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Dimension drawings
12.5 Stainless steel threaded horn antenna
SITRANS LR250 with FOUNDATION FIELDBUS
192
Operating Instructions, 09/2021, A5E32221411-AH
①
½" NPT cable entry, or M20 cable gland
⑦
enclosure/electronics
②
threaded cover
⑧
retaining collar
③
2" horn
⑨
process connection tag
④
3" horn
⑩
horn
⑤
4" horn
⑪
sensor reference point
⑥
horn O.D.
Dimensions in mm (inch)
Threaded horn dimensions
Antenna
Type
Antenna
O.D., mm
(inch)
Height to sensor reference point, mm (inch)
a)
Beam An-
gle
(°)
b)
Measurement
range, m (ft)
1-1/2" threaded con-
nection
2" threaded
connection
3" threaded
connection
1.5"
39.8 (1.57) 135 (5.3)
N/A
N/A
19
10 (32.8)
2"
47.8 (1.88) N/A
166 (6.55)
180 (7.09)
15
20 (65.6)
3"
74.8 (2.94) N/A
199 (7.85)
213 (8.39)
10
20 (65.6)
4"
94.8 (3.73) N/A
254 (10)
268 (10.55)
8
20 (65.6)