56926BA2, Rev. 02, 04/2019
8.6 Replacing the Scintillator
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Danger to life from electric shock!
u The installation may only be carried out by a qualified electrician.
u Please adhere to the relevant safety regulations.
u Installation/maintenance may only be carried out if the device has been de
energised.
u Only open the device when free of voltage.
In case of an electric shock, carry out first aid measures and immediately call an
emergency service.
Danger to life by explosion!
u
If the detector is located in a potentially explosive atmosphere, it is essential
to observe the corresponding instructions and safety instructions in the
safety manual (chapter 2).
Disassembling the Scintillator
The multiplier should not be subject to bright light during the following working
steps.
1. Remove the electronics module through the action steps 1 - 7 as described in
the chapter 8.5.1.
2. Point detectors: Carefully screw off the scintillator from the photomultiplier.
Rod detectors: Remove the scintillator carefully from photomultiplier.
3. Clean the optical contact surfaces with a soft cloth from silicon oil residues.
Installing the Scintillator
1. Before assembly, apply a drop pure silicon oil (BERTHOLD ID no. 18844) be-
tween the scintillator and the multiplier and slightly distribute it by rubbing
to ensure a good optical connection between the two components.
2. Reassemble the scintillator and the multiplier and install the holder by retight-
ening the 4 Phillips screws.
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