5200 Multi Purpose and 5200 Multi Purpose HF Gas Analysers
05230001A / Revision 970
" " is displayed instead of
a sample measurement (or appears
in the data log).
This indicates that the sample gas measurement is
below the lower measurement limit of the Multi
Purpose.
If this is displayed or appears during calibration,
check that the calibration gas is as specified in
Section 2.3 and recalibrate the Multi Purpose.
If this is displayed or appears during sample
measurement, check that the sample gas target
range is within the specification of the Multi
Purpose (see Section 2.2).
Multi Purpose response is slow. 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 are not blocked, and that any tubes or pipes
connected to the outlets are not restricted.
Inspect the inlet filter element and replace it if
necessary: refer to Section 7.2.
Check that the sample gas supply pressure is
correct: refer to Section 2.2.
Check that the Multi Purpose is being used in the
correct ambient conditions: refer to Section 2.4.
Multi Purpose measurements are
not as expected.
Check that the correct display units have been
selected, and that the units conversion factor has
been correctly entered (see Section 6.4).
Check that any cross-interference offsets that you
have entered are correct (see Section 6.3.2).
Fault symptom Recommended actions
General fault finding (Sheet 2 of 5)
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