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Servicing
Photomultiplier Tube Replacement
Photomultiplier
Replacement
7-16
Model 43i Trace Level-Enhanced Instruction Manual
Figure 7–8. Replacing the Flash Intensity Assembly
Use the following procedure to replace the photomultiplier tube.
Equipment Required:
Tube
Photomultiplier tube
Philips screwdriver
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly ground antistatic wrist strap must
be worn while handling any internal component.
1. Turn analyzer OFF, unplug the power cord, and remove the cover.
2. Disconnect the high voltage cable from the PMT power supply cable
connector and unplug the BNC cable from the input board connector.
Retaining Screws (3)
Flash Intensity Assembly
▲
Thermo Fisher Scientific
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Troubleshooting
