Nozzle Location - Siemens SITRANS LR200 7ML5422 Operating Instructions Manual

4.2.1.2

Nozzle location

Beam angle
● Beam angle is the width of the cone where the energy density is half of the peak energy
density.
● The peak energy density is directly in front of and in line with the rod antenna.
● There is a signal transmitted outside the beam angle, therefore false targets may be
detected.
①
②
③
Emission cone
● Keep emission cone free of interference from ladders, pipes, I-beams or filling streams.
● Locate the antenna away from the side wall, to avoid interference from indirect echoes.
● Make allowance for the emission cone spreading: allow a minimum of 300 mm (1 ft) for
every 3 m (10 ft) of vessel height.
SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE
Min. 300 mm (1 ft) per 3 m (10') of vessel height
Emission cone
Beam angle 28°
Installing/mounting
4.2 Mounting
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