Endress+Hauser Liquistation CSF48 - Page 184

Diagnostics and troubleshooting Liquistation CSF48
184 Endress+Hauser
Control signals are not
accepted or outputs do not
switch
Incorrect program setting Check program setting
Incorrect wiring Check wiring
Electronics failure Replace basic module
Sample not representative
Siphon in sampling hose Check sampling hose
Connection not air-tight/sampling
hose taking in air
– Check tubes/connections
– Check the sampling hose is routed correctly
Bottles not being filled correctly – Incorrect distribution selected in the controls
– Calibrate the distribution arm
Distribution arm does not move – Incorrect distribution selected in the controls
– Check distribution arm connection
– Distributor defective, replace distributor or
– Have repaired by E+H Service
Incorrect bottle filled – Incorrect distribution selected in the controls
No sample cooling – Check the setting for the sample
compartment temperature in the controls
– Cooling system defective
--> Have repaired by E+H Service
Wrong pump tube Only use genuine pump tube
Faulty sensory mechanism Replace sensory mechanism (contact E+H
Service)
No sampling
Connection leaking Check tubes/connections for leaks
Sampling hose taking in air Check the sampling hose is routed correctly
Air manager defective Have repaired by E+H Service
Vacuum pump defective Have repaired by E+H Service
Wrong pump tube Only use genuine pump tube
Faulty sensory mechanism Replace sensory mechanism (contact E+H
Service)
Implausible measured values
(only for version with
sensors with the Memosens
protocol)
Inputs defective First perform tests and take measures as
outlined in "Process-specific errors" section
Measuring input test:
– Connect a resistor instead of the
conductivity sensor
Current output, incorrect
current value
Incorrect adjustment Check with integrated current simulation,
connect mA meter directly to current output.
Load too large
Shunt / short to ground in current loop
No current output signal Basic module defective Check with integrated current simulation,
connect mA meter directly to current output.
Problem Possible cause Tests and/or remedial measures