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Fault finding list for troubleshooting
Malfunctions
Equipment does not work - no function
Fault:
LED “Power” is not illuminated.
Remedy:
Apply mains voltage and wire equipment in accordance with wiring diagram.
Equipment does not work correctly
Fault:
Due to dirt deposits on the measuring surface(s) the indicated actual value may be wrong
(determined with reference measurement).
Remedy:
Remove conductivity electrode and clean measuring surface(s).
Fault:
Dirt deposits on the measuring surface(s) can cause MAX or MIN alarms although the
actual value is between these limits (reference measurement).
Remedy:
Remove conductivity electrode and clean measuring surface(s).
If configured as proportional controller: The equipment works as two-position (on-off)
controller
Fault:
The feedback potentiometer in the continuous blowdown valve is either defective or not
connected.
Remedy:
Wire the equipment in accordance with the wiring diagram and check the potentiometer.
If faults occur that are not listed above or cannot be corrected, please contact our service centre
or authorized agency in your country.
