Nozzle Design - Siemens SITRANS LR200 7ML5422 Operating Instructions Manual

Installing/mounting
4.2 Mounting
4.2.1.1

Nozzle design

● For nozzles 100 mm (4") in length or shorter use the 100 mm (4") shield.
● For nozzles 250 mm (10") in length or shorter use the 250 mm (10") shield.
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
Location on a manhole cover
● A manhole cover is typically a covered nozzle with a diameter 610 mm (24") or greater.
● For optimum signal conditions, locate the antenna off-center, typically 100 mm (4") from
the side.
22
Locking ring secured by three 2 mm Allen set-screws
Threaded connection
Shield
SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE