Figure 24. Turbomolecular Pump - Thermo Scientific LTQ Series Hardware Manual

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Functional Description
Mass Spectrometer
Turbomolecular Pump
30 LTQ Series Hardware Manual
A triple-inlet turbomolecular pump (Figure
MP0 ion guide, and analyzer regions of the vacuum manifold. The turbomolecular pump
mounts under the vacuum manifold.

Figure 24. Turbomolecular pump

High-vacuum inlet
Ion gauge port
The Main Power switch turns off the turbomolecular pump. The electronics service switch
has no effect on this pump. Power to the turbomolecular pump automatically shuts off if the
turbomolecular pump's temperature becomes too high.
The turbomolecular pump sends status information, such as its temperature or rotational
speed, to the data system computer.
24) provides the vacuum for the MP00 rf lens,
Interstage inlet
Molecular drag inlet
Vent valve port
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