Troubleshooting
53
Symptom Possible Cause Corrective Action
output does
not work.
Alarm does
not turn on
correctly.
Alarm function not turned
on.
Alarm setting incorrect.
Alarm output wired with
reverse polarity.
Turn the alarm function on in
the Settings->Alarm screen.
Check the alarm settings in the
Settings->Alarm screen.
Alarm wires are polarized.
Voltage input must be wired to
alarm input (+).
Instrument
does not
store new
data
Memory is full.
Instrument is in Survey
mode.
Delete or transfer historic data.
The instrument does not store
data in survey mode. Can to
manual or program log mode.
is indicated
on front
screen
instrument may have
problems overcoming
pressure differences.
Flow obstruction.
Internal pump failing,
indicated by inability to
adjust flow rate to full
range.
Filter Cassette clogged or
has mass loading.
Attach both the input and the
exhaust port into the duct.
Remove obstruction if still
present. Press any key to
bypass.
Factory service may be
required.
Replace the filter cassette. See
the maintenance section of the
Laser Error
indicated on
front screen
Laser background is too
high.
Laser is failing.
Remove and clean inlet nozzle.
Pay close attention to the tip of
the nozzle that is inserted into
the instrument to ensure it is
clear of any contamination.
Factory service may be
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