5 Maintenance and Inspections
5.5 Replacing Photomultiplier
67FPD-2010
4.
Slowly pull out and remove the photomultiplier to the side while holding it with both hands.
In order to prevent light entering into the removed photomultiplier, cover the opening of the
photomultiplier with aluminum foil and the like.
Photomultiplier
Fig. 5.5.4
5.
Remove the two fixing screws on the photomultiplier socket.
Socket
Fixing screw
Sheet metal
Rubber plate
O-ring
Photomultiplier
Fig. 5.5.5