conductivity measuring transducer

 
properties:
  • compact conductivity measuring cell
  • output signal freely scaleable
  • adjustable cell constant
  • selectable temperature compensation mode
  • on site display for the temperature
  • exchangeable unit stickers

application area:

  • higher saline concentrations (e.g. brine measuring)
  • measurements in polluted solutions/waste water
  • controll of neutralization
  • heavily polluted liquids

       

GLMU 400 MP               

4 pole meas. cell incl.

specifications:
measuring ranges: 
 (free selectable by user!)		 conductivity: 0.0 to 200.0 µS/cm, 0 to 2000 µS/cm, 0.00 to 20.00 mS/cm,
0.0 to 200.0 mS/cm, 0 to 500 mS/cm
specific resistance: 0.0 to 200.0 kΩ*cm, 0.00 to 20.00 kΩ*cm,
1 to 5000 Ω*cm, 1.0 to 500.0 Ω*cm, 1.00 to 50.00 Ω*cm
TDS: 0.0 to 200.0 mg/, 0 to 2000.0 mg/l, 0.00 to 20.00 mg/l,
0.0 to 200.0 mg/l, 0 to 500 mg/l
salinity: 0.0 to 70.0
temperature meas.: -5.0°C to +140.0°C (transducer) and 0.0°C to +80.0°C (meas. cell)
measuring cell:

standard meas. cell:

conductivity measuring cell with graphite electrodes and integrated temperature sensor.

The cell constant is measured and pre-set ex works.
Measuring cell in breakage-protected plastic pole, heat resistant up to +80°C,
diameter 12mm, length of shaft 120mm, approx. connection cable with length of approx. 1m
For pressure-free applications please use the slip-on thread adapter PG13.5.
For pressures up to 6 bar order cell with fixed PG13.5 thread (optionally)!
accuracy:

(at nominal temperature = 25°C)

 conductivity: +0.5 % of meas. value +0.3 % FS
temperature: +0.2 °C +1 digit
meas. cell connection: 7-pole diode connector
cell constant: K = 0.30 to 1.20, freey adjustable
temperature compensation:
(selectable by user)		 off:  no compensation
Lin: linear compensation (from 0.3 to 3.0 %/K)
nLF: non-linear-function of natural water according to EN27888 (DIN 38404)
display; approx. 10mm high, 4-digit LCD-display
output signal: 4 to 20 mA (2-wire), standard
0 to 1 V or 0 to 10 V (3-wire), against upcharge
electric isolation:

input electrically isolated
auxiliary energy: 12 to 30 V DC
(for option 0 to 10 V: 18 to 30 V DC)
reverse voltage protection: 50 V permanent
perm. impedance: (at 4 to 20 mA): RA[Ω] = (UV [V] - 12V) / 0.02 A
permissible load: (at 0 to 10 V):  RL > 3000 kΩ
working temperature:

-25°C to +50°C (transducer)

0°C to +80°C (standard meas. cell)
storage temperature: -25°C to +70 °C
electrical connection: elbow-type plug acc. to DIN 43650 (IP65)
housing: ABS (IP65) with the exception of electrode socket
dimensions: 82 x 80 x 55mm (W x D x H), without elbow-type plug and socket
mounting: with fixing holes for wall mounting:
mounting distance: 70 x 50mm (W x H)
Options (against upcharges):
AV: output signal 0 to 1 V or 0 to 10 V, please notice in order
PG: electrode with thread PG13.5 (for use up to 6bar)
KL: longer meas. cell cable (recommended max. 5m)

 

accessories (against upcharges):
LFE 200: spare 4-pol measuring cell
PG 13.5: plug on thread adapter for pressure-free use
GKL 100: 100ml controlling solution, 1413 µS/cm (acc. to DIN 27888)
GEH 1: swivel-arm electrode retainer

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