Diagnostics and troubleshooting
Liquiline Control CDC90
94
Hauser
Item
Error message
Troubleshooting
612
Alarm limit for delivery volume of
pump 3 reached.
‣
Replace the pump.
613
High-current consumption of pump
unit
614
Level error: Canister empty
1.
Replace the pump.
2.
Replace the canister.
3.
Disable canisters that are not being used.
4.
Check float switch.
5.
Check connection between float switch
and terminals.
6.
Check signal cable between pneumatic
control unit and the CDC90 control unit.
7.
Replace float switch.
419
Max. zero point warning
Measurement can still take place.
Possible reasons, dependent on
sensor type
• Sensor old or defective
• Diaphragm blocked
• Buffer solution too old or
contaminated
• Electrolyte exhausted
• Sensor pin damaged
1.
Check the sensor.
2.
Replace the sensor if damaged.
3.
Check buffer solution or electrolyte,
replace if necessary.
4.
Repeat calibration.
417
Min. Slope warning
Measurement can still take place.
Possible reasons, dependent on
sensor type
• Sensor old or defective
• Diaphragm blocked
• Buffer solution too old or
contaminated
• Electrolyte exhausted
• Sensor pin damaged
1.
Check the sensor.
2.
Replace the sensor if damaged.
3.
Check buffer solution or electrolyte,
replace if necessary.
4.
Repeat calibration.
420
Delta zero point warning
Measurement can still take place.$
The calibration indicates a large
zero point change in the sensor.
1.
Check the sensor.
2.
Replace the sensor if damaged.
3.
Check buffer solution or electrolyte,
replace if necessary.
4.
Repeat calibration.
418
Delta slope warning
Measurement can still take place.
The calibration indicates a large
slope change in the sensor.
1.
Check the sensor.
2.
Replace the sensor if damaged.
3.
Check buffer solution or electrolyte,
replace if necessary.
4.
Repeat calibration.
502
Assembly position not defined.
‣
Check piston.
Pump control unit or control unit
for pilot valve
11.1.2 Process errors without messages
Operating Instructions "Memosens", BA01245C
Summary of Contents for Liquiline Control CDC90
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