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Jun 2001
Detectors
Agilent 6890 Gas Chromatograph Service Manual
Flame Photometric Detector (FPD) 350
Replacement procedures
6. Loosen the three screws that secure the detector to the clamp and the
sheet metal.
Figure 350-7 Removing the FPD housing from the support bracket.
7. Use two wrenches to loosen the Swagelok connection between the jet
assembly and the heated transfer tube.
8. Carefully lift the detector module and jet assembly off of the transfer tube
and out of the GC. Be careful not to damage the fused silica gigabore liner.
When cleaning or replacing the jet, it is not necessary to disconnect any
plumbing, ignitor leads or the heater/sensor. Leave all attached and
disconnect the detector block from the transfer line at the Swagelok
fitting, then gently lift the block and rotate it enough to access the jet.
Vent line
Ignitor
Loosen screws
Ignitor cable
Heater transfer line nut
Heater block
U-clamp screws
(one screw hidden)
Jet assembly
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