9
Chapter 5
Troubleshooting
Table 5-1 lists the symptoms, possible causes, and recommended
solutions for common problems encountered with the Model 9515. If
your symptom is not listed, or if none of the solutions solves your
problem, please contact TSI
®
Incorporated.
Table 5-1: Troubleshooting the VelociCalc
®
Model 9515
Symptom
Possible Causes
Corrective Action
No Display
Unit not turned on
Switch unit on.
Low or dead batteries
Replace batteries.
Dirty battery contacts
Clean the battery
contacts.
Velocity reading
fluctuates unstable
Fluctuating flow
Reposition probe in
less-turbulent flow
Instrument Error
message appears
Fault in instrument
Factory service required
on instrument.
W A R N I N G !
Remove the probe from excessive temperature immediately:
excessive heat can damage the sensor. Operating temperature
limits can be found in
Appendix A, Specifications
.
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.com
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