Labconco Guardian Jr. Airflow Monitors 4865001 - Manual (Page 24)

TROUBLESHOOTING
21
Symptom Suggested Recommendations
No Lights Power supply not plugged into proper voltage; plug in
power supply. Monitor rear connection is
disconnected; verify that the connector is correctly
installed.
No Audible Alarm Alarm has been silenced using test/reset button.
Wrong Alarm Set Point Potentiometer was not properly adjusted. Repeat
calibration steps outlined in this manual.
Continuous Alarm Blower speed has changed. Performance traverse to
verify that the calibration has not changed. Check
blower speed, adjust if required. Check calibration
using traverse technique, recalibrate monitor as
instructed if required.
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 alarm
will automatically reset itself. Action should be taken
to bring the fume hood airflow into proper operating
parameters.
Constant Audible Alarm Check airflow and calibration.
If problems persist with the Guardian Jr. Airflow Monitor, contact Labconco Product Service
directly at 1-800-522-7658, for assistance.