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Chapter 5
Troubleshooting
The table below lists the symptoms, possible causes, and recommended
solutions for common problems encountered with the DustTrak II monitor.
Symptom
Possible Cause
Corrective Action
Erratic zero
reading.
Leak
Check connections for leaks
Replace zero filter
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
Perform Zero Cal
Zero Cal was performed
without the Zero Filter
in-line
Perform Zero Cal again and
make sure the Zero Filter is
attached to the DustTrak inlet
Error
completing
Zero Cal
Too much light scatter
in the optics chamber
due to dust deposits
Clean the inlet nozzle. Attach
the zero filter and sample for
about 2 minutes. During
sampling, pulse the flow going
into the DustTrak monitor by
intermittently plugging the zero
filter. Any dust in the optics
chamber will break loose
during flow pulsations and will
be cleared out by the pump
Perform Zero Cal again. If the
Zero Cal still cannot be
performed, factory service may
be required
Run Mode
Error: The
start time has
passed
The selected Run Mode
program has “Use Start
Date” selected, but the
start date is prior to the
current date
Correct or change the run
mode program
Содержание dusttrak II 8530
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