5200 Multi Purpose and 5200 Multi Purpose HF Gas Analysers
05230001A / Revision 9
71
Multi Purpose measurements are
unstable.
Check that the sample gas supply pressure is
correct: refer to Section 2.2.
Check that the Multi Purpose is not being
subjected to high levels of vibration.
Check that the sample gas inlet is not blocked, and
that the sample gas supply to the Multi Purpose is
not restricted.
Check that the sample gas outlet and bypass gas
outlet (if fitted) are not blocked, and that any tubes
or pipes connected to the outlets are not restricted.
Inspect the filter element and replace it if
necessary: refer to Section 7.2.
The Multi Purpose will not calibrate. Check that the correct low and high calibration
gases are being used: refer to Section 2.3.
Check that the sample gas inlet is not blocked, and
that the sample gas supply to the Multi Purpose is
not restricted.
Check that the sample gas outlet and bypass gas
outlet (if fitted) are not blocked. On a standard
Multi Purpose with an internal sample pump,
check that the calibration ‘T’ piece is not blocked.
Check that any tubes or pipes connected to the
outlets (or to the calibration ‘T’ piece) are not
restricted.
Inspect the filter element and replace it if
necessary: refer to Section 7.2.
Fault symptom Recommended actions
General fault finding (Sheet 3 of 5)
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