Flanged Horn Dimensions - Siemens Sitrans LR200 Instruction Manual

Flanged Horn dimensions

Notes:
• Signal amplitude increases with horn diameter, so use the largest practical size.
• 80 mm (3") and 100 mm (4") are not recommended in vessels due to the wide beam/
poor performance. They are to be used in stillpipe applications only.
Nominal Horn Size
100 mm (4")
150 mm (6")
200 mm (8")
a)
Height from bottom of horn to sensor reference point as shown: see
Flange with Horn Antenna and Waveguide extension
or Flat-Face Flange with Waveguide
ration
on page 156.
b)
– 3dB in the direction of the polarization axis (see
point
on page 18 for an illustration).
Page 154 SITRANS LR200 (HART) – INSTRUCTION MANUAL
Height to sensor
Horn O.D.
reference point
95.3 mm (3.75")
146.0 mm (5.75")
199.4 mm (7.85") 325.1 mm (12.79")
Beam Angle
a)
131.0 mm (5.16") 29 degrees
225.8 mm (8.89") 20 degrees
17 degrees
on page 153,
Sliding Waveguide Configu-
on page 155, or
Polarization reference
Measurement
b)
Range
20 m (65.6 ft)
Flat-Face
Raised Face
7ML19985JP02