TSI Instruments AEROTRAK 9306, Operation Manual, Page: 72 / 82

6-2 AeroTrak
®
Handheld Airborne Particle Counter
Symptom Possible Cause Corrective Action
Battery does not charge . The unit must be turned on but not in
sampling mode for the battery to charge. Turn on unit.
The battery will only charge if the unit
is turned on but is not actively taking
a sample.
Unit not put in Standby Mode. Select Standby/Charge when shutting
off the instrument if you want the battery
to be charged.
N O T I C E
When charging in “Standby Mode,”
the instrument will shut down when
fully charged.
LOW BATTERY ERROR Low battery. Recharge battery or connect AC cord.
SYSTEM ERROR
Information is not being read properly by
microprocessor. Restart instrument. If problem persists,
contact TSI
®
technical support.
TEMPERATURE HUMIDITY
PROBE ERROR Temperature/RH probe was not
recognized. Detach and reconnect probe. If problem
persists, contact TSI
®
technical support.
FLOW ERROR Instrument was unable to control flow
rate (if any tubing is connected to
particle counter). Restart measurement.
Pressure drop across inlet may be
too large. Lessen pressure drop across inlet by
using larger diameter tubing, less
tubing, and/or adding a bleed valve.
Inlet not at ambient pressure. DO NOT subject the unit to other than
ambient pressure conditions.
LASER POWER / DETECTOR
WARNING Excessive direct light is entering the
aerosol inlet. Remove instrument from direct light.
Optical path blocked. Return to factory for service.
Nozzle is misaligned. Fiber attached on
the nozzle tip. Contact TSI
®
and return to factory.
Detector board damaged. Laser power
is normal. Return to factory or factory authorized
service centers for service.