Siemens sitrans PROBE LU - Safety Notes; Safety Marking Symbols

A5E32081626 SITRANS Probe LU (PROFIBUS PA) – QUICK START MANUAL Page EN-5
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English
Precautions
• Avoid proximity to high voltage or current wiring, high voltage or current contacts, and to
variable frequency motor speed controllers.
• Avoid interference to the sound path from obstructions or from the fill path.
s.
Mounting instructions
SITRANS Probe LU is available in three thread types: 2" NPT, 2" BSP, or PF2/G (BS EN ISO 228-1).
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
Power
1
Note: Ideally, mount SITRANS Probe LU so that the face of the transducer is at least
300 mm (1 ft) above the highest anticipated level.
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
seam
ladder
rung
pipe
Fill
The sound path should be:
• perpendicular to the
monitored surface
• clear of rough walls,
seams, rungs, or
other obstructions
• clear of the fill path
10°