Mounting
Micropilot S FMR533 4 to 20 mA HART
12
Hauser
Beam angle
The beam angle is defined as the angle
α
where the energy density of the radar waves reaches half
the value of the maximum energy density (3dB-width). Microwaves are also emitted outside the
signal beam and can be reflected off interfering installations.
Beamwidth diameter
W
as function of antenna type (beam angle
α
) and measuring distance
D
:
"
Caution!
Make sure that
only one
tank wall (
not two
tank walls) is directly hit by the radar beam!
parabolic
L00-FMR53xxx-14-00-00-xx-003
Beam angle
α
7°
Gauge Reference Height
(GRH)
recommended distance from
the tank wall (W/2)
3 m (10 ft)
0.2 m
6 m (20 ft)
0.4 m
9 m (30 ft)
0.6 m
12 m (40 ft)
0.7 m
15 m (49 ft)
0.9 m
20 m (65 ft)
1.2 m
25 m (82 ft)
1.5 m
38 m (114 ft)
2.3 m
40 m (120 ft)
2.4 m
D
W/2
