Cleaning The Sensor - Testo Hydrotest 6337.9741 Bedienungsanleitung

The sensors are connectable and can be removed for
maintenance work.
Do not touch or shock the sensors.
Humidity sensor
The dirt which gathers on the sensor must be water-
soluble. The sensor can be cleaned with
demineralised/destilled water or ISOPROPANOL (and
then rinsed in water). When cleaning the sensor the
following safety measures must be observed:
- The water temperature should not exceed +60 ° C.
- Pour the water into a spray bottle.
- Sprinkle the sensor lightly with water.
- Dry the sensor, preferably in nitrogen at a low
pressure. It can also be dried in air.
- Wait 24 hours before re-using or testing the sensor.
- Calibration should be effected after the sensor has
been cleaned. We, therefore, recommend the use of a
control and calibration set.
- Damaged sensors (e. g. through toxic gas or abraison)
can be replaced by new sensors.
Pt100/NTC
Clean in water or with a soft cloth.
Cleaning the sintered cap
The sintered filters are best cleaned with compressed
air, which is blown from the inside outwards.

Cleaning the sensor