Siemens SITRANS LR250 Operating Instructions Manual page 199

Flanged encapsulated antenna (2"/DN50/50A) dimensions
Flange size
2"/DN50/50A
Height from tip of lens to sensor reference point as shown.
1)
Flange size
2"
DN50
50A
-3 dB in the direction of the polarization axis.
1)
20m if installed in stillpipe
2)
See Raised-Face Flange per EN 1092-1, (Page 221)and Polarization reference point (Page 31).
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC
12.5 Flanged encapsulated antenna (2"/DN50/50A sizes only)
③ ⑦
mm (inch)
263 (10.35) 223 (8.78)
Flange class Flange O.D.
[mm (inch)]
150 LB 152 (5.98)
PN10/16 165 (6.50)
10K 155 (6.10)
⑧
mm (inch) mm (inch)
274 (10.79)
Antenna Beam angle
aperture size (°)
[mm (inch)]
50 (1.97) 12.8
Dimension drawings
⑩
mm (inch)
1)
11 (0.43)
Measurement
range
1)
[m (ft)]
10 (32.8)
2)
197