Replacing The Photomultiplier Assembly - ABB PGC2000 Operation And Service Manual

Replacing the Photomultiplier Assembly

Refer to Figure 8-12 as you perform this procedure.
Cables
Photomultiplier
FPD Electrometer in Controller Housing
Figure 8-12. FPD PHOTOMULTIPLIER ASSEMBLY END VIEW
1. Remove power from the analyzer.
2. Turn off oven air to the isothermal oven and allow all temperature zones to cool.
3. Turn off air supply to air cleanup unit.
4. Open the door on the left side of the analyzer.
5. Disconnect the cables to the Photomultiplier Assembly and set them aside.
6. Remove the four nuts securing the Photomultiplier Assembly to the analyzer, being careful to
retain the nuts to reinstall the Photomultiplier Assembly.
7. Carefully pull the Photomultiplier Assembly straight out of the analyzer.
8. Reinstall the Photomultiplier Assembly in reverse order of removing it.
2000-OSM, F1
(in Controller Housing)
Nuts
Early Version
FPD Electrometer
Cables
Photomultiplier
FPD Electrometer in FPD Enclosure Box
Electrometer
Nuts
Current Version
FPD
8-31