Labconco Biological Safety Cabinets 34610 Series - Manual (Page 29)

Chapter 5: Using The Cabinet
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Exhaust Error
If the volume of exhaust air leaving the cabinet falls below a safe level,
this message is displayed, the cabinet blower turns off, and an audible
alarm sounds. Pressing the “Blower” button will restart the blower. If
there is still insufficient airflow, the alarm will sound again. IF THE
CABINET KEEPS GOING INTO EXHAUST ERROR, DO NOT USE
THE CABINET UNTIL THE PROBLEM HAS BEEN CORRECTED.
System Error
The motor and display circuit board are not communicating properly.
DO NOT USE THE CABINET UNTIL THE PROBLEM HAS BEEN
CORRECTED.
Data Area
The Data Area displays the Filter Gauge. This bar graph displays the percent
of remaining supply filter life. When the cabinet is new, or after the supply
HEPA filter is replaced, the gauge will be “full”, or display approximately
100%. As the filter loads, or if the prefilter is blocked, the bar graph will
show a reduced filter life.
The graph is user-selectable as a bar graph with percentage displayed, a bar
graph only, or a semi-circular graph showing filter life remaining.
Various factors such as temporary obstructions to airflow, temperature and
barometric pressure can cause the displayed percentage to vary slightly.
Ignore short term changes in the Filer Gauge’s value. As the Filter Gauge
approaches 20% remaining capacity, consider having the cabinet filter
replaced.
The inflow velocity is also displayed during operation.
Icon Area
The Icon Area displays icons for those features selected or in operation. The
Icons are:
Normal blower operation –
In this mode the cabinet blower is operating normally.
Fluorescent light
In this mode the fluorescent lights are operating. When the sash is
fully closed, the fluorescent lights automatically turn off.