TSI Instruments DustTrak 8540, Operation And Service Manual

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53
Chapter 6
Troubleshooting
The table below lists the symptoms, possible causes, and
recommended solutions for common problems encountered with
the DustTrak
™ monitor.
Symptom Possible Cause Corrective Action
Erratic reading. Leak Check connections for leaks
Dirty inlet port and/or
sample tube Clean inlet port. Clean or
replace tubing
Internal filter(s) not
installed properly
(leaking) Inspect internal filter wells to
make certain the filters and
O-rings are seated properly.
Replace internal filters if
necessary
DustTrak
reading
negative
concentrations Zero Drift Increase autozero
frequency
Analog output
does not work Cable/connector not
correctly installed Make sure cable connector
is fully seated
Output wired with
reverse polarity Make sure analog out (+)
and analog ground (-) are
wired correctly to data-
logger
Alarm output
does not work Alarm function not
turned on Turn the alarm function on
in TrakPro
™ software
Alarm does not
turn on correctly Alarm setting
incorrect Check the alarm settings in
TrakPro
™ software
Alarm output wired
with reverse polarity Alarm wires are polarized.
Voltage input must be wired
to alarm input (+)