Installation
2-10
P/N 8040613
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
Cryopump Storage
WARNING
If the cryopump has been used to pump toxic or dangerous materials, you
must take adequate precautions to safeguard personnel. If such a
cryopump is shipped to a Product Service Department, clearly mark on
all storage cartons the identity of the toxic or dangerous materials to
which the cryopump has been subjected. All shipped equipment that
contains hazardous/toxic materials must conform to DOT regulations.
If the cryopump is stored while attached to your vacuum system, the
cryopump vacuum vessel should be kept at a slight positive atmospheric
pressure with dry nitrogen or argon.
If the cryopump is removed from your vacuum system, install the
protective cover on the mounting flange of the cryopump vacuum vessel
inlet before storage.
The remaining components of your Cyro-Torr high vacuum pump system
are fully protected during storage if kept under positive helium pressure
and all component connections left connected. Periodically, check the
helium supply pressure gauge on the compressor and refer to the
compressor manual for the proper static charge pressure.
