Troubleshooting
TARAtec 10.1
35 / 40
8.2
Special checks
8.2.1
Tightness of the membrane cap
Unscrew the membrane cap from the sensor (see section 7, p. 25).
Dry the outside of the membrane cap.
Prepare the membrane cap (see section 4.2, p. 16).
When screwing the membrane cap on, watch out for liquid escaping
through the membrane.
If liquid does escape through the membrane:
Use a new membrane cap.
If the sensor does not respond:
Return the sensor to the supplier for checking.
8.2.2
Electronics
Unscrew the membrane cap.
Rinse the electrode finger with mains water.
Using a clean cloth, carefully dry the electrode finger.
Connect the sensor to the measuring and control device.
Connect a suitable measuring device to the original sensor signal.
Wait five minutes.
Read the original sensor signal at the measuring device.
Mark up the values that were read against the following target values:
Sensor (mV): approx. +/- 0 mV
Sensor (mA): approx. 4 mA
Sensor (Modbus): approx. 0 ppm or 0%
If the sensor signal approximately corresponds to the aforementioned
value, the electronics can be provisionally regarded as OK.
If the measured value deviates significantly from the above value:
Return the sensor to the supplier for checking.
