Emerson Rosemount 5408 Reference Manual page 26

Mechanical installation
February 2020
Figure 3-5: Beam Angle and Beam Width
Table 3-3: Beam Angle
Antenna size
1½-in. (DN 40) cone
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: Beam Width, ft. (m)
Distance
(D)
16 (5)
33 (10)
49 (15)
66 (20)
82 (25)
98 (30)
131 (40)
26
1½-in. cone 2-in. cone/
process seal
6.2 (1.9) 5.2 (1.6)
12.8 (3.9) 10.4 (3.2)
19.0 (5.8) 15.6 (4.8)
25.6 (7.8) 20.8 (6.3)
31.8 (9.7) 26.0 (7.9)
38.4 (11.7) 31.2 (9.5)
51.2 (15.6) 41.6 (12.7)
Beam angle (α)
22°
18°
14°
10°
4.5°
Beam width (W)
3-in. cone/ 4-in. cone/
process seal process 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)
Reference Manual
00809-0100-4408
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