Installation Instructions

4/233
Siemens FI 01 · Update 11/2019
Level Measurement
Continuous level measurement
Radar level transmitters
SITRANS LR250 with PVDF antenna or Polypropylene lens antenna
4
SITRANS LR250 Polypropylene lens antenna with universal polymeric
flange, dimensions in mm (inch)
Bolt hole
radius
± 0.25
Nominal
pipe
size
OD
± 1
B.C.D.
max. for
slotted holes
(bmax.)
± 0.75
B.C.D.
min. for
slotted holes
(bmin.)
± 0.75
# of
slotted
holes
Universal polymeric flange
Bolt hole circle
min. Ø
Bolt hole circle
max. Ø
Bolt
hole
radius
Number of
slotted bolt
holes
½" NPT or M20 cable entry
Threaded cover
7.87 (20 0)
6.30 (160)
5.91 (150)
0.37 (9.5)
6.89 (175)
9.45 (140)
17.52 (191)
9.53 (242)
9.00 (229)
11.2 2 (28 5)
0.37 (9.5)
0.45 (11.5)
Process
connection tag
Polypropylene
lens antenna
90
(3.5)
167
(6.6)
162
(6.4)
154
(6.1)
50
(2.0)
289
(11.4)
4 (100)
6 (150)
3 (80)
8
8
8
© Siemens 2019