Installation Instructions - Siemens Sitrans LR250 Operating Instructions Manual

Installation Instructions

WARNING: For pressure applications, it will be necessary to use
PTFE tape or other appropriate thread sealing compound, and to
tighten the process connection beyond hand-tight. The maximum
recommended torque is 40 N-m (30 ft.lbs.)
Notes:
• There is no limit to the number of times a device can be rotated without damage.
• When mounting, orient the front or back of the device towards the closest wall.
• Do not rotate the enclosure after programming and vessel calibration, otherwise
an error may occur, caused by a polarity shift of the transmit pulse.
Threaded Versions
1. Before inserting the device into its mounting connection, check to ensure the
threads are matching, to avoid damaging them.
2. Simply screw the device into the process connection, and hand tighten, or use a
wrench.
For pressure applications see Warning note above.
Flanged Versions
Flanged Horn
See
Faced Flange
on page 17 for dimensions.
7ML19985JF04 SITRANS LR250 (PROFIBUS PA) – OPERATING INSTRUCTIONS
Raised Face Flange per EN 1092-1
on page 14,
Flat
on page 15, and
Page 23