2.4 Instrument Description
16
Opening the radiation exit channel (see Figure 6)
1. Unscrew hexagon head cap screw (b) at lever (a).
2. Insert key in lock (c).
3. Push in lock and turn key to open the lock. Now you can move
the radiation exit channel by turning the lever (a).
4. Turn lever until the arrow points straight up and the bore hole
on the metal plate sits over the respective threaded bore hole.
5. Turn in hexagon head cap screw and tighten it firmly (!). The
source must sit absolutely tight, so that possible vibrations of
the conveyor system cannot move the source in the shielding.
6. Turn key in lock and pull it out.
Figure 7: Measuring frame - side view
Detector
Connection to
evaluation unit
Shielding
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