Siemens SITRANS LR250 Liquid Level Transmitter


  • Easy setup with graphical HMI with Quick Start Wizard or remote access via EDD or DTM
  • Intrinsically safe infrared handheld programmer for local interface
  • Field proven with rugged encapsulated enclosure based on 10+ years of experience
  • Reliable readings with Process Intelligence advanced echo processing for reliable performance
  • Ready for digitalization with HART, PROFIBUS PA or FOUNDATION fieldbus for connectivity
  • The right antenna and process connection for the application with a wide range of antenna materials for all industries: Polypropylene, PTFE, PP, or 316L stainless steel

Siemens SITRANS LR250 Liquid Level Transmitter offers a wide selection of antennas and process connections, rendering this transmitter suitable for virtually any liquid-related application. These robust antennas are designed for longevity, providing versatility in measuring liquid levels for both inventory and process vessels.


Order No 7ML54315
Range 20 m (66 ft)
Process temperatures 80 °C (176 °F)
Wetted materials polypropylene, FKM
Process connection types & sizes universal flanges 3″/80mm, 4″/100mm, 6″/150mm
Approvals CSA, FM, ATEX, IECEX, INMETRO, NEPSI, Ex-proof, Intrinsically safe


Siemens SITRANS LR250 Flanged Encapsulated Antenna_DpstarGroup

Siemens SITRANS LR250 Horn Antenna_DpstarGroup

Siemens SITRANS LR250 Hygienic Encapsulated Antenna_DpstarGroup

Siemens SITRANS LR250 Polypropylene Lens Antenna_DpstarGroup