Rosemount TankRadar Rex
Chapter 1 Checks and Adjustments
1-10
Commissioning Manual
308011En, Ed.2/Rev.B
June 2008
1.10 RTG 3930
1.10.1
Tank Information
•
Check if there is water at the bottom of the tank.
1.10.2
Visual check
•
Free space below the RTG
. Normally girders and pipes are not
allowed in the radar beam. If there are disturbing objects below the
antenna, the effect on the current measurement must be carefully
evaluated.
•
Check that waveguide, closing, feeder and parabola are mounted
correctly and take appropriate actions in order to replace broken
parts.
1.10.3
Tank measurements
•
Diameter of the manhole
and the
socket height
. If a 20" diame-
ter socket is used, the height of the socket must not exceed 0.6 m.
If the manhole is wider, the height of the socket may be corre-
spondingly higher as long as the requirement of a free passage
within 5° is fulfilled.
•
Note the distance X between the tankwall and the center of the
RTG. It will be used for calculations of the clearance angle below
the antenna.
Figure 1-9
RTG 3930.
