Maintaining A Sampling Valve (Diaphragm Type) - Agilent Technologies 6850 Series II User Information

Remove vent lines,
if installed
Lift off
detector cover
(if desired)
Lid top cover for FID/TCD/µECD, without valve box accessory, is shown
Figure 15. Removing the lid top cover

Maintaining a sampling valve (diaphragm type)

This section describes routine maintenance for diaphragm-type sampling
valves.
Replacing the gas sampling valve loop and diaphragm
Tools and materials
•
•
Procedure
1.
2.
3.
Released: March 2004
9/64-inch hex key (Allen) wrench
T–10 Torx driver
Load the SERVICE method or reset the inlet and oven temperatures to
OFF or turn the main power switch off.
Turn the carrier gas off at the source.
Remove the top cover.
6850 Series II GC User Information
Routine Maintenance: General
Maintaining a sampling valve (diaphragm type)
Remove T-20
Torx screws
(8 places)
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