Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting
Endress+Hauser 125
373 Electr. temp. M On Off High electronics temperature
--> Check ambient temperature and energy
consumption
374 Sensor check F On Off No measurement signal from sensor
-> Check the sensor connection
-> Check sensor, replace if necessary
401 Reset to default F On On Factory reset is performed
406 Param. active C Off Off --> Wait for configuration to be finished
407 Diag. active C Off Off --> Wait for maintenance to be finished
412 Writing backup F On Off --> Wait for the write process to be finished
413 Reading backup F On Off --> Wait
460 Curr. under-run S On Off Reasons
• Sensor in air
• Air pockets in assembly
• Sensor fouled
• Incorrect flow to sensor
Measures
1. Check sensor installation
2. Clean the sensor
3. Adjust assignment of current outputs
461 Current exceeded S On Off
462 Output Deviation S On Off When the current output is read back, the value
deviates from the target value displayed.
Possible reasons: Current load outside
specification, short-circuit or open current loop,
module defective
1. Check installation of current loop
2. Check module
3. Contact the Service Department
502 No text catalog F On On --> Contact the Service Department
503 Language change M On Off Language change failed
--> Contact the Service Department
530 Logbook at 80% M On Off 1. Save the logbook to the SD card and then
delete the logbook in the device
2. Set memory to ring memory
3. Deactivate logbook
531 Logbook full M On Off
532 License error M On Off --> Contact the Service Department
540 Parameter save M On Off Configuration saving has failed, --> repeat
541 Parameter load M On Off Configuration successfully loaded
542 Parameter load M On Off Configuration loading has failed, --> repeat
543 Parameter load M On Off Configuration loading aborted
544 Parameter reset M On Off Factory default successful
No. Message Factory settings Tests or remedial measures
Cat. Diag.
on/off
Error
current
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