22
Reference Manual
00809-0100-4026, Rev HA
Section 3: Mechanical Installation
November 2014
Mechanical Installation
3.3 Mounting considerations
Before installing a Rosemount 5400 Series transmitter, consider specific mounting
requirements, vessel, and process characteristics.
3.3.1 Mounting location
For optimal performance, the transmitter should be installed in locations with a clear and
unobstructed view of the level surface (A):
Filling inlets creating turbulence (B), and stationary metallic objects with horizontal
surfaces (C) should be kept outside the signal beam – see page 33 for beamwidth
information
Agitators with large horizontal blades may reduce the performance of the transmitter,
so install the transmitter in a location where this effect is minimized. Vertical or slanted
blades are often invisible to radar, but create turbulence (D)
Do not install the transmitter in the center of the tank (E)
Because of circular polarization, there is no clearance distance requirement from the
tank wall if it is flat and free of obstructions such as heating coils and ladders (F).
Usually, the optimal location is
1
/4 of the diameter from the tank wall
Note
Proper mounting position is important to consider.
Figure 3-1. Proper Mounting Position
The antenna is normally aligned vertically
(D) (A) (E) (B) (F) (C)
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