Mounting Instructions - Siemens SITRANS LR200 Guia De Inicio Rapido

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Nozzle location (continued)
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 antenna.
• There is a signal transmitted outside the
beam angle, therefore false targets may
be detected.
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.

Mounting instructions

WARNING: For pressure applications, use PTFE tape or other appropriate thread
sealing compound, and tighten the process connection beyond hand-tight (max.
torque 40 N·m (30 ft.lbs).
Notes:
• There is no limit to the number of times the device can be rotated without damage.
• Orient the front or back of the device towards the closest vessel wall.
• Do not rotate the enclosure after programming and device configuration (a polarity shift
of the transmit pulse may cause an error).
Threaded Version
1) Before inserting the device into its mounting connection,
check to ensure the threads are matching to avoid dam-
aging them.
2) Screw the device into the process connection, and hand
tighten.
3) To rotate the enclosure, first loosen the three set-screws
securing the locking ring. After positioning the enclosure,
retighten the screws.
Flanged Version
WARNING: The user is responsible for the selection of bolting and gasket materials
which will fall within the limits of the flange and its intended use, and which are
suitable for the service conditions.
Page EN-6
SITRANS LR200 (PROFIBUS PA) – QUICK START MANUAL
min. 300 mm (1ft)
per 3 m (10') of vessel
height
emission
cone
beam
angle
o
28
locking ring
secured by three
2 mm Allen set-
screws
threaded
connection
A5E32153438

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