Emerson Rosemount 5900S Series, Справочное руководство

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The Rosemount 5900S should be installed so that the distance between flange and
product surface exceeds 800 mm (31 in.). Highest accuracy is obtained for product levels
below this point.
Nozzles with larger diameter may be higher than 600 mm (24 in.) as long as the
requirement of 5° free passage is fulfilled.
Figure 3-6: Nozzle Requirements for the Rosemount 5900S with Parabolic Antenna
C
E
B
F F
A
D D
A. Minimum 800 mm (31 in.) for highest accuracy. Minimum 500 mm (20 in.) with
reduced accuracy.
B. Recommended height: 400 mm (16 in.). Maximum height: 600 mm (24 in.).
C. Minimum nozzle diameter: 500 mm (20 inch.)
D. Vertical plumb line
E. Ø 440 mm (17.3 in.)
F. 5° minimum
Free space requirements
The radar beam of the Rosemount 5900S with Parabolic Antenna 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 small objects will not have any significant influence on the radar beam.
Reference Manual Installation
00809-0100-5900 September 2019
Rosemount 5900S Radar Level Gauge 35