Emerson Rosemount 5600 Series Reference Manual page 20

Mechanical Installation
March 2020
Figure 2-1. Nozzle Requirements, See Table 2-1
Hold Off
Distance
Table 2-1. Nozzle Requirements in Inches (Millimeters)
Process seal 4 in.
Process seal 6 in.
Extended cone 3 in.
Extended cone 4 in.
Extended cone 6 in.
Flushing cone 4 in.
Flushing cone 6 in.
Flushing cone 8 in.
Note
For parabolic antennas mounted in solid applications, minimize the L Distance to allow the parabolic
antenna to reach into the tank.
Figure 2-2. Antenna Tip Outside Nozzle to Get the Best Measurement Performance
Parabolic antenna
20
L
maximum
Ø
min
Antenna L
recommended
Cone 3 in. 3.7 (95) or less
Cone 4 in. 5.9 (150) or less
Cone 6 in. 10.2 (260) or less
Cone 8 in. 14.6 (370) or less
Parabolic 6.3 (160) or less
11.8 (300) or less
11.8 (300) or less
19.5 (495) or less
19.5 (495) or less
19.5 (495) or less
5.9 (150) or less
10.2 (260) or less
14.6 (370) or less
Diam L
min
2.9 (75)
3.8 (98) 11.8 (300)
5.7 (146) 16.1 (410)
7.6 (194) 20.6 (525)
19.7 (500) 23.6 (600)
3.9 (100) 11.8 (300)
5.9 (150) 11.8 (300)
3.0 (75) 19.5 (495)
3.9 (98) 19.5 (495)
5.8 (146) 19.5 (495)
3.9 (98) 11.8 (300)
5.8 (146) 16.1 (410)
7.6 (194) 20.7 (525)
Cone antenna
Reference Manual
00809-0100-4024, Rev CA
Hold off distance
maximum
9.6 (245) 4.7 (120)
6.7 (170)
11.0 (280)
15.8 (400)
7.9 (200)
7.9 (200)
7.9 (200)
20.5 (520)
20.5 (520)
20.5 (520)
6.7 (170)
11.0 (280)
15.8 (400)
Mechanical Installation