Installation Gammapilot M FMG60 with FOUNDATION Fieldbus
18 Endress+Hauser
3.2.4 Installation conditions for density and concentration
measurement
Conditions
• If possible, density and concentration should be measured at vertical pipes with a feed direction
from bottom to top.
• If only horizontal pipes are accessible, the path of the ray should also be arranged horizontally to
reduce the influence of air bubbles and sediments.
• The Endress+Hauser clamping device (see chapter "Accessories") or an equivalent clamping
device should be used for fastening the radiation source container and the Gammapilot M to the
measuring tube.
The clamping device itself must be installed in a way such that it can withstand the weight of the
source container
3)
and the Gammapilot M
4)
under all operating conditions.
• The sample point may not be further than 20 m from the measuring point.
• The distance of the density measurement to pipe bends is ≥ 3 x pipe diameter and ≥ 10 x pipe
diameter for pumps.
Configuration of the measuring system
The configuration of the source container and the Gammapilot M depends on the pipe diameter (or
the length of the irradiated measuring path respectively) and the measuring range. These two
parameters determine the measuring effect (relative change of the pulse rate). The measuring effect
increases with the length of the radiation path through the medium. Therefore, diagonal irradiation
or the use of a measurement section is necessary for small pipe diameters.
For the configuration of the measuring system please contact your Endress+Hauser sales
organization or use the "Applicator"
ΤΜ
5)
configuration software.
L00-FMG60xxx-17-00-00-xx-003
1: Vertical beam (90°); 2: Diagonal beam (30°); 3: Measurement section;
4: Sample point
!
Note!
To increase the accuracy for density measurements, the use of a collimator is recommended. The
collimator screens the detector against environmental radiation.
!
Note!
• When planning, the total weight of the measuring system must be taken into consideration.
• The Gammapilot M should be given additional support to secure it against falling or prevent
damage to the connecting cable.
• A clamping device and a measurement section are available as accessories (see chapter
"Accessories").
3) The weights of the source containers are specified in Technical Information TI435F (FQG61, FQG62) and TI346F (QG2000).
4) The weights of the various versions of the Gammapilot M are summarized in the section "Dimensions/Weight".
5) The "Applicator"
ΤΜ
is available from your E+H sales organization.
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