Labconco Protector 3944300 User Manual page 48

Chapter 8: Troubleshooting
PROBLEM
Airflow monitor
malfunction.
44
CAUSE
No power.
No lights.
No display.
No audible alarm.
Wrong alarm set
point.
Constant audible
alarm.
Continuous
alarm.
Monitor alarms;
air way to airflow
monitor sensor is
blocked by
insects, dust or
debris.
Audible disable
will not stay ON
CORRECTIVE ACTION
Power supply is not plugged into
proper voltage; plug in power
supply. Verify that airflow
monitor interface cables are
connected. Check fuses on
FilterMate or accessory light.
Alarm has been temporarily
silenced using "test/reset" or
"enter" buttons.
Airflow monitor was not properly
adjusted. Repeat calibration
steps outlined in the airflow
monitor manual.
Check airflow and calibration of
airflow monitor.
Check the face velocity of the
enclosure as the airflow may
have changed. If face velocity is
correct, calibrate the airflow
monitor as outlined in the User's
Manual.
Lightly clean the airway with
clean air. Be careful not to touch
sensitive electrical components.
An alarm condition must be
continuously present before the
audible alarm can be silenced. If
flow conditions fluctuate near the
alarm set point, the airflow
monitor will automatically reset
itself. Action should be taken to
bring the hood airflow into proper
operating parameters or adjust
the alarm set point lower.
Product Service 1-800-522-7658