Endress+Hauser Liquiline System CA80PH, Operating Instructions Manual

Page: 140 / 208

Diagnostics and troubleshooting Liquiline System CA80PH
140
Hauser
11.1.3 Device-specific errors
Problem Possible cause Tests and/or remedial measures
Dark display No supply voltage Check if voltage supplied.
Basic module defective Replace basic module
Values appear on display
but:
– Display does not
change and / or
– Device cannot be
operated
Module not wired correctly Check modules and wiring.
Impermissible operating system
condition
Switch off device and switch it on again.
Implausible measured
values
Inputs defective First perform tests and take measures as outlined in
"Process-specific errors" section
Measuring input test:
– Connect Memocheck Sim CYP03D to the input to
check whether the input is working properly.
Calibration / adjustment failed Repeat calibration
No reagents / sample • Check levels
• Check hose R2
• Check sample (only for self-priming)
Cell is dirty Calibration with zero standard
Cleaning with manual cleaning, then new calibration
with zero standard
Incorrect reagent Check the configured measurement parameter and
the reagents used
Incorrect concentration of the stan-
dard solution
Check the setting for the concentration of the stan-
dard solution
Reagents past shelf-life
Incorrect hose system connection Check the hose system using the hose connection
plan (see "Installation" section).
Measurement / cleaning /
calibration does not start
Action still active
Appropriate bottles not used Check status
No sample available Level detection (only for devices with sample collec-
ting vessel)
The device is in the fieldbus mode;
no manual actions are possible
Dispenser operating times have
expired
Calibration has failed Stability criterion not met • Check the configuration and perform a manual
calibration again
• Check hose R2