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10-9
Rosemount Tank Radar REX
Chapter 10 Mechanical Installation
Installation Manual
308014EN, Edition 4
May 2013
10.2.2 Free Space Requirements
The radar beam of the Parabolic Antenna Gauge is 10° wide. Obstacles 
(construction bars, pipes larger than Ø 2", etc.) within the radar beam are 
generally not accepted, as these can result in disturbing echoes. 
However, in most cases, a smooth tank wall or heating coils will not have 
any significant influence on the radar beam. For evaluation contact 
Emerson Process Management / Rosemount Tank Gauging.
Figure 10-8. Free space requirements.
3930_Freespace_requirements.eps
Free passage
Vertical plumb line
Antenna axis