53
Version 2.1
Update: April 2016
PONSEL Mesure
– Aqualabo Contrôle
35 Rue Michel Marion
– 56850 CAUDAN, FRANCE
Tel.: +33(0)2 97 89 25 30
– Fax: +33(0)2 97 76 55 72
7.2.6 CTZN sensor: Inductive conductivity.
General description
Conductivity: inductive measurement technology;
Temperature: NTC thermistor.
Materials
EPDM, PVC, 316L stainless steel (sleeve protecting the temperature sensor);
polyurethane sleeve on cable.
Precautions
This measuring technology is not sensitive to fouling. However, ensure that
the loop is not obstructed.
Measurement/Interference
When immersing the sensor in the medium to be measured, wait until the
sensor's temperature has stabilized before taking the reading.
The sensor is not well suited to measuring in the weakest ranges (0-200
µS/cm).
Operating temperature
0° C to 50 °C
Servicing
After each use, rinse the sensor carefully in clean water.
Storage
The sensor should be dried before being stored.
Storage temperature
- 10 °C to + 60 °C
Conductivity calibration
Using a clean sensor, perform a 2-point calibration of the sensor (offset and
gain using a standard solution whose conductivity is suited to the average
value expected):
Measurement range
Concentration of the
standard conductivity
solution
0-2,000 µS/cm
1,413 µS/cm
0.00-20.00 mS/cm
12.88 mS/cm
0.-100.0 mS/cm
20.00 mS/cm
Temperature calibration
Refer to section 7.2.1