Fault-Finding; Fault-Finding Instructions; Process Fault Messages; Process Faults Without Messages - Endress+Hauser CE 4 Operating Instructions Manual

Fault-finding

26
9 Fault-finding
9.1

Fault-finding instructions

Should the measurement station indicate a fault after commissioning or during
operation always start fault finding by following the checklists. The user is led to the
possible fault and its solution by means of simple questions.
9.2

Process fault messages

Fault message
'Dry run' lamp illuminated
'Overpressure' lamp illuminated
Cumulative alarm active
Fault code in the display of one of
the installed devices
Possible cause
•
No medium available
•
Pipe work overpressure
monitor active. Blockage in
the pipwork after the pump
•
No medium available
•
Motor overload switches
pump off
•
Measurement fault
•
Water sampler fault
•
Pipework overpressure
monitor active. Blockage in
pipework after pump
•
Power supply missing
•
Main isolator, fused switch
active
•
Pump hose breakage monitor
(peristaltic pump) active
•
Fault on the installed device
CE 4
Solution
•
Dry run protection system is
active. Check the suction
hose and hose end for
blockages
•
Remove the blockage in the
pipework
•
Dry run protection active.
Check suction hose and
hose end for blockages
•
Check pump motor, check
pump for blockages
•
See op manual for individual
units (sections 5, 6, 7, 8 in
the ring binder)
•
See water sampler op.
manual (section 6 in the ring
binder)
•
Remove blockage in
pipework
•
Call skilled electrician
•
Call skilled electrician
•
See peristaltic pump op.
manual (section 8 in the ring
binder)
•
See op. manual for the
respective device (sections
5, 6, 7, 8 in the ring binder)
Endress+Hauser