Agilent Technologies 7250 Troubleshooting And Maintenance Manual page 12

1 Introduction
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Vacuum gauge
The 7250 Q-TOF GC/MS is equipped with three ion vacuum gauges:
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The MassHunter Workstation can be used to read the pressure (high vacuum) in
the vacuum manifold, at the turbomolecular vacuum pump discharge, and the
flight tube.
Ionization modes
The 7250 Accurate-Mass Q-TOF GC/MS can operate in EI mode using the
standard LE-EI ion source or in CI mode using the optional CI MS system. In
electron impact mode, the Q-TOF can operate in standard or low-energy modes.
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Ion source
Flight tube electronics
Collision cell
Detector
Analyzer
Vacuum manifold chamber
TOF vacuum manifold chamber
Turbomolecular vacuum pumps exhaust
7250 Accurate-Mass Q-TOF Troubleshooting and Maintenance Manual