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Installation
The figure below shows the GCF400 with the black insulation ring, locked
down in the chamber by means of the retaining clips.
Figure 2. GCF400 locked down in chamber
This will fully seal the chamber. Withdraw the flask again and verify
that the level of CryoCool came to within about a half-inch (12–15
mm) from the top (shoulder) of the flask. If the level is low,
carefully pour more CryoCool into the chamber while holding
down the flask. Immediately wipe clean any CryoCool that spills onto
the rubber chamber seal or Flask Cover.
3.5 GF4000 (use with
The GF4000 is a wide-mouth threaded flask used exclusively with the
SC250EXP only)
SC250EXP SpeedVac system. The wide mouth facilitates easier cleaning
and removal of solvents.
A black insulating cover fits over the flask to seal in the cold and seal out
atmospheric condensation from the refrigerated chamber. A large
polypropylene vacuum connection fits over the top and is secured by means
of a threaded poly nut, and tubing attaches to this by means of stainless steel
fittings. This forms the vacuum connection.
Thermo Fisher Scientific
5
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