7ML19985JF02 SITRANS LR250 (PROFIBUS PA) – INSTRUCTION MANUAL Page 15
mmmmm
Installation
Mounting location
Nozzle design
• The end of the horn must protrude
a minimum of 10 mm (0.4”) to avoid
false echoes being reflected from
the nozzle.
• An antenna extension:
(100 mm / 3.93") is available.
Nozzle location
• Keep emission cone free of
interference from ladders,
pipes, I-beams or filling
streams.
• Avoid central locations on
tall, narrow vessels.
Notes:
• Correct location is key to a successful application.
• Avoid reflective interference from vessel walls and obstructions by following the
guidelines below
Notes:
• Beam angle depends on horn size.
• For details on avoiding false
echoes, see
Auto False Echo
Suppression (2.2.4.2.)
on page 114.
Min. clearance:
10 mm (0.4")
beam angle:
1.5" horn = 19°
2" horn = 15°
3" horn = 10°
4" horn = 8°
19°
emission
cone
undesirable
preferred
To Next Page
Loading...
