Location On A Nozzle, Or On A Manhole Cover; Mounting Instructions - Siemens Sitrans Probe LR Operating Instructions 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.
• If your nozzle is longer than 250 mm (10"), contact your local representative. You will
need to exchange the device for a different model with a longer shield length.
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 of 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
For details on other applications, see
Note:
page 98.

Mounting Instructions

Do not rotate the enclosure after programming and vessel calibration, otherwise
Note:
an error may occur, caused by a polarity shift of the transmit pulse.
1. Before inserting SITRANS Probe LR into its mounting connection, check to ensure
the threads are matching, to avoid damaging them.
2. Simply screw SITRANS Probe LR 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 three set-
screws that secure the locking collar.
4. Once the enclosure is in a suitable position, tighten the set-screws.
P P age 14 SITRANS Probe LR – INSTRUCTION MANUAL
locking collar secured by three 2 mm Allen set-screws
threaded connection
10 mm
(0.4")
Appendix F: Special Applications
100 mm (4")
on
7ML19985HR02