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Start Up Procedure – 2.2
The following notes are for guidance where local laboratory instructions do not exist or are
inappropriate. They should complement, not replace, existing codes of practice issued by your
Laboratory Safety Officers.
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Ensure power supply to the cabinet is switched on, as evidenced by the main display
being illuminated. The key switch on the front of the cabinet must be turned to position ‘1’ =
(ON).
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Press the green switch ‘A’ on the control panel – this will energise the exhaust fan. The
main display will show `AIRFLOW STABILISING` for 60 seconds, once airflows are settled the
display will show `AIRFLOW SAFE`. On start up the audible alarm will sound until airflows are
safe; this may be muted using the Alarm Mute switch `D’.
NOTE: Should the airflows change significantly and fall out of the specifications laid
down in EN12469:2000 the cabinet alarms will be automatically activated.
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Switch on the interior lighting using switch ‘B’. Lighting can be activated when the
cabinet is OFF; this can be used if loading or un-loading the cabinet with equipment prior to
use.