Endress+Hauser Gammapilot FMG50 - Installation Conditions for Concentration Measurement

Mounting Gammapilot FMG50
26 Endress+Hauser
Measuring system arrangement
2
1
A0042063
1 Arrangement of multiple FMG50 units
2 Density profile measurement
Description
To obtain detailed information on the distribution of layers of different densities in a
vessel, a density profile is measured using a multi-detector solution. Several FMG50 units
are installed next to one another on the outside of the vessel wall for this purpose. The
measuring range is divided into zones and each compact transmitter measures the density
value in its respective zone. A density profile is derived from these values.
This results in a high-resolution measurement of the distribution of medium layers (e.g. in
separators)
For more information, see:
CP01205F
4.2.8 Installation conditions for concentration measurement
Conditions
• If possible, the 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 Endress+Hauser FHG51 clamping device or an equivalent clamping device should be
used to fasten the source container and the Gammapilot FMG50 to the measuring pipe.
The clamping device itself must be installed in such a way as to withstand the weight of
the source container and the Gammapilot FMG50 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 FMG50 depends on the
pipe diameter (or the radiated length) and the density measuring range. These two
parameters determine the measuring effect (relative change in the pulse rate). The longer
the radiated length, the greater the measuring effect. Therefore, it is advisable to use
diagonal irradiation or a measuring path for small pipe diameters.
To select the measuring system arrangement please contact the Endress+Hauser sales
organization or use the Applicator™configuration software.
2)
2) The Applicator™ is available from your Endress+Hauser sales organization.