To Reinstall The Ei Calibration And Vent Valve Assembly - Agilent Technologies 5975C TAD VL MSD Troubleshooting And Maintenance Manual

To Reinstall the EI Calibration and Vent Valve Assembly

Materials needed
• Calibration valve (G3170-60204)
• O-ring for calibration valve (0905-1217)
• PFTBA (05971-60571) or other tuning compound
• Screwdriver, Torx T-15 (8710-1622)
Procedure

1
2
3
4
5
6
7
8
Failure to purge the calibration valve will damage the filaments and detector.
CA UT IO N
5975 Series MSD Troubleshooting and Maintenance Manual
Remove the old valve assembly. See
Be sure the valve O-ring is in place. If it is worn or damaged, replace it.
Install the calibration and vent valve assembly and tighten the screws that
hold it in place.
Reconnect the calibration valve cable to the connector next to the fan.
Remove the vial from the new calibration valve. See
supplied with a vial already installed.
Fill and reinstall the calibration vial. See
Pump down the MSD.
Select Purge Calibrant Valve from the Vacuum menu in the Tune and Vacuum
Control view.
General Maintenance
page 112 and Figure
page
page 109.
4
13.
109. The valve is
113