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Malfunctions
Fault-finding list for troubleshooting
Equipment is not working
Fault:
No supply voltage.
Remedy:
Apply power and check all electrical connections.
Fault:
Electronic insert of the conductivity transmitter defective.
Remedy:
Replace electronic insert.
Fault:
Mass connection to vessel interrupted – no function.
Remedy:
Clean seating surfaces and screw in electrode with metal joint ring 33 x 39, form D,
DIN 7603, made from 1.4301, bright annealed. Do not seal electrode with hemp or
PTFE tape.
Equipment signals malfunction
LED display:
Red LED flashing.
Current output:
0 mA
Fault:
Electrode lines interrupted or measuring surface / measuring electrodes exposed.
Remedy:
Check connections of the electrode lines (electronic insert, terminal lugs 1 – 4).
Replace equipment if necessary. Check water level and installation.
LED display:
Red LED flashing.
Current output:
4 mA
Fault:
Value below 0 % setting, e.g. measuring surface / measuring electrodes exposed.
Remedy:
Check water level and installation.
LED display:
Green LED flashing.
Current output:
20 mA
Fault:
Value above 100 % setting, e. g. measuring range too small.
Remedy:
Set a larger measuring range.
LED display:
Red LED flashing.
Current output:
0 mA
Fault:
Short-circuited in electrode lines.
Remedy:
Check connections of the electrode lines (electronic insert, terminal lugs 1 – 4).
Replace equipment if necessary.
LED display:
Red and green LEDs are flashing.
Current output:
0 mA
Fault:
Temperature in terminal box exceeds 85 °C.
Remedy:
Check ambient temperature. Make sure it does not exceed 70 °C.
