Siemens 7ML5431 Operating Instructions Manual page 193

Threaded horn with extension dimensions
Antenna Antenna
Type O.D., mm
(inch)
1.5" 39.8 (1.57)
2" 47.8 (1.88)
3" 74.8 (2.94)
4" 94.8 (3.73)
Height from bottom of horn to sensor reference point as shown: see dimension drawing.
a)
-3dB in the direction of the polarization axis. For an illustration, see Polarization reference
b)
point (Page 32).
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
Height to sensor reference point, mm (inch)
1-1/2" threaded con- 2" threaded con-
nection nection
235 (9.25) N/A
N/A 266 (10.47)
N/A 299 (11.77)
N/A 354 (13.94)
12.6 Stainless steel threaded horn antenna with extension
a)
3" threaded
connection
N/A
280 (11.02)
313 (12.32)
368 (14.49)
Dimension drawings
Beam Angle Measurement
(°) range, m (ft)
b)
19 10 (32.8)
15 20 (65.6)
10 20 (65.6)
8 20 (65.6)
193