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16
Raise Sash from Safe Height Position
When the sash is in safe operation position, pressing the up button and holding it will cause the sash to move
up to the fully open position and stop. If the fluorescent lights are on as the sash rises, they will stay on as long
as the sash is allowed to fully open. Stopping the sash midway will cause the lights to switch off automatically.†
4.1.3.桠Using Sash Window
桠 † The sash window should be fully closed when the cabinet is not in use. This helps to keep the work
zone interior clean.
桠 † The sash window should always be at the normal operating height at all times when the cabinet is in
use. Even if the cabinet is left unattended, while the blower is on, the sash window should never be
moved from the normal operating height, unless during loading or unloading of materials/apparatus
into the cabinet.
桠 † The alarm will be activated whenever the sash window is moved from the normal operating height.
桠 † Whenever the sash window is moved to the correct height from a higher or lower position, the light
will automatically be turned on as a signal to the user.
桠 † The sash window may be opened to its maximum position for the purpose of loading/unloading of
materials/apparatus into/from the cabinet. When the sash window is fully opened, the alarm sound
may be muted by pressing MUTE button but the alarm will automatically sound again after 30
seconds (default is 30 seconds but can be set up to 5 minutes) to remind the user that it is not safe to
work in the cabinet and the light will be turned on to facilitate cleaning.
4.2.桠 Starting and Shutting Down the BSC
4.2.1.桠Turning on the BSC
1.†Raise the sash to the indicated normal operational height (READY state). The lamp will turn on when
this height is reached.
Note: When Quickstart mode is selected, fan will turn on as well, without pressing the fan button.
2.†Turn on the fan by pressing the FAN button. Input the Fan PIN if asked (if PIN ≠ 0000). This will start
the warm up procedure (default: 3 minutes). All buttons are disabled during warm up period.
3.†The BSC is ready for work.
4.2.2.桠Turning off the BSC
1.†Turn off the fan by pressing the FAN button. Input the Fan PIN if asked (if PIN ≠ 0000). This will start
the post purge procedure (default: 0 minute). All buttons are disabled during post purge period.
2.†Lower the sash to the fully closed position (the display will show Sash: Fully Closed). The sash can be
lowered immediately after turning off the fan as it will not interrupt the post purge procedure.
3.†Turn on the UV lamp (when present) to decontaminate the work area by pressing the UV button.
Leave the UV lamp on to make sure the decontamination is done effectively. The UV lamp can only be
turned on after the post purge procedure is finished.
4.3.桠 Working in the BSC
桠 † Allow the BSC to purge any contaminant by allowing the blower to operate for at least 3 minutes
before and after using the BSC (see Section 3.2.1.4 and 3.2.1.5 of this manual for more information).
桠 † Wear appropriate personal protective equipment (PPE) determined by your risk assessment prior to
working in a BSC.
桠 † Adjust stool height to achieve a comfortable working position.
桠 † Perform surface decontamination on the work area (work surface, back and side walls, UV lamp,
electrical outlets, service fixtures and the inner surface of the sash window) before and after using the
BSC. Filter diffuser should not be wiped to prevent filter damage. Where bleach is used, a second
wiping with sterile water should be carried out to remove any residual chlorine that may corrode
stainless steel surfaces.
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