Nozzle Design - Siemens SITRANS L Series Compact Operating Instructions

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.
4.4

Nozzle design

The end of the shield section or end of the horn should protrude a minimum of 10 mm (0.4")
to avoid false echoes being reflected from the nozzle.
①
②
③
SITRANS Probe LR with mA/HART
Compact Operating Instructions, 05/2019, A5E46248119-AC
Min. 300 mm (1 ft) per 3 m (10') of vessel height
Emission cone
Beam angle 28°
Locking ring secured by three 2 mm Allen set-screws
Threaded connection
Shield
Installing/mounting
4.4 Nozzle design
17