Mounting Considerations; Mounting Location - Emerson Rosemount 5400 Series Reference Manual

Section 3: Mechanical Installation
November 2014
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):
„
„
„
„
Note
Proper mounting position is important to consider.
Figure 3-1. Proper Mounting Position
(D)
„
22
Filling inlets creating turbulence (B), and stationary metallic objects with horizontal
surfaces (C) should be kept outside the signal beam – see
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
(A)
The antenna is normally aligned vertically
1 / of the diameter from the tank wall
4
(E) (B) (F)
Reference Manual
00809-0100-4026, Rev HA
page 33 for beamwidth
(C)
Mechanical Installation