Dimensions; Threaded Horn Antenna With Extension - Siemens LR250 Instruction Manual

Dimensions

Threaded Horn Antenna with extension

Notes:
• Process temperature and pressure capabilities are dependent upon information on
the process connection tag. Reference drawing listed on the Tag is available on the
product page of our website at www.siemens.com/LR250, under Support/
Installation drawings/Level Measurement/Continuous - Radar/LR250. Additional
information on process connections is available on the Installation Drawings page
under Process Connection Diagrams.
• Signal amplitude increases with horn diameter, so use the largest practical size.
• Optional extensions can be installed below the threads.
50 mm
(2.0")
154 mm
(6.1")
196 mm
(7.7")
28 mm (1.1")*
horn
O.D.
* 28 mm (1.1") for 1.5" & 2", 42 mm (1.65") for 3"
Threaded Horn dimensions
See table under
reference point.
Page 14 SITRANS LR250 (HART) – INSTRUCTION MANUAL
1/2" NPT cable entry
(or alternatively, M20 cable gland)
threaded cover
enclosure/
electronics
retaining
collar
optional
100 mm (4.0 ")
horn extension
process
connection
tag
horn
on page 15 for horn height to sensor
167 mm
(6.6")
90 mm
(3.5")
159 mm
(6.26")
sensor
ref.
point
7ML19985JE06