Location On A Nozzle, Or On A Manhole Cover; Mounting Instructions - Siemens SITRANS LR200 Instruction Manual

Location on a nozzle, or on a manhole cover

Notes:
• Use the 100 mm (4") shield on nozzles that are 100 mm (4") in length, or shorter.
• Use the 250 mm (10") shield on nozzles that are 250 mm (10") in length, or shorter.
On a nozzle, the end of the shield section should protrude a minimum of 10 mm (0.4") to
avoid interference.
A manhole cover is typically a covered nozzle with a diameter 610 mm (24") or greater. To
provide optimum signal conditions on a manhole cover, locate the antenna off-center,
typically 100 mm (4") from the side.
shield
Note:
See also

Mounting Instructions

1. Before inserting SITRANS LR 200 into its mounting connection, check to ensure the
threads are matching, to avoid damaging them.
2. Simply screw the LR 200 into the process connection, and hand tighten. For pressure
applications, it will be necessary to use PTFE tape (or other appropriate thread
sealing compound) and tighten the process connection beyond hand tight.
The maximum torque is 40 N-m (30 ft.lbs).
3. If you want to rotate the enclosure, use a 2 mm Allen key to loosen the set-screws
that secure the locking ring.
4. Once the enclosure is in a suitable position, tighten the set-screws.
Note:
Do not rotate the enclosure after programming and vessel calibration, otherwise
an error may occur, caused by a polarity shift of the transmit pulse.
Page 12 SITRANS LR 200 (PROFIBUS PA) – INSTRUCTION MANUAL
locking ring secured by three 2 mm Allen set-screws
threaded connection
10 mm
(0.4")
Appendix E: Special Applications
100 mm (4")
on page 59.
7ML19985HP01