IBP Medical
If quality matters - IBP Medical
HDU-Sensors       Active Sensors with RS485- and USB-Interface    

High Precision Conductivity/Temperature Sensor
4-pole electrode in carbon plastic technology
Galvanic insulated RS485 Interface
Different modes for conductivity temperature compensation


The electrode is multifunctional and may be used as a flow through electrode as well as a dip electrode.

Conductivity Measurement

We use modern state of the art technology 4-pole electrode, utilising carbon compound technology for conductivity measurement. This technology gives no polarization effects and results in an absolutely linear and stable function over years of use.

Temperature Compensation

Conductivity temperature coefficient can be adjusted, ensuring a high accuracy conductivity measurement. The sensor offers four modes for compensation. For the use in calibration of hemodialysis machines the Biotech-Lab software allows to select the machine temperature compensation value by brand name.

Temperature Compensation Modes
No compensation
Linear with one adjustable value
Dynamic with two adjustable values and temperatures

Non Linear Function for tap, purified and waste water
in accordance with ISO 7888 DIN EN 27888 Standards.



Conductivity   Quadropole carbon Compound electrode.
4 measuring ranges.
Temperature compensation
coefficient may be adjusted.
Range: 0200.00 mS/cm
Cell constant: 0,54 1/cm
Accuracy: 0199 uS/cm 0,3% 0.6 uS/cm
  2001999 uS/cm 6 uS/cm
  2...11.99 mS/cm 0.06 mS/cm
  12...19.99 mS/cm 0.03 mS/cm
  20...200 mS/cm 0.6 mS/cm
Temperature   Sensor integrated into the conductivity electrode
Range: 0...100 C
Resolution: 0.01 C
Accuracy: 25...40C 0.05C, otherwise   0.1C 
Calibration   PTB/NIST traceable
Communication rate   All values five times per second
Degree of protection   IP67
Power supply   3,3 to 5 V, max. 80 mA via RS485- or USB-Interface
Environmental conditions   Ambient Operating Temperature Range: 0 to 50C
Storage Temperature Range: -40 to 80C
Operating and Storage Humidity: 85% max
relative humidity non-condensing
from 0 to 50C
Dimensions   124 x 34 mm
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Ikarusallee 15
30179 Hannover
+49 511 651647
From US 1-866-243-0187
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