Remove/Replace Fid Collector Body/Collector Assembly - HP 5890 SERIES II Service Manual

Remove/Replace FID Collector Body/Collector Assembly

The FID collector body may be replaced as a piece part, or the entire collector assembly may be re-
placed as a unit. Refer to section 2 of the IPB portion of this document for part number information
applicable to the FID detector.
HAZARDOUS VOLTAGES ARE PRESENT IN THE INSTRUMENT WHEN THE
`
POWER CORD IS CONNECTED. AVOID A POTENTIALLY DANGEROUS SHOCK
HAZARD BY DISCONNECTING THE POWER CORD BEFORE WORKING ON THE
INSTRUMENT.
FLAME IONIZATION (FID) DETECTORS USE HYDROGEN GAS AS FUEL. BE
`
SURE ALL HYDROGEN GAS IS TURNED OFF AT ITS SOURCE BEFORE
REPLACING ANY FLOW COMPONENTS.
1. Set the main power line switch to the off position.
2. Disconnect the power cable from its receptacle.
3. Allow time for the oven and heated zones to cool.
4. When the heated zones are cool, turn off all gas
supplies.
5. Lift the hinged top cover at its front edge,
exposing the detector area.
6. TO REPLACE COLLECTOR BODY:
a. Remove the optional PTFE chimney, if in-
stalled.
b. Disconnect the ignitor wire
lead connector at the mating
connection adjacent to the
ignitor.
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