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Type B2 Prefilter Replacement
A Type B2 biosafety cabinet has a prefilter on top of the cabinet, to the left of the
electronics module. This prefilter removes large particulate from the room air drawn into
the biosafety cabinet by the supply blower. When this prefilter becomes loaded with
particulate, replace it as follows.
Note:
The prefilter is not washable, it must be replaced when dirty.
1.
Turn off the biosafety cabinet’s blower.
2. Following all facility safety requirements, use a step ladder to access the prefilter
atop the biosafety cabinet.
3. Remove the two thumbnuts that hold the prefilter in place. See Figure 12-46.
4. Remove and replace the prefilter.
Figure 12-46
Thumbnuts
Prefilter
Summary of Contents for Logic+ A2
Page 149: ...149 208 240V...
Page 151: ...151 Blower only will not start...
Page 152: ...152 Lights only will not illuminate...
Page 153: ...153 UV Light will not illuminate...
Page 154: ...154 Airflow Alert activating...
Page 155: ...155 Filter Life Gauge not at 100 when new...
Page 156: ...156 Contamination in the work area...
Page 200: ...200 Figure 23 4 1 2 4 3 5 7 6 8 8...
Page 201: ...201 END OF 3849920 Figure 23 5 9 10 11 12 13...