
INTRODUCTION
7
Helium Compressor, Model F-20L
The compressor is designed to deliver high-pressure, oil-free, helium gas to cryogenic
refrigerators. Cold head cables are used with the compressor to supply electrical power to cold
heads. Self-sealing gas couplings allow for easy connection to and disconnection from the rest
of the closed-cycle cryogenic refrigeration system.
The information in this manual pertains only to the F-20L (low voltage model) Compressor.
Other components used to form an operating system are described in separate technical
manuals.
Pressures are stated as gauge, not absolute. Pressure units are bar and pounds per square
inch (psig). For reference:
1 bar = 14.5 psig.
1 MPa = 10 bar
Definition of Symbols used in this manual and on equipment:
Содержание F-20L
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Страница 23: ...Specifications 19 Figure 2 F 20L Compressor Front View...
Страница 24: ...Specifications 20 Figure 3 F 20L Compressor Dimensions Dimensions are in inches and mm...
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Страница 53: ...Troubleshooting 49 Figure 19 F 20L Compressor Wiring Diagram...
Страница 54: ...Troubleshooting 50 Figure 20 F 20L Compressor Wiring Schematic...