Berthold LB 442, Operating Manual

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Section 2 System Description
13
2.4.2 Measuring Frame for Conveyor Systems
The measuring frame is a special construction for conveyor belts,
chain and screw conveyors; its foot includes the lead shielding for
the rod source . The detector is mounted to the crossbeam using
the supplied installation set. The product being measured flows be-
tween source and detector, with the source generally mounted be-
low the stream of material to be conveyed.
Another frame installation is required for hot products if a heat
guiding plate or a water cooling protecting the detector cannot be
installed. For this application, the detector is mounted below and
the shielding with the source above the stream of material to be
conveyed.
There are two different types of measuring frames, the Co-
balt/Cesium version and the Americium version.
Co or Cs version : the detector is mounted horizontally using two
holding shackles below the crossbeam. Use the installation set en-
closed with the instrument for installation.
Americium measuring frame : the detector is installed vertically
using the clamping device attached in the center part.
Detector Detector holder
a
c
b
d
e
Figure 4: Measuring frame