Routine Maintenance: Detectors
Maintaining the flame photometric detector (FPD)
Released: March 2004 6850 Series II GC User Information page 211 of 256
5. Place the new filter in the recess so that the silvered side faces the flame.
6. Push the PMT housing as far onto the detector body as it will go.
7. Install the retaining spring around the housing.
8. Restore power.
Replacing the FPD flow module
Tools and materials
• 7/16-inch wrench
• T-20 Torx driver
To remove the flow module
Warning Be careful! The oven and/or detector may be hot enough to cause burns.
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 off all supply gases at their sources.
3. Turn off the instrument and remove the power cord.
4. Disconnect all gases from the bulkhead connectors on the back of the
instrument.
5. Remove the lid top cover.
Caution Use electrostatic discharge precautions during this procedure.
Place filter here
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