Section 8 Troubleshooting - TSI ALNOR LOFLO BALOMETER Manuel Du Propriétaire

Symptom
Meter does not turn on.
Meter reading lower than expected.
Meter reading higher than expected.
Meter not at zero at zero flow.
Meter displays Er.
Handle button not working.
8
SECTION 8
Troubleshooting
Possible Cause and Corrective Action

Battery holder snap connector not connected.
Connect battery holder to instrument.

Batteries may be discharged. Charge or replace
them.

Switch failure, wiring failure, or circuit failure. Call
TSI.

Wrong vent mode chosen. Choose correct vent
mode, open or closed.

Wrong air direction mode chosen. Choose
correct direction, supply or return.

Back pressure effects could be significant. Use 2-
point measurement mode.

Hood frame not sealing properly around diffuser
or grill. Press hood evenly against diffuser.

Odd air flow pattern present. Perform traverse
and use proportional balancing.

Hood torn. Replace, or repair tear with duct tape
or other non-porous material.

Meter out of calibration. Call TSI.

Damage to manifold. Call TSI.

Wrong vent mode chosen. Choose correct vent
mode, open or closed.

Wrong air direction mode chosen. Choose
correct direction, supply or return.

Odd air flow pattern present. Perform traverse
and use proportional balancing.

Meter out of calibration. Call TSI.

Instrument not at room temperature. Allow
instrument to acclimate before turning on the
power.

The LoFlo Balometer
real room air currents. Place on floor with a piece
of cardboard over the top to determine if it is
measuring real air currents.

Meter out of calibration. Call TSI.

Self test failed. Call TSI.

Call TSI.
®
Capture Hood is reading