Emerson Rosemount 5900 Reference Manual page 33

Preliminary
Reference Manual
300520EN, Rev AA
November 2009
Figure 3-7. Free space
requirements for the Rosemount
5900 with Parabolic antenna
Section 3. Installation
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 may 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.
The distance from the tank wall to the antenna axis should be at least 0.8 m.
Recommended service space 400 mm
5°
Antenna axis
For evaluation contact Emerson Process Management / Rosemount Tank
Gauging.
Rosemount 5900 Series
Free passage
5°
Vertical plumb line
1.5 °
Min. 0.8 m
3-9