310 Flame Ionization Detector (FID)
Replacement procedures
20 of 24
Jun 2001
Detectors
Agilent 6890 Gas Chromatograph Service Manual
11. Install the RFI shield, the pneumatics cover, and the detector top cover.
12. Connect the source gas lines to the manifold. See Figure 310-17.
Figure 310-17 Gas line connections
Removing the FID interface board
The FID detector has an interface board on the main board as shown on the
following page.
WARNING Before proceeding, turn off the oven and any heated zones and let them cool
down. Turn off any detector gases at their supply, then turn off the main
power switch and unplug the power cord.
Caution Make sure you are properly grounded with an ESD strap before continuing.
1. Unlock and unclip the ribbon cable from the interface board.
2. Unclip the FID ignitor from the interface board.
3. Remove the screw at the top of the card where it mounts to the main
board and pull the card out.
4. Reassembly is the reverse of removal.
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