Siemens Sitrans Probe LU Guide Rapide page 7

Mounting Instructions
Ideally, mount SITRANS Probe LU so that the face of the transducer is at least
Note:
300 mm (1 ft) above the highest anticipated level.
SITRANS Probe LU is available in three thread types: 2" NPT, 2" BSP , or PF2/G.
1. Before inserting SITRANS Probe LU into its mounting connection, ensure that the threads
are of the same type to avoid damaging them.
2. Simply screw SITRANS Probe LU into the process connection, and hand tighten.
Wiring
1
Power
WARNINGS:
DC terminals shall be supplied from an SELV
1010-1 Annex H.
All field wiring must have insulation suitable for rated voltages.
Connecting SITRANS Probe LU
Notes:
• For detailed information on Intrinsically
Safe set-ups, please see the full manual.
• Use shielded, twisted pair cable (wire
gauge AWG 22 to AWG 14 /0.34 mm
2
2.08 mm ).
• Separate cables and conduits may be
required to conform to standard
instrumentation wiring practices, or
electrical codes.
• The non-metallic enclosure does not
provide a continuous ground path
between conduit connections: use
grounding-type bushings and jumpers.
1.
Safety Extra Low Voltage
7ML19985QR81
2
to
SITRANS Probe LU (HART) – QUICK START MANUAL
1
source in accordance with IEC-
cover screws
threaded
connection
hinged lid
water-
tight gland
Page EN-5