Installation Instructions - Siemens SITRANS LR200 Manual De Instrucciones

Nozzle location
WARNING: For vessels with conical or parabolic tops, avoid mounting the
instrument at the centre. (The concavity of the top can focus echoes into the centre,
giving false readings.)
Note: Under certain circumstances, it
may be acceptable to mount the device
at the centre of a flat-topped tank.
Please discuss this with your local
Siemens representative.
• 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, to avoid interference with
vessel walls or obstructions.

Installation instructions

Notes:
• There is no limit to the number of times the device can be rotated.
• 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 damaging them.
2) Screw the device into the process connection, and hand
tighten. 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).
3) To rotate the enclosure, first loosen the three set-
screws securing the locking ring. After positioning the
enclosure, retighten the screws.
Page EN-6 SITRANS LR200 (PROFIBUS PA) – QUICK START MANUAL
Coni
Fl at
Flat
Conical
preferred
min. 300 mm (1ft)
per 3 m (10') of vessel
height
emission
cone
beam
angle
o
20
Parabolic
undesirable
locking ring
secured by three
2 mm Allen set-
screws
threaded
connection
7ML19985XD81