Agilent Technologies 5975T LTM GC/MSD, Troubleshooting And Maintenance Manual

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158 Troubleshooting and Maintenance Guide
10
General Maintenance
To Replace the Electron Multiplier Horn
Materials needed
• Electron multiplier horn (G3170-80103)
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
Procedure
1
Vent the instrument.
2
Open the analyzer chamber.
3
Open the retaining clip ( Figure 19 ). Lift the arm of the clip
up and then swing the clip away from the electron multiplier
horn.
4
Remove the electron multiplier horn.
5
Install the new electron multiplier horn.
6
Close the retaining clip.
The signal pin on the horn must rest on the outside of the
loop in the contact strip. Do not put the signal pin on the
inside of the loop in the contact strip. Incorrect installation
will result in poor sensitivity or no signal.
7
Close the analyzer chamber.
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