Sensor Connections - Siemens SITRANS L Compact Operating Instructions

Connecting
5.2 Connecting SITRANS LT500
5.2.1

Sensor connections

①
Hazardous voltage
Hazardous voltage present on transducer terminals during operation.
Note
Important wiring notes
• Do not connect coaxial cable directly to the device due to high voltage transmitted on
shield of coaxial cable; use coaxial cable converter box instead (see wiring below).
• Do not connect the device shield and white transducer wires together; wire to separate
terminals.
• Disregard older transducer manuals that recommend these practices.
Coaxial cable converter wiring
Note
Improper installation in hazardous areas
Coaxial cable converter is available with approvals for ordinary location applications.
• Do not install in hazardous areas.
32
To sensor (measurement point 1)
Note that for EchoMax transducer connection:
positive = black wire
negative = white wire
WARNING
SITRANS LT500 with ultrasonic transducer inputs
Compact Operating Instructions, 02/2024, A5E52021877-AA