Labconco Biological Safety Cabinets 34269 Series - Manual (Page 70)

Appendix F: Installation Guide Pure-Vu Seals/Stand-Still Isolation Platforms
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Original instructions
Stereoscopes with forward extending bases and frequent eyepiece height
adjustment typically require the selection of a Pure-Vu XL Seal and Stand-
Still XL Isolation Platform. Figures F-3 through F-10 are an aid in setting up
the pleated Pure-Vu XL Seal. Figures F-11 and F-12 show typical complete
installations of stereo microscopes and proper placement of the Stand-Still
XL Isolation Platform. Listed next are instructions for setting up the pleated
design of the Pure-Vu XL Seal.
1. Per Figure F-3, with the outer aerodynamic collar removed, place the
Pure-Vu XL Seal over the inner aerodynamic mounting collar.
Locate the top five holes and secure with transparent tape as shown.
Pure-Vu XL Seals allow for eyepiece height flexibility of +/- 2.0" (51
mm).
Figure F-3
2. Per Figure F-4, form the first pleat and secure with transparent tape.
The seal shown has pre-cut eyepiece holes (Labconco #4027811) and
is designed for the upper portion of the glass cutout. This upper
portion of the glass cutout is used frequently with stereoscopes.
However, should you need a pleat at the middle or lower position of
the glass cutout, then the pleat can be moved lower when setting up
the Blank Pure-Vu XL Seal (4027810). See Figure F-4.
Figure F-4