9 – Fault finding
MultiExact Gas Analyser
9.4
General fault finding
For general analyser fault finding, refer to the table on the following pages.
If you have read through the table and still cannot rectify a fault, or cannot identify the
cause of a fault, contact Servomex or your local Servomex agent for assistance.
Fault symptom
Recommended actions
The fault LED is on.
Check any current fault messages (see Section 9.2),
and carry out the recommended actions
(see Section 9.1).
If there are no applicable fault messages stored, or if
you cannot rectify the fault after you have carried out
the recommended actions:
•
Switch off the analyser, then switch it on again.
•
If the fault persists, contact Servomex or your
local Servomex agent for assistance.
The software health indicator is not
moving on the display.
Carry out the recommended actions for the "The fault
LED is on" symptom above.
" - - - - - " is displayed instead of a
sample measurement.
This indicates a possible measurement error, or a
communications error between the transducer and
the analyser controller.
Check that the analyser is not being knocked,
moved, or subjected to high levels of vibration during
sample measurements.
If the analyser is not being knocked, moved or
subjected to vibration and the fault persists, contact
Servomex or your local Servomex agent for
assistance.
Analyser response is slow.
Check that the sample gas inlet is not blocked, and
that the sample gas supply to the analyser is not
restricted.
Check that the sample gas outlet is not blocked, and
that any pipes connected to the outlet are not
restricted.
Trace CO
2
scrubber filter may need replacing,
contact Servomex for replacement.
Check that the sample gas supply pressure is
correct: refer to Section 2.4.
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