Berthold LB 442, Operating Manual

Page: 12 / 158

2.3 Measuring Configuration
10
The power supply for the detector and the measuring signal
(pulses) are transmitted via the two-wire cable connected between
detector and evaluation unit.
Different configurations and mounting devices may be required,
depending on the conveyor system and the measuring tasks.
2.3.1 Configuration on Conveyor Belt
Figure 2 shows a basic setup on a conveyor belt . Basically, this
setup is the same for screw and chain conveyor types.
Measuring
Frame
Szintillation
Counter
Product
Conveyor Belt
Rod Source
Figure 2: Measuring system mounted on conveyor belt
The foot of the measuring frame contains the shielding container
with the rod source which is typically installed below the conveyor
belt.
The
detector is mounted on the crossbeam of the measuring
frame, so that the detector opening is located directly above the
radiation exit channel of the shielding.
Detector and evaluation unit are connected via two-wire cable.
The optional tachometer is connected to the evaluation via 3-wire
cable.
See 13.5 Wiring Diagram in the Appendix on page 144.