Labconco Biological Safety Cabinets 34608 Series - Manual (Page 30)

Chapter 5: Using The Cabinet
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Fluorescent light
In this mode the fluorescent lights are operating. When the sash is
fully closed, the fluorescent lights automatically turn off.
UV light
In this mode the UV (germicidal) light is operating. When the
sash is fully closed, the UV light can be programmed to
automatically turn on. When the sash is raised, the light
automatically turns off, to protect the laboratory from UV
irradiation.
Timer
When either the interval or stopwatch timer mode is active, this
icon appears.
Security Lock
When the security lock is activated the keypad does not respond to
any buttons until the proper sequence of keystrokes is entered.
Mute
When this icon is on, the audible alarm is muted for
approximately 5 minutes.
Operating the Sliding Sash
The counterbalanced, anti-racking sash mechanism requires only a few
pounds of force to move the sash up or down. You can open or close the sash
smoothly with one or two hands positioned on either handle.
The sash position alarm and safety interlock system senses the sash position
and acts appropriately. The Biosafety Cabinet has been programmed to
operate at either an 8- or 10-inch (203-254 mm) sash opening, depending on
model. Raising the sash above its operating height will activate the audible
and visual alarms. The audible alarm can be temporarily muted (for
approximately five minutes) by depressing and releasing the Mute/OK
button. Closing the sash back to its operating position will reset the alarm and
defeat the muting of the alarm. The safety interlock system senses when the
sash is closed and allows the optional ultraviolet (UV) lamp to operate only
when the sash is closed, to protect the operator from irradiation.