04/03 347 LB 444
4
2.4 Measuring Configuration
Measuring systems for density, concentration and mass flow measurements typically
comprise the following components:
• Radioactive source (a)
• Shielding container (b)
• Detector (c)
• Evaluation unit LB 444 (d)
• Mounting device (e)
• Connection cable (f)
• Resistance thermometer Pt 100 (option) (g)
• Cooling jacket for detector (option)
The detector’s power supply and the measuring signal (pulses) are transmitted via the
cable connected between detector and evaluation unit.
Figure 2: Measuring system mounted on a pipeline
Different configurations and mounting devices may be required, depending on the meas-
uring tasks, the condition of the product being measured and the containers.
Figure 2 shows a basic setup in a pipeline with Pt 100 resistance thermometer and a 90°
mounting device for density, concentration and mass flow measurement.
45° and 30° mounting devices are available to extend the measuring path.
U or S-shaped measuring paths may be used for smaller pipeline diameters. Measure-
ments in containers are also possible (see 5.2.2).
EG&G
BERTHOLD
enter
clear run
BERTHOLD
LB 444 - V 2.10
Density - Met er
etc.
enter enter
enter
clear
run
347
a, b
e
g
c
e
f