Labconco PURICARE Procedure Station Models 31260 User Manual
Page 82
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82
7.
Open one Laskin nozzle.
8.
Ensure the pressure gauge on the generator is reading 20 +/- 1 PSIG.
9.
Scan the downstream side of the HEPA filter by passing the sampling nozzle of
the gun in slightly overlapping strokes over the entire surface of both of the
filters, with the sampling port not more than 1 inch from the surface of the filter
media. Scan the entire periphery of the filters and the gaskets between the filter
frame and the Logic+ frame. Scanning shall be done at a traverse rate of not
more than 2 inches per second.
Note: Operation of the photometer may become erratic when testing the front edge of
the supply filter frame, due to aspiration of room air into the front of the work area. This
problem can be minimized or eliminated by placing the edge of a sheet of rigid plastic or
metal at the edge of the filter gasket when scanning this area, as shown in Figure 5-13.
Figure 5-13
Acceptance
Aerosol penetration shall not exceed 0.01%.
Reassembly
When reinstalling the supply filter diffuser, ensure that the two holes in the back edge of
the diffuser engage the diffuser support posts on the rear wall of the work area, as
shown in Figure 5-14. Reinstall the prefilter.
Figure 5-14
Diffuser pins engaging the holes in the rear of
the diffuser.
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