7.2 Error
Error
Possible effect
Remedy
Sensor cap not fully
screwed on
Loss of electrolyte, incorrect readings
Re-fill electrolyte and
screw sensor cap over
and beyond the o-ring up
to the sensor shaft
Tube ring has slipped over
the drill hole of the sensor
cap or is missing
Loss of electrolyte, incorrect readings
Push tube ring into the
groove or use new sensor
cap.
Re-fill electrolyte
No electrolyte filling, or
filling incomplete
Incorrect readings
Re-fill electrolyte
Wrong electrolyte used for
filling
No correct sensor function, destruction of
reference system
Only use electrolyte speci‐
fied for the respective
sensor.
Sensor must be sent to
ProMinent for processing
No clamping disc on
sensor
Leakage on the flow gauge housing
The sensor may shoot out of the flow
gauge housing like a bullet
Observe the installation
instructions
Clamping disc incorrectly
screwed onto the flow
gauge housing
Leakage on the flow gauge housing
Observe the installation
instructions
Sensor incorrectly
connected to the controller
1. No output signal (0 mA)
1. Check for correct
polarity
2. Signal >23 mA
2. Possible short-circuit on
terminal. Always attach
cable end sleeves to the
ends of the measuring
line.
Top section or M12 screw
connection on top section
not tightly screwed on
Corrosion on electrical component.
Sensor failure
Observe the installation
instructions
Chlorine concentration
exceeds permissible
maximum concentration
Sensor signal breaks down
Danger of over-metering
Treat gold electrodes with
emery
Troubleshooting
29
