Table of Contents
Advertisement
Chapter 4 -† Basic Cabinet Operation
4.1.桠 Sash Window Operation
4.1.1.桠Sash Window State
Sash is fully open
Blower can be active†
Fluorescent lights can be used
Unsafe working condition
4.1.2.桠Operating Motorized Sash Window (Only for BSC with motorized sash window)
The motorized sash uses a "push and hold" mechanism, so if you remove your finger from the button the sash
will stop immediately – this is a safety feature to control the closure and prevent anything getting trapped in
the aperture as the sash descends.
Lower Sash from Fully Open Position
When the sash is fully open, pressing the down button and holding it will cause the sash to move to the Safe
Height setting and stop. If the fluorescent lights are on as the sash descends, they will stay on as long as the
sash stops in the Safe Position. If you release the button before the sash has reached Safe Position the lights
will switch off automatically.
Lower Sash from Safe Height Position
When the sash is at safe operating height, pressing the down button and holding it will cause the sash to move
down to the fully closed position and stop. If the fluorescent lights are on as the sash descends, they will
switch off automatically as soon as the sash is fully closed. If you release the button before the sash has
reached the fully closed position, the lights will switch off automatically.
Raise Sash from Fully Closed Position
When the sash is fully closed, pressing the up button and holding the sash will move up to the Safe Height
setting and stop.
Sash is in safe position
Blower can be activated†
Fluorescent lights can be used†
Safe working condition
Figure 3.1. Sash window positions.
Class II Biological Safety Cabinets
Sash is fully closed
Blower can't be activated†
Fluorescent lights unusable†
15
Advertisement
Table of Contents
