Horn Dimensions - Siemens sitrans LR200 Instruction Manual

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
b)
– 3dB in the direction of the polarization axis (see
on page 14 for an illustration).
Page 146 SITRANS LR200 (PROFIBUS PA) – INSTRUCTION MANUAL
Horn O.D.
95.3 mm (3.75")
146.0 mm (5.75")
199.4 mm (7.85")
a)
Horn Height Beam Angle
131.0 mm (5.16")
225.8 mm (8.89")
325.1 mm (12.79")
Polarization reference point
b)
29 degrees
20 degrees
17 degrees
7ML19985JR01