Micropilot M FMR 231 with HART/4...20 mA
Mounting
E Hauser
15
Beam angle
The beam angle is defined as the angle a 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. Beam
diameter
W
as function of antenna type (beam angle
α
) and measuring distance
D
:
Antenna
FMR 231
Rod
L00-FMR2xxxx-14-00-06-de-027
Beam angle
α
30°
Measuring dis-
tance (D)
Beam diameter (W)
Rod
3 m / 10 ft
1,61 m / 5.36 ft
6 m / 20 ft
3,22 m / 10.72 ft
9 m / 30 ft
4,83 m / 16.08 ft
12 m / 40 ft
6,43 m / 21.44 ft
15 m / 49 ft
8,04 m / 26.26 ft
20 m / 65 ft
10,72 m / 34.83.ft
α
D
W