9
Chapter 5
Troubleshooting
Table 5-1 lists the symptoms, possible causes, and recommended solutions
for common problems encountered with the Model 5815. If your symptom is
not listed, or if none of the solutions solves your problem, please contact
TSI.
Table 5-1: Troubleshooting the Model 5815
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.
WARNING
!
The pressure sensor is protected from damage up to 7 psi (48 kPa or
360 mmHg). At higher pressure it can burst!
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