Routine Maintenance: Detectors
Maintaining a flame ionization detector (FID)
Released: March 2004 6850 Series II GC User Information page 198 of 256
4. Install the upper collector assembly and tighten the knurled nut finger-
tight.
5. You can now restore normal operating conditions.
Replacing the FID ignition wire
Tools and materials
• T-20 Torx screwdriver
• ESD wrist strap
• New ignition wire assembly (part no. G1531–60680)
Procedure
1. Load the SERVICE method or reset the detector and oven temperatures to
OFF or turn the main power switch off. Let the heated zones cool to room
temperature.
2. Turn the inlet and detector gas pressures off at the sources.
3. Remove the lid top cover.
Collector
Upper insulator
Knurled nut