10 Troubleshooting and Maintenance Manual
1 Introduction
The 7000 Series Triple Quad GC/MS
The 7000 Series Triple Quad GC/MS is a standalone capillary GC detector for
use with the Agilent 7890A Series gas chromatograph. The Triple Quad MS
features:
• One split flow turbomolecular vacuum pump
• Rotary vane foreline pump
• Independently MS heated ion source
• Chemical and electron-ionization modes available (PCI/NCI/EI)
• Two independently MS heated hyperbolic quadrupole mass filters
• Single hexapole collision cell
• High-energy dynode (HED) electron multiplier detector
• Independently GC heated GC/MS interface
• Independently GC controlled collision cell gas flows
• High sensitivity electronic upgrades for the EI source and HED available
• Local control panel (LCP) for locally monitoring the MS
Physical description
The 7000 Series Triple Quad GC/MS is a rectangular box, approximately 47 cm
high, 35 cm wide, and 86 cm deep. The weight is 59 kg for the turbo pump
mainframe. The attached foreline (roughing) pump weighs an additional 11 kg.
The basic components of the instrument are: the frame/cover assemblies, the
vacuum system, the GC/MS interface, the ion source, the electronics, the
collision cell, the detector, and the front and rear analyzers.
Local control panel
The local control panel allows local monitoring of the MS instrument status.
Vacuum gauge
The 7000 Series Triple Quad GC/MS is equipped with two ion vacuum gauges.
The MassHunter Workstation can be used to read the pressure (high vacuum)
in the vacuum manifold and at the turbomolecular vacuum pump discharge.
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