About the Clarus 600/560 D System
59
Vacuum System
The source, ion optics, analyzer, and detector are fitted inside a cast aluminum
chamber. Vacuum is applied to the chamber using a rotary pump and a
turbomolecular pump. The vacuum is monitored through a wide range gauge. The
rotary pump sits on the floor and a turbomolecular high vacuum pump or an air-
cooled oil diffusion pump (Clarus 600 D) is mounted under the ion optics chamber:
Rotary Pump
The Clarus 600 MS has a 3 m
3
/hr computer controlled mechanical pump. The
turbomolecular or diffusion pump is backed by this direct drive rotary pump. The
rotary vane pump rests on the lab floor and may be positioned beneath the
instrument. Care should be taken to avoid mechanically coupling vibrations from
this pump to the mass spectrometer. Operation and maintenance details about these
pumps can be found in the manuals provided with the pump
.
The rotary vane pump (also called the forepump) provides the first level of vacuum
to approximately 2 x 10
-3
Torr. The pump has a switchable dual voltage.
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