Emerson Rosemount 5900S Reference Manual page 33

Reference Manual
00809-0100-5900
Figure 3-3: Maximum Inclination with Parabolic Antenna
A. Maximum inclination 1.5°
Flange requirements
The Rosemount 5900S with Parabolic Antenna is mounted on the tank nozzle by using the
Flange Ball. It is designed for easy adjustment of gauge inclination within the specified
limits.
There are two versions of the Flange Ball. One that is clamped to the flange by using a nut,
and another one which is welded to the flange.
The Flange Ball has to be mounted on the flange prior to mounting the gauge on the tank
nozzle.
The flange needs to fulfill certain requirements in order to ensure that the radar beam is
not disturbed by the tank wall. This allows the radar signal to be reflected on the product
surface and transmitted back to the level gauge at a maximum signal strength.
The tank flange has to meet the following inclination requirements (see
order to allow proper adjustment of the antenna:
• maximum 4.5° away from the tank wall
• maximum of 2° towards the tank wall
Rosemount 5900S Radar Level Gauge
Installation
September 2019
Figure 3-4) in
33