Density Meter LB 444 SECTION 2. SYSTEM DESCRIPTION
6
45° and 30° mounting devices are available to extend the measuring path (see
enclosed Technical Information LB 444).
The detector-source arrangement may vary depending on the measuring path. If
measuring paths have the shape of a U or S the shielding must be installed at
the top, the detector at the bottom, as shown in Figure 3.
RADIOACTIVE
Figure 3: Installation on a U-shaped measuring path
The system may have to be installed on external supports when the heat insu-
lating material of the pipeline does not allow safe installation (e.g. glass and rock
wool) or when strong vibrations are likely to damage the detector. For further
explanation see section 3. INSTALLATION.
For all installations, precautions must be taken to prevent persons reach-
ing into the active beam.
Measurements in Containers
Density or concentration measurements can also be carried out in a tank or
container and for this purpose, the source in a shielding is installed into a pro-
tection pipe inside the container (see 0 Installation in a Container).
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