Emerson Rosemount 5408 Reference Manual page 28

Mechanical Installation
Figure 3-5:
Table 3-3:
Antenna size
2-in. (DN50) cone/process seal
3-in. (DN80) cone/process seal
4-in. (DN100) cone/process seal
8-in. (DN200) parabolic
Table 3-4:
Distance (D)
16 (5)
33 (10)
49 (15)
66 (20)
82 (25)
98 (30)
131 (40)
18
Beam Angle and Beam Width
Beam Angle
Beam Width, ft. (m)
Beam width (W)
2-in. cone/ process
seal
5.2 (1.6)
10.4 (3.2)
15.6 (4.8)
20.8 (6.3)
26.0 (7.9)
31.2 (9.5)
41.6 (12.7)
Beam angle (α)
18°
14°
10°
4.5°
3-in. cone/ process 4-in. cone/ process
seal seal
4.0 (1.2) 2.9 (0.9)
8.1 (2.5) 5.7 (1.8)
12.1 (3.7) 8.6 (2.6)
16.1 (4.9) 11.5 (3.5)
20.1 (6.1) 14.3 (4.4)
24.2 (7.4) 17.2 (5.3)
32.2 (9.8) 23.0 (7.0)
Parabolic
1.3 (0.4)
2.6 (0.8)
3.9 (1.2)
5.2 (1.6)
6.4 (2.0)
7.7 (2.4)
10.3 (3.1)
Reference Manual