Siemens 7ML5431 - Page 199

Dimension drawings
12.9 PTFE Flanged encapsulated antenna (2"/DN50/50A sizes only)
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
199
Flanged encapsulated antenna (2"/DN50/50A) dimensions
Flange size
③ mm (inch)
⑦ mm (inch)
⑧ mm (inch)
⑩ mm (inch)
1)
2"/DN50/50A
263 (10.35)
223 (8.78)
274 (10.79)
11 (0.43)
1)
Height from tip of lens to sensor reference point as shown.
Flange size
Flange class
Flange O.D.
[mm (inch)]
Antenna
aperture size
[mm (inch)]
Beam angle
(°)
1)
Measurement
range
[m (ft)]
2"
150 LB
152 (5.98)
50 (1.97) 12.8 10 (32.8)
2)
DN50
PN10/16
165 (6.50)
50A
10K
155 (6.10)
1)
-3 dB in the direction of the polarization axis.
2)
20m if installed in stillpipe
See Raised-Face Flange per EN 1092-1, (Page 224)and Polarization reference point
(Page 32).