Labconco Protector Demonstration Hoods 3945021 - Manual (Page 48)

Chapter 8: Troubleshooting
Product Service 1-800-522-7658 44
PROBLEM CAUSE CORRECTIVE ACTION
Airflow monitor
malfunction. No power.
No lights.
No display. 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.
No audible alarm. Alarm has been temporarily silenced
using “test/reset” or “enter” buttons.
Wrong alarm set
point. Airflow monitor was not properly
adjusted. Repeat calibration steps
outlined in the airflow monitor
manual.
Constant audible
alarm.
Check airflow and calibration of
airflow monitor.
Continuous alarm. 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.
Monitor alarms; air
way to airflow
monitor sensor is
blocked by insects,
dust or debris.
Lightly clean the airway with clean
air. Be careful not to touch sensitive
electrical components.
Audible disable
will not stay ON
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.