10 Troubleshooting and Maintenance Manual
1 Introduction
The 7200 Accurate-Mass Quadrupole Time-of-Flight GC/MS
System
The 7200 Accurate-Mass Quadrupole Time-of-Flight (Q-TOF) GC/MS System is
a standalone capillary GC detector for use with the Agilent 7890 Series gas
chromatograph. The 7200 Q-TOF features:
• Three turbomolecular vacuum pumps
• Rotary vane foreline pump
• Independently MS-heated EI or CI ion source
• Removable ion source (RIS) probe with bayonet and cooling chamber, which
allows quick change from EI to CI source with minimal loss of vacuum in
the instrument
• Independently MS-heated hyperbolic quadrupole mass filter, which can be
heated to high temperatures, minimizing the contamination typical with
low temperature analyses
• Single hexapole collision cell
• Vacuum-insulated flight tube with dual-stage ion mirror
• Fast electronics, allowing fast sampling rates
• Analog to digital detector
• Independently GC-heated GC/MS interface with automatic retraction
during source removal
Physical description
The 7200 Q-TOF GC/MS is approximately 48 cm high, 71 cm wide, and 89 cm
deep. The flight tube extends 84 cm up over the top of the instrument. The RIS
probe handle, when attached, extends 48 cm from the front of the instrument.
The weight of the instrument is 152 kg for the turbo pump mainframe. The
attached foreline (roughing) pump weighs an additional 22.2 kg.
The basic components of the instrument are: the frame/cover assemblies, the
vacuum system, the GC/MS interface, the removable ion source, the flight tube
electronics, the collision cell, the detector, and the analyzer.
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