Labconco FreeZone Clear Stoppering Chambers - Manual (Page 23)

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Chapter 4: Using Your Clear Stoppering Chamber
Product Service: Domestic 1-800-522-7658, International 816-333-8811
Operation Checklist
The following checklist should be followed prior to each use of
your Clear Stoppering Chamber.
1. Wipe the interior of the chamber with a soft cloth or paper
towel to remove any accumulated moisture.
2. Wipe the upper and lower gasket surfaces with a soft, lint-
free cloth or paper towel to remove any dirt or
contaminants that could cause a vacuum leak. Vacuum
grease is not required on the gaskets to obtain a proper
vacuum seal.
3. Make sure that the vacuum break valve is closed.
Operating the Clear Stoppering
Chamber
Freeze Drying
1. Prepare the Freeze Dry System for operation in accordance
to its instruction manual.
2. Turn on the Freeze Dry System.
3. Freeze samples in vials and partially stopper the vials.
4. After the Freeze Dry System reaches –40° C, frozen
samples may be loaded onto the shelves. If samples vials
are to be stoppered, the vials must be loaded symmetrically
onto the shelves. There should be at least three vials on
each shelf and all vials on a shelf must be the same size.
After loading the shelves with samples, carefully install the
Clear Chamber and Stoppering Assembly.
Rotate the stoppering assembly clockwise until all 3 tabs
with slots fully engage the 3 rods.
5. Turn on the vacuum pump.
6. When the desired vacuum level is reached (typically around
133 x 10 -3 mBar) the shelf heaters may be turned on. The
freeze drying process is now taking place.
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