11
Chapter 5
Troubleshooting
Table 4 lists the symptoms, possible causes, and recommended
solutions for common problems encountered with the flowmeter. If the
symptom is not listed, or if none of the solutions solves the problem,
please contact TSI Customer Support at 1-800-874-2811 or
651-490-2811.
Table 4.
Troubleshooting
Symptom
Possible Causes
Corrective Action
No display.
Unit not switched on.
Switch on the unit.
No power to
instrument.
Plug in AC adapter or
check power source on
mini-DIN connector.
Temperature
reads high at
low or zero
flows.
Temperature sensor is
being heated from the
flow sensor.
This is normal. Once
flow exceeds 1 Std
L/min, the temperature
will track the flowing gas
temperature.
Flow readings
fluctuate badly.
The flow is fluctuating. Improve inlet conditions
or increase display
averaging time.
Display shows
flows over-range
with no flow
passing through
flow tube.
The sensor may be
damaged or broken.
Return flowmeter to TSI
for service.
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