in sandy soils) 

Execute a measurement 

If a sample unit is placed on the scale 

the software automatically starts the 

weighing menu. 

If more than one sample is tested 

at a time each sample is placed on 

the scale in turn, for example twice 

a day. The software automatically 

recognizes each sample unit and 

stores the weight in correlation to this 

sample. A maximum of 20 samples 

can be tested simultaneously. 

Independent from the weighing the 

soil water tensions are automatically 

measured. Pressure transducers and 

electronics are housed in the sensor 

unit, and all sensor units are linked 

with the tensioLINK bus to your PC 

for continuous logging of the soil 

water tension. 

Hyprop 

The advantage compared to other 

methods is that the hydraulic 

properties are determined during a 

natural drying process of the soil. 

Hyprop’s outstanding features are 

the simple handling and the modular 

setup. For a start up you just need 

the HYPROP starter set and a scale. 

Existing laboratory scales, minimum 

requirements are a serial connection 

and a measuring range of 2000 grams, 

can be integrated. This set can be 

extended to up to 20 sample units. 

Together with the correlation 

procedure you get a truly practical 

method which offers extraordinary 

results in the determination of 

hydraulic functions with low 

measuring expenditure. 

Content of supply 

Basic starter kit Hyprop-S 

– Tool case with USB-adapter, 

software, connecting cable, auger 

positioning device, Tensiometer 

auger, refilling tools, 2 silicone 

gaskets, 1 sampling ring Euronorm 

250 ml 

– Sensor unit in case, with T-connector, 

connecting cable, degassing 

attachment, 2 Tensiometer cups, 

saturation bowl 

Starter kit Hyprop-SW 

– as Hyprop-S but including a precision 

scale (2000 g range; 0,1 gram 

resolution) 

Extension kit Hyprop-E 

– Sensor unit in case, with T-connector, 

connecting cable, degassing 

attachment, 2 Tensiometer cups, 

saturation bowl 

Soil lab equipment 

Item 

Art.no. 

Hyprop kits 

Basic starter kit Hyprop-S 

Starter kit with 

scale 

Hyprop-SW 

Extension kit Hyprop-E 

Accessories 

Sampling ring, 250ml SZ250 

Laboratory scale with RS232 

interface 

Hyprop-W 


29

Service 

UMS service principles 

For the set-up of measuring stations 

we offer the full service from first 

conception to design, supply, 

installation, training, initial start up 

and maintenance. 

To ensure a reliable operation 

in the long run, a complete 

service catalogue according to your 

demands is planned in advance. 

This will not only include the ideal 

specifications for instrumentation 

and measuring equipment, but will 

also consider the later operation, 

maintenance, data handling and data 

evaluation. 

„It is our aim to give you the best possible support in your tasks“ 

This principle is the basis for our complete range of activity, sorted into six service categories: 

1. Workshops and product training 

It is our aim that you get the 

appropriate instrumentation 

for your tasks, that you can work 

perfectly with your system, and that 

you are satisfied with it. 

Therefore, we offer workshops as 

well as individual training for our 

products. We will show you how to 

handle, maintain or calibrate your 

instruments and how to validate and 

interpret your data. 

Training: T4 Tensiometer handling 

UMS workshop about pore water sampling 

In our workshops current topics 

and solutions are presented and 

discussed. Benefit from this 

impartial forum, exchange 

experiences with colleagues and 

get to know new methods and 

techniques. 

We would be please to welcome you. 

Current dates on www.ums-muc.de 

2. Your inquires - our consultancy 

We are pleased to answer your 

inquiries - whether it is about a lowcost 

sensor or a high-end system. 

In accordance with your target we 

will select the proper instrumentation 

and make you a detailed offer, 

including the description of the sensor 

specifications and components. 

3. Ordering and delivery 

Each order we may carry out for you 

will be managed by your personal 

contact who will take care of a correct 

and fast delivery - a part of our quality 

assurance system. 


4. Installation & maintenance 

„The complete is more than just the 

sum of parts“ - an important guideline 

when sensors, loggers and sampling 

instruments are synchronised in one 

system which must operate reliably 

over many years. 

... if necessary even in wintertime, 

Service 

Our engineers are available for the 

planning, pre-assembling and testing 

of your instruments, as well as for 

field work installation and long-term 

maintenance wherever feasable. 

Installation of a measuring site, 

... or in breezier heigths! 

5. Warranty & repair 

A 12 month warranty is valid for all our products. For the ceramic cups of T4 and 

T8 Tensiometers we offer a lifetime warranty: if a cup breaks, we will send you 

a replacement free of charge. 

Any repair will be handled as quick as possible to keep the drop out of your 

system as short as possible! Please remind that continous maintenance can 

help to reduce failures. 

6. Maintenance & calibration 

Systems must operate continuously and reliable, but any instrumentation can 

only work as good as it is maintained. Many failures can be avoided by correct 

maintenance. In dependence of the required accuracy sensors and loggers 

need to be checked and calibrated regularly. 

Please contact us or your local dealer for our calibration service. 

Closing words 

We take responsibility for our mistakes - and want to learn from them. Therefore, we would be pleased to receive your 

comments and suggestions. 

Are you satisfied with our service and products? Please tell your colleagues who might appreciate your 

recommendation. 

We wish you good success. 

Your UMS team 


31

Units & Standards 

Guide to water potential units 

pF hPa kPa bar psi rF 

Wet 1 10 1 0.01 0.1450 0.999993 

2 100 10 0.1 1.4504 0.999926 

FK field capacity 2.53 339 33.9 0.33 4.9145 0.999756 

Standard tensiometer range 2.93 851 85.1 0.85 12.345 

3 1 000 100 1 14.504 0.999261 

4 10 000 1 000 10 145.04 0.992638 

Please PWP permanent do not hesitate wilting point to contact us for further 4.18 information 15 136 and assistance 1 513 or for a 15quotation: 

219.52 0.988977 

5 100 000 10 000 1 00 1 450.4 0.928772 

Air-dry, depending on humidity 6 1 000 000 100 000 1 000 14 504 0.477632 

Oven-dry 7 10 000 000 1 000 000 10 000 145 038 0.000618 

pF - is the base 10 logarithm of the water potential in cm 

hPa - soil water pressure in [hPa] related to atmospheric pressure 

kPa - soil water pressure in [kPa] related to atmospheric pressure 

bar - soil water pressure in [bar] related to atmospheric pressure 

psi - soil water pressure in [psi] related to atmospheric pressure 

rF - is the relative humidity computed assuming an air temperature of 293 K 

Signal definition of our Tensiometers 

Tensiometers measure soil water tensions (suction forces), which are negative pressures. Therefore, tension readings 

of our Tensiometers have a negative sign. In reverse, if soils are saturated and the Tensiometer is below a water level, 

the readings have a positive sign (pressure of water). 

This changed definition has become effective on 1st January 2006. 

IP protection classes 

IPXY 

X - 1st digit- protection against solid objects 

Y - 2nd digit - protection against liquids 

1st digit Degree of protection 2nd digit Degree of protection 

0 No protection 0 No protection 

1 Protected against solid objects over 50 mm 1 Protected against vertically falling drops of water. 

2 Protected against solid objects over 12 mm 2 Protected against direct sprays of water up to 15 ° 

from the vertical. 

3 Protected against solid objects over 2,5 mm 3 Protected against sprays to 60° from the vertical . 

4 Protected against solid objects over 1 mm 4 Protected against water sprayed from all directions 

– limited ingress permitted. 

5 Protected against dust – limited ingress permitted 

(no harmfull deposit.) 

5 Protected agains low pressure jets of water from all 

directions - limited ingress permitted. 

6 Totally protected against dust. 6 Protected against strong jets of water e g for use on 

shipdecks - limited ingress permitted. 

7 Protected against the affects of immersion between 

15 cm and 1 m. 

8 Protected against long periods of immersion under 

pressure. 

Protection classification according to DIN EN 60529 (VDE 0470) 

Example: IP65 

IP6x - Totally protected against dust. 

IPx5 - Protected agains low pressure jets of water from all directions - limited ingress permitted. 


Abstract of our reference list - system technology product line: 

Germany 

GSF - National Research Center for 

Environment and Health: 

Institute for plant pathologie 

1 irrigation site 

Institute for soil ecology: 

4 soil hydrological measuring stations 

1 extensive lysimeter facility 

5 soil heating experimantal sites 

Institute for radiation protection: 

3 mobile weather stations with 

GSM global data transmission 

TUM Technical University Munich: 

Chair of Soil Science: 


6 suction cup installations 

Chair of Vegetable Science: 

1 soil hydrological measuring station 

Chair of Physics: 

1 irrigation site 

Chair of Vegetation Ecology: 

4 automatic water level systems 

LMU Ludwig-Maximilians- 

University, Munich: 



13 weather stations 

Chair of Forest Yield Science: 

3 tree-growth measuring sites 

LWF - Bavarian Forest Institute: 

8 soil hydrological measuring 

stations and soil laboratory system 

Bavarian Institute for Water 

Management: 

Soil hydrological measuring station 

Bavarian State Research Center for 

Agriculture: 

1 lysimeter installation 

FNL - Agency for Ecological Field 

Studies, Munich: 



FAM - Research Association Agro-Ecosystems, 

Munich: 


LfU - Bavarian Environmental Protection 

Agency: 

1 soil hydrological analytical stations 

2 laboratory systems pH-research 

LGA Bavarian Public Corporation 

Service Company, Nuremberg: 


University of Goettingen: 


3 weather stations (Bolivia, Geogr.Inst.) 

1 Lysimeter station relaunched 

BEAK Consultants, Freiburg: 


LAF Forest Institute, State of Saxony: 


University of Hohenheim: 

Suction cup installation 

UMEG GmbH, Karlsruhe: 

Soil hydrological measuring station 

BASF: 

Limburger Hof 

5 micro cosmic systems 

Agricultural Center 


1 rain measuring systems 

1 soil hydrolgic station 

Bayer AG, Leverkusen: 

Suction cup installation 

ECT Ökotoxikologie GmbH, 

Flörsheim/Frankfurt: 


University Gesamthochschule Kassel: 


Research Center Jülich GmbH: 

6 suction cup installations, tensiometer 

University of Bayreuth: 


Ruhr-University Bochum: 


4 automatic water level stations 

Bavarian Environmental Protection 

Agency, department for substances and 

chemicals evaluation: 

1 lysimeter station with 8 monoliths 


40 lysimeters 

International 

Austrian State of Tyrol: 


University of Natural Resources and 

Applied Life Sciences, Vienna: 

1 weather station 

Joanneum Research Center, Graz: 

1 lysimeter station 





1 automatic water level station 

2 monitoring stations (nitrate, pH, O2) 

Austrian Research Center Seibersdorf: 


Austrian State of Carinthia: 


State of Lower Austria, St. Pölten: 


Geoconsult ZT GmbH, Salzburg: 

1 suction cup installation 

Austrian State of Styria, Graz: 

1 mountain Lysimeter station 


University Napoli, Italy: 


Ufficio Agrario di Pordenone, Italy: 


BRGM France: 


University of Bangor, Wales: 


University of Coimbra, Portugal: 


United States Department of 

Agriculture, USA: 


Universidad de Estudios de Postgrado, 

Ecuador: 

1 soil chemical measuring station 


Fundacao Coppetec, Rio de Janeiro, 

Brasil: 

Soil hydrological measuring stations 

University of Ulaanbaatar, Mongolia: 



Realized systems 


33

Contact 


< Managing Director 

< Lysimeter systems 

UMS GmbH 

Gmunder Str. 37 

81379 Muenchen / Germany 

Tel. +49 (0) 89 / 12 66 52 - 0 

Fax +49 (0) 89 / 12 66 52 - 20 

eMail: ums@ums-muc.de 

Internet: www.ums-muc.de 

Please do not hesitate to contact us for further information and assistance or for a quotation: 

Axel Rescher 

< Monitoring Systems 

< Order Processing 

Ext. - 15 

gvu@ums-muc.de 

Ext. - 13 

ar@ums-muc.de 

Martin Naleppa 

< International Sales 

< Dendrometers 

Thomas Keller 

< International Sales 

< Systems 

< Maintenance & Service 

Ext. - 14 

mn@ums-muc.de 

Ext. - 19 

tk@ums-muc.de 

Thomas Pertassek 

< BaPS 

< tensioVIEW 

< UMS-Soil-Lab-Services 

< R&D 

Ext. - 17 

tp@ums-muc.de 

Andreas Steins 

< R&D 

< Electronics 

< Systems, Data aquisition 

Ext. - 18 

as@ums-muc.de 

Sonja Gassner 

< Accounting 

Markus Berkmüller 

< Systems Support 

< R&D 

Ext. - 10 

sg@ums-muc.de 

Ext. - 23 

mb@ums-muc.de 

Jessica Oschmannr 

< Export order processing 

Stefan Engelhardt 

< Lysimeter Solutions 

< UMS-Soil-Lab-Services 

Ext. - 10 

jo@ums-muc.de 

Terms & conditions 

< Effective terms: ‘The General Conditions For The Supply Of 

Products And Services Of The Electrical And Electronics Industry’ 

< Warranty: One year on UMS parts and labour 

< Returns & repairs: Please contact us for instructions before 

shipping 

< Price list, delivery time and payment terms on request 

Ext. - 12 

se@ums-muc.de 

Specifications are subject to error or 

change without notice. 

UMS acknowledges all manufacturers 

trademarks referred to in this catalogue. 

© UMS GmbH 2010 

34 UMS GmbH · Gmunder Str. 37 · 81379 Muenchen · Germany · Tel.: +49 (0) 89-12 66 52-0 · Fax: +49 (0) 89-12 66 52-20 · www.ums-muc.de

Our worldwide partners give you the best support 

ASIA 

China (P. R.) and Hong Kong 

AOZUO Ecology Instrumentation Ltd 

25G, HengXing Building 

89 Zhong Guan Cun Eastern Road 

Haidian District 

Beijing,100080 

China 

Tel +86-10-82675321 

Fax +86-10-82623152 

sales@aozuo.com.cn 

www.aozuo.com.cn 

Contact: Ms. Jane Li 

AUSTRALIA 

MEA Pty. Ltd. 

Measurement Engineering Australia 

41 Vine Street 

Magill 

South Australia 5072 

Tel.: (61 8) 8332 9044 

Fax: (61 8) 8332 9577 

sales@mea.com.au 

www.mea.com.au 

Contact: Ms. Sonja van Wegen 

Korea 

C&H INC 

Rm 1505, Hwanghwa Bldg. 

Yeok Sam-Dong, Kang Nam-Ku 

Soul 

Korea 

Tel.: +82 2 501 3869 

Fax.: +82 2 556 0480 

pedol@freechal.com 

www.candh.net 

Contact: Mr. J.K. Park 

EUROPE 

Austria 



81379 Muenchen 

Germany 

Tel.: +49-89 / 12 66 52 - 0 

Fax: +49-89 / 12 66 52 - 20 

gvu@ums-muc.de 


Contact: Mr. Georg v. Unold 

Czech Republic and Slovakia 

EKOTECHNIKA spol. s r.o. 

Mokropeská 1832 

252 28 Èernošice 

Czech Republic 

Tel.: +420 2 5164 0511 

Fax:+420 2 5164 0512 

ekotechnika@ekotechnika.cz 

www.ekotechnika.cz 

Contact: Mr. Martin Jurkovic 

Hungary 

Envirotools Bt. 

2624 Szokolya 

Petőfi u. 8 

Hungary 

Tel.: +36-1-275-9424 

Fax: +36-30-346-1173 

envirotools@mailbox.hu 

www.envirotools.hu 

Contact: Mr. Sandor Haden 

France 

SOLS MESURES 

17 rue Jean Monnet - ZA des c’tes 

78990 ELANCOURT 

France 

Tel.: +33 (1) 30 - 50 34 50 

Fax: +33 (1) 30 - 50 34 49 

info@sols-mesures.com 

www.sols-mesures.com 

Contact: Ms. Jessica Soulice 

Spain 

LAB-FERRER / Centre d‘Assessoria 

Dr Ferrer SL, c/Ferran el catòlic, 3 

25200 CERVERA (LLEIDA) 

TEL/FAX: +34-973-53 21 10 

francesc@lab-ferrer.com 

WWW.LAB-FERRER.COM 

Contact: Mr. Francesc Ferrer Alegre 

Netherlands 

Eijkelkamp Agrisearch Equipment 

Nijverheidsstraat 30 

P.O. Box 4 

6987 EM Giesbeek 

Netherlands 

Tel.: +31 313 880200 

Fax: +31 313 632167 

eijkelkamp@eijkelkamp.com 

www.eijkelkamp.com 

Poland 

Geomor-Technik Sp. z o.o. 

ul. Bialowieska 2 

71-010 Szczecin 

Poland 

Tel./Fax.: +48-91 482 60 87 

Tel.: + 48-91 482 00 90 

geomor@geomor.com.pl 

www.geomor.com.pl 

Contact: Mr. Daniel Hrynkiewicz 

Sweden 

TORAGON AB 

Umestan Företagspark, hus 3 

903 47 UMEÅ 

Sweden 

Tel.: +46 90 100 260 

Fax: +46 90 100 261 

http://toragon.se 

info@toragon.se 

Contact: Mr. Torsten Karlsson 

United Kingdom 

DELTA-T Devices Ltd 

128 Low Road 

Burwell, Cambridge, CB5 0EJ 

United Kingdom 

Tel.: +44 1638 742922 

Fax: +44 1638 743155 

sales@delta-t.co.uk 

www.delta-t.co.uk 

Contact: Mr. Dick Jenkins 

USA 

AMERICA 

Decagon Devices, Inc. 

950 NE Nelson Court 

Pullman, WA 99163 

Tel: 1-800-755-2751 (US) 

509-332-2756 (International) 

Fax: 509-332-5158: 

sales@decagon.com 

www.decagon.com 

Contact: Mr. Nick Mower 

Canada 

Hoskin Scientific LTD 

4210 Morris Drive 

Burlington, Ontario L7L 5L6 

Tel.: 9 05 3 33 - 55 10 

Fax: 9 05 3 33 - 49 76 

www.hoskin.ca 

Burlington office: salesb@Hoskin.ca 

Vancouver office: salesv@Hoskin.ca 

Montreal office: salesm@Hoskin.ca 

Brazil 

Sócio Gerente 

Rua Paschoal Carlos Magno, 57 

20240-290 - Rio de Janeiro - RJ 

Tel: +55 (21) 2224-1997 

Skype: transatlantic-consulting 

tensio@transatlantic.com.br 

http://www.tensio.com.br 

Contact: Mr. Hans Rauschmayer 

GERMANY 




Tel.: +49 89 / 12 66 52 - 0 

Fax: +49 89 / 12 66 52 - 20 

ar@ums-muc.de 


Contact: Mr. Axel Rescher 

NOT LISTED COUNTRIES 




Tel.: +49 89 / 12 66 52 - 0 

Fax: +49 89 / 12 66 52 - 20 

mn@ums-muc.de 


Contact: Mr. Martin Naleppa 

Distributors 

UMS GmbH · Gmunder Str. 37 · 81379 Muenchen · Germany · Tel.: +49 (0) 89-12 66 52-0 · Fax: +49 (0) 89-12 66 52-20 · www.ums-muc.de 

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Germany 

Tel.: +49 (0) 89 / 12 66 52 - 0 

Fax.: +49 (0) 89 / 12 66 52 - 20 


info@ums-muc.de

UMS Product Catalog Release 3.0

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