Troubleshooting Guide - TSI Alnor Balometer 6461 Manual Del Usuario

Symptom
Meter not at zero before use.
Cannot zero meter.
Meter reading lower than expected.
Meter not indicating.
Meter reading higher than expected.
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TROUBLESHOOTING GUIDE

Possible Cause and Corrective Action
Velometer not adjusted. Use zero adjustment screw.
Meter pointer not in balance. Return unit to factory for rebalance.
Possible static problem. Use antistatic solution.
Hood frame not sealing properly around diffuser or grill. Press
hood evenly against diffuser.
Hood torn. Replace, or repair tear with duct tape or other non-
porous material.
Range selector not properly set. Make sure detent on switch is
properly engaged.
Manifold is damaged. Call TSI.
Manifold holes are plugged. Clean holes.
Meter/range selector out of calibration. Calibrate instrument.
Low flow adapter not installed when using lowest (blue) scale.
Install adapter.
Low flow adapter not close enough to the manifold, or installed on
wrong side of manifold. See Preparation for Use section.
Odd air flow pattern. Perform traverse and use correction factor.
Resistance effects could be significant. Perform traverse and use
correction factor.
Range selector is switched to OFF. Position switch to correct
range.
Range selector incorrectly set. Position switch to correct range.
Connection between manifold/range selector/meter is broken. Call
TSI.
Meter/range selector out of calibration.
Calibrate instrument.
Low flow adapter mistakenly left installed.
Odd air flow pattern. Perform traverse and use correction factor.