
Distillation Process Analyzer DPA-4.5
Faults
9.3 Fault table
Faults not listed here may only be diagnosed and rectified by the
manufacturer or specialists authorized by the manufacturer.
WARNING
Risk of injury due to incorrect replacement
parts
Incorrect or defective replacement parts can result
in damage, faults or total failures as well as
impairments to safety.
For this reason:
– Only use original replacement parts from the
manufacturer.
Fault
Possible cause
Troubleshooting
No ready signal /
measuring result for a
long time
Device is switched
off / will not start
a) No display on the
pressure monitor
The power supply of the
device has been interrupted
(e.g. defective/tripped fuse).
Check the power supply and
restore it.
The pre-fuse of the
pressure monitor (only
present on certain models)
is defective.
Rectify the cause of the fault.
a) Display present
on the pressure
monitor
The pressure monitor has
switched off the device /
cannot start the device.
See pressure monitor manual.
The internal fuses are
defective / have tripped.
Rectify the cause of the fault.
The power supply of the I/O
card has been interrupted or
the I/O card is defective.
The instrument air supply
has been interrupted.
PACS is not running.
See software handbook.
No flow has been selected or automatic flow
switching is not active.
See software handbook.
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December 2013