Labconco Biological Safety Cabinets 34269 Series - Manual (Page 37)

Chapter 5: Using The Cabinet
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Original instructions
Alarm Screens
Sash is too high
The sash is open too far for safe operation.
Airflow Alert
The airflow patterns in the cabinet have changed,
resulting in a sudden change in the motor speed.
This is most likely due to a blockage of the grille or
the exhaust filter outlet. It may also be caused by
removal of the work surface while the cabinet is in
operation.
Airflow Alarm
If equipped with the optional airflow sensor and
the inflow or downflow velocities are excessively
high or low, this alarm will be displayed.
Canopy Alarm
If equipped with the optional canopy connection,
and there is insufficient exhaust system airflow,
this alarm will be displayed. If this alarm is
displayed, the Logic+ blower will need to be
turned off, and then back on again to reset the
alarm.
System Error
The motor and display circuit board are not
communicating properly. DO NOT USE THE
CABINET UNTIL THE PROBLEM HAS BEEN
CORRECTED.
Figure 5-4a
Figure 5-4b
Figure 5-4c
Figure 5-4d
Figure 5-4e