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6 Operation
6.1 Principle of Operation
The SHLD 2 is a source holder designed for shielding radioactive sources such as
Cs-137. The radioactive source in the source container emits gamma rays. The
SHLD 2 is mounted on the vessel, the pipeline, or on a conveyor belt/spiral
conveyor directly opposite the sensor. The source container shields the
environment against gamma radiation and protects the radioactive source against
mechanical damage or chemical influences.
Switching on Radiation
Figure 6.1
Switching on Radiation with Manual Operating Lever
A. Source holder switched off - operating lever in position "OFF" (2)
B. Source holder switched on - operating lever in position "ON" (1)
1. Switching position "ON"
2. Switching position "OFF"
Before switching on the radiation, make sure that no one is
inside the radiated areas or inside the vessel.
Only trained personnel may switch on the radiation.
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