Siemens SITRANS LR, Quick Start Manual, Page: 7 / 184

A5E32106153 SITRANS Probe LR – QUICK START MANUAL Page EN-5
m
mmmm
Englis
h
Mounting instructions
• Before inserting SITRANS Probe LR into its mounting connection, check to ensure the
threads are matching to avoid damaging them.
• 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).
• To rotate the enclosure, use a 2 mm Allen key to loosen the three set-screws that secure
the locking collar. Once the enclosure is positioned as desired, tighten the set-screws.
Wiring
Power
1
WARNINGS:
DC terminals shall be supplied from an SELV
1
source in accordance with IEC-
1010-1 Annex H.
All field wiring must have insulation suitable for rated voltages.
1.
Safety Extra Low Voltage
minimum
100 mm (4")
minimum
10 mm (0.4")
To provide optimum signal conditions on a manhole cover, locate the antenna off-center
relative to the cover, typically 100 mm (4”) from the side of the manhole.
•
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.
Mounting on a nozzle Mounting on a manhole cover