O P E R AT I N G I N S T R U C T I O N S | C F P C U B I C
8021989 / 2017-10-20 | SICK AG
Subject to change without notice
4 6
11
TROUBLESHOOTING
Error
Cause
Solution
Sensor shows high level even though
the tank is empty.
The empty state of the probe has
changed significantly due to altered
ambient conditions or aging
Increase the threshold so that faults are
below the threshold.
Check SigQu4, re-teach capacitance val
-
ues in empty state, see
Deposit is detected as level
Remove deposit.
If the level is detected at the deposit,
check SigQu1 and increase the thresh-
old until the level is no longer detected.
Strong temperature fluctuations are
interfering with the probe
Increase the threshold, reduce the rate
of temperature change.