Gammapilot M FMG60 FOUNDATION Fieldbus
Installation
Hauser
19
Examples
A
B
A0018075
A
Maximum fail-safe mode
B
Minimum point level detection
4.2.4
Installation conditions for density and concentration
measurements
Density and concentration measurement
Conditions
• If possible, density and concentration should be measured on vertical pipes with forward
flow from bottom to top.
• If only horizontal pipes are accessible, the path of the beam should also be arranged
horizontally to minimize the influence of air bubbles and deposits.
• The Hauser clamping device FHG61 or an equivalent clamping device should be
used to fasten the radiation source container and the Gammapilot M to the measuring
tube. → 88
The clamping device itself must be installed in such a way as to withstand the weight of
the source container and the Gammapilot M under all anticipated operating conditions.
• The sample point may not be further than 20 m (66 ft) from the measuring point.
• The distance of the density measurement to pipe bends is ≥3 x pipe diameter, and ≥10 x
pipe diameter in the case of pumps.
Measuring system arrangement
The arrangement of the source container and the Gammapilot M depends on the pipe
diameter (or the length of the irradiated measuring path) and the density measuring
range. These two parameters determine the measuring effect (relative change in the pulse
rate). The measuring effect increases with the length of the radiation path through the
medium. Therefore, it is advisable to use diagonal irradiation or a measurement section for
small pipe diameters.
To select the measuring system arrangement please contact your Hauser sales
organization or use the Applicator™
1)
configuration software. The Applicator™ is available from your Hauser sales organization.
