Conductivity measuring devices - Iberica de Automatismos

Handheld instrument
Display / Controller
WK
Conductivity measuring devices
• Wide measuring range from 0,0 µS/cm to 200,0 mS/cm
manually selectable or automatic range selection
• Double display for conductivity and temperature
• Display of resistance, salinity or TDS (dry residue of filtrate) (for GMH3430)
• Conform to the regulations of the drinking water ordinance (TrinkwV 2001)
and DIN EN 27888
• Automatic temperature compensation, reference temp. (20°C/25°C) selectable
• Setting of different temperature coefficients (for GMH3430)
• Extremely small measuring probe (dimensions as for pH-probe)
• Min./Max. value memory, Hold function,
• Serial interface, device can be connected to bus system (up to 5 devices
can be connected to one PC interface)
• Battery and d.c. operation
Alarm / Protection Temperature probe
Transmitter
Logger / EASYBus
GMH 3410
GMH 3430
Specification:
Measuring range:
Conductivity: 0,0 ... 200,0 µS/cm
0 ... 2000 µS/cm
0,00 ... 20,00 mS/cm
0,0 ... 200,0 mS/cm
manual setting or auto range
Temperature: -5,0 ... +100,0°C
Resistance: ( GMH3430) 0,005 ... 100,0 kOhm
Salinity: ( GMH3430) 0,0 ... 70,0
TDS: ( GMH3430)
Resolution:
0 ... 1999 mg/l
0,1 µS/cm; 1 µS/cm; 10 µS/cm or 0,1mS/cm
0,1 °C
0,001 kOhm; 0,01 kOhm or 0,1 kOhm
0,1 (salinity)
1 mg/l
Accuracy: ( ±1digit) (at nominal temperature = 25°C)
Conductivity: ±0,5% of m.v. ±0,3% FS or ±2µS/cm
Temperature: ±0,2% of m.v. ±0,3K
Cell constant: adjustable from 0.800 ... 1.200 cm -1
Temp. compensation: automatic or off (GMH3430).
Compensation coefficient:
- nLF: non-linear function of natural water according to
EN27888 (DIN38404).
- Lin: linear compensation from 0,3 ... 3,0 %/K. (GMH3430 only)
- off: no compensation. (GMH3430 only)
Display: 2 four digit LCDs (12.4mm and 7mm high) for conductivity
(resistance, salinity, TDS) and temperature, min./ max values, hold
function, etc. as well as additional functional arrows.
Measuring cell: 2-pol conductivity measuring cell; temperature
sensor integrated in shaft. Electrode material: graphite.
The graphite electrodes are the optimum solution for sewage and
can be cleaned easily.
Working temperature:0 to +50°C (device)
meas. cell: 0 to +80°C (permanent) 0 to +100° C (short time)
Relative humidity: 0 to +95%RH (non-condensing)
Storage temperature: -20 to +70°C
Min/Max-value memory: max. and min. values as well as the corresponding
temperature will be memorized.
Hold function: by pressing a button the current meas. value and
the corresponding temperature will be 'frozen'.
Interface: serial interface, direct connection to RS232 or USB interface
of a PC via electrically isolated interface converter GRS3100
or GRS3105 resp. USB3100 (p.r.t. accessories).
Difference between GMH 3430 and GMH 3410:
Additional features of GMH 3430:
• Determination of resistance, salinity and TDS.
• The following temperature coefficients are freely selectable:
natural waters, linear compensation or to be deactivated.
Pushbuttons: 6 membrane keys for ON/OFF-switch, selection of
meas. range, min- and max-value memory, hold-function, etc.
Power supply: 9V-battery, type IEC 6F22 (included) as well as
additional d.c. connector (internal pin Ø 1.9mm) for external 10.5-12V
direct voltage supply. (suitable power supply: GNG10/3000)
Power-Off-function: Device will be automatically switched off if no
key is pressed/no interface communication takes place for the time
of the power-off delay. The power-off delay can be set to values
between 1 and 120 min.; it can be completely deactivated.
Low battery warning: and ' bAt '
Power consumption: approx. 3.5 mA (meas. power not incl.)
Housing dimensions (device): 142 x 71 x 26 mm (H x W x D)
Impact-resistant ABS plastic housing, membrane keyboard, transparent
panel. Front side IP65, integrated pop-up clip for table top
or suspended use.
Electrode dim.: approx. 120mm long, Ø approx. 12mm, 1m of
fixed connection cable between electrode and device.
Weight: approx. 255 g (incl. batteries and measuring cell)
Automatic temperature compensation: The conductivity is
highly dependant on the temperature, i.e. it is only valid for one
temperature. For better comparison the device offers the possibility
to compensate the conductivity to a reference temperature (adjustable
20°C or 25°C).
Temperature measurement: The temperature of the agent can be
displayed by means of the temperature probe integrated in the electrode.
AutoRange: Automatic selection of to the optimum meas. range
for conductivity measurements. AutoRange mode can be deactivated
by pressing a button.
Salinity determination (GMH3430 only): Salinity is understood to be the
sum of concentrations of all salts dissolved in water. Reading in g/kg.
TDS-determination (dry residue of filtrate) (GMH3430 only): The dry residue
of filtrate is understood to be the concentration of substances
dissolved in a liquid. Reading in mg/l.
Accessories:
GKL 100 100ml conductivity control solution
(100ml bottles with 1413 µS/cm. (pursuant to DIN EN 27888))
miscellaneous accessories (case, power supply, etc.)
suitable for all GMH3xxx devices p.r.t. p. 39 -41
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Conductivity measuring devices
WK
Highlights:
• 3 conductivity measuring ranges
• Low power consumption
• Automatic measuring range change-over
• Min/max-value memory
• Automatic temperature compensation
via integrated temperature sensor
• Hold function
• Adjustable
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Handheld instrument
Display / Controller
Area of application:
• Fresh and sea water aquaristics
• Fish farming / water monitoring
• Drink water monitoring, etc.
GLF 100
GLF 100 RW
Universal conductivity measuring device
Conductivity meter for ultra-pure water
Area of application:
• Checking of pure and ultra-pure water
• Checking of boiler water
• Functional check of ion exchangers
Logger / EASYBus
Specification GLF 100 GLF 100 RW
Measuring ranges:
Conductivity: 0 ... 2000 µS/cm 0.000 ... 2.000 µS/cm
0.00 ... 20.00 mS/cm 0.00 ... 20.00 µS/cm
0.0 ... 100.0 mS/cm 0.0 ... 100.0 µS/cm
Temperature: -5.0 ... +100.0 °C -5.0 ... +100.0 °C
TDS: 0 ... 2000 mg/l --
Salinity: 0.0 ... 50.0 g/kg --
Resistivity: -- 0.0100 ... 0.2000 MΩ*cm
-- 0.010 ... 2.000 MΩ*cm
-- 0.01 ... 20.00 MΩ*cm
Accuracy: (±1 digit, at nominal temperature = 25 °C)
Conductivity: ±0.5 % of m.v. ±0,5 % FS typ. ±1% of m.v. ±0,5 % FS
Temperature: ±0.3 °C ±0.3 °C
Temp.-compensation: off: deactivated off: deactivated
nLF: non-linear, acc. to EN 27888 nLF: non-linear, acc. to EN 27888
-- LIN: linear, with adjustable
coefficients
-- NaCl: compensation for weak
NaCl-solutions acc. to EN 60746-3
Reference temperatures: 20 and 25 °C 20 and 25 °C
Measuring cell: 2-pole measuring cell, 2-pole measuring cell, Ø 12 mm
Ø 12 mm (graphite) (stainless steel: 1.4404, 1.4435)
with integrated temperature sensor with integrated temperature sensor
Display:
approx. 11 mm high, 4½-digit LCD-display
Working conditions
Device:
-25 ... +50 °C, 0 ... 95 % RH (non condensing)
Measuring cell: -5 ... +80 °C (for short-time: 100 °C)
Power supply: 9V-battery, type 6F22 (in scope of supply)
Power consumption: < 1.5 mA
Housing:
impact resistant ABS, membrane keyboard, transparent panel, front side IP65
Dimensions (device): 110 x 67 x 30 mm (H x W x D)
Weight:
approx. 155 g
Device functions:
Hold function: by keypress the current measuring value will be “frozen”
Min/max-value memory: the min. and max. measured value is stored
Power-Off-function: device turns off after some time (adjustable: 1-120 min or deactivated),
if no operating has taken
The measuring cell
The measuring head is designed without compromise. The
holes ensure the well exchange of the measuring fluid, nonetheless
the sensor is protected against mechanical loads.
The integrated temperature sensor has very quick response
time. Compared to simpler electrode designs the measurements
are much more accurate and faster.
GLF 100:
Graphite used as material for the
electrodes makes the applicability up
to 100 mS/cm possible – a must have
in seawater analytic
GLF 100 RW:
Universal applicability at highest
standards is made possible by the use
of stainless steel electrodes (1.4404,
1.4435).
Accessories
GKL 100 Conductivity control solution
(100 ml bottles with 1413 µS/cm. (acc. to DIN EN 27888))
GKL 101 Conductivity control solution
(250 ml bottles with 84 µS/cm.)
GEH 1 Swivel-arm electrode-retainer
(for up to 4 electrodes / probes )
GWZ-01 Flow-through chamber
(for measuring cell with Ø 12 mm)
ST-KR Protection bag (for device)
GB 9 V Spare battery 9V / approx. 300 mAh, type 6F22
GKK 252 Case (235 x 185 x 48 mm) with punched lining
GKK 3100 Case (275 x 229 x 83 mm) with punched lining
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for additional accessories please refer to page 40, 41
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Transmitter
Temperature probe
Alarm / Protection