CTI-CRYOGENICS
HELIX TECHNOLOGY CORPORATION
Section 1
Introduction
1.1 General
The Model 22G350C Cryodyne
C
tryocooler provides
reliable refrigeration at cryogenic temperatures for long,
continuous periods. This cryocooler consists of multiple
combinations of either the Model 22 and/or the Model
350CP Cold Heads.
For clarity purposes, due to the many variations of
Model 22 and 350CP Cold Heads that can be combined
with a compressor as a multiple cryocooler system, the
cryocooler system will be identified throughout this
manual as the 'Model 22C/350C Cryodyne Cryocooler".
The Model 22C/350C Cryodyne Cryocooler, which
uses helium as the refrigerant, is designed to interface
with many kinds of apparatus that require cryogenic
temperatures. The use of a Cryodyne cryocooler as a
source of cryogenic temperatures offers a degree of
freedom in the design of such interfacing apparatus (in
particular, size and operational flexibility) that is
generally unobtainable when a liquid refrigerant is
employed. One immediate advantage of a Cryodyne
cryocooler is that the cold head can be operated in any
orientation without loss of performance. After the end of
an operating period of the cryocooler, the cold head cold
stations can be raised to ambient temperature in a
relatively short time.
This manual provides instructions for initial inspection
and installation, operation, and servicing of the Model
22C/350C Cryodyne Cryocooler. Your cryocooler is
highly-reliable and rugged unit that requires a minimum
of servicing. Functional descriptions of the major
assemblies that comprise the cryocooler are detailed in
Section 4. Servicing instructions are covered in Sections
5 and 6. Section 5 covers troubleshooting in simplified
tabular format. Section 6 presents unscheduled
maintenance instructions; no scheduled maintenance is
required for the cryocooler.
1.2 Model 22/350C Cold Heads
Figures 1.1 and 1.2 show front and rear overall views
of the cold heads, with identification of the major
external components.
1.3 Specifications
Table 1.2 is a summary of specifications for the Model
220350C Cryodyne Cryocooler.
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P/N 8040272
1-1
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