Emerson Edition 4 Manuel D’Utilisation
Rosemount Tank Radar REX
Chapter 10 Mechanical Installation
Chapter 10 Mechanical Installation
10-2
Installation Manual
308014EN, Edition 4
May 2013
10.1.2 Free Space Requirements
There are two flanges available for the Horn Antenna Gauge. One
inclines the gauge 4° and the other is horizontal. See installation drawing
for flange dimensions.
inclines the gauge 4° and the other is horizontal. See installation drawing
for flange dimensions.
The radar beam is over 30° wide. If the wall intrudes into the 30° radar
beam when the transmitter is installed with a vertical antenna axis, the
radar beam has to be directed away from the wall by using the 4° flange.
This inclination is necessary to ensure maximum accuracy.
beam when the transmitter is installed with a vertical antenna axis, the
radar beam has to be directed away from the wall by using the 4° flange.
This inclination is necessary to ensure maximum accuracy.
The horizontal flange can be used when the wall does not intrude into the
30° radar beam.
30° radar beam.
For special cases, where maximum accuracy is not required, the
horizontal flange can be used even when the wall intrudes into the radar
beam. In doubtful cases, please contact please contact Emerson
Process Management / Rosemount Tank Gauging or one of its
representatives for advice.
horizontal flange can be used even when the wall intrudes into the radar
beam. In doubtful cases, please contact please contact Emerson
Process Management / Rosemount Tank Gauging or one of its
representatives for advice.
Figure 10-2. Free space requirements for RTG with Horn
antenna.
4
1
3920_FreeSpace_small.eps
Tank wall
Antenna axis
30° radar beam
Vertical plumb line
Vertical plumb line
Vertical plumb line
Vertical plumb line
Antenna axis
Tank wall
30° radar beam