Siemens SITRANS Probe LU240 Continuous Ultrasonic Level Transmitter with HART

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Ultrasonic level transmitter with HART + 4-20 mA for level, volume, and volume flow measurements for liquids, slurries, and bulk solid materials up to 40 feet (12 meters). 10° beam angle. ETFE or PVDF transducer materials to meet the chemical conditions of your specific application. Good for process temperatures to 185°F (85°C).

Territory Restriction: Due to our territory agreement with Siemens, Lesman is the authorized Siemens sales representative in Illinois, Indiana, Wisconsin, Eastern Missouri, Michigan's Upper Peninsula, Paducah KY area, Oregon, Washington, Northern Idaho, Western Montana, Alaska, and Hawaii. If you are outside that area, you can find your local sales office or get technical assistance by calling 800-365-8766 or 972-522-4500, or sending an email to

Siemens' SITRANS Probe LU240 ultrasonic level transmitter with HART is designed to measure level in the water/wastewater industry, chemical storage vessels, filter beds, and small bulk hoppers. It works with liquids, slurries, and bulk materials up to 40 feet (12m) and provides level, volume, and volumetric flow measurements. With its IP68/NEMA 4X enclosure, it's suitable for both indoor and outdoor applications, and communicates by HART 7 protocol for easy configuration.

The SITRANS Probe LU240 is available with an ETFE or PVDF transducer to meet the chemical compatiblity requirements of your application, and includes an internal temperature sensor to compensate for fluctuating process temperatures. Order the LU240 with the optional transparent lid for visual access to the display without opening the meter's cover.

  • For liquids, slurries, and bulk materials in storage vessels and small tank hoppers
  • Siemens Process Intelligence signal processing and Auto False Echo Suppression for fixed obstruction avoidance
  • Your choice of measuring ranges: 10, 20, or 40 feet (3, 6, or 12 meters)
  • Internal temperature sensor compensates for fluctuating temperatures
  • 4-20 mA/HART output
  • Programming using four-button interface under the unit's cover or using SIMATIC PDM and a PC
  • IP66/IP68/Type 4X/Type 6 PBT plastic enclosure with integral ETFE or PVDF transducers for chemical compatibility
  • 2" NPT process connection, one 1/2" NPT electrical connection standard
  • Optional internal LCD display shows process value name, unit, values (level, space, distance, volume, and volume flow), diagnostics, and provides local access to all settable parameters
  • Optional transparent lid for viewing process details on the digital display without removing the lid
  • CE, CSA, FM, ATEX, IEC Ex approvals

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More Information
Point or Continuous Level Continuous
Level Media Liquid, Slurry, Dry Solid
Level Technology Ultrasonic
Measuring Range 7.87 Inches to 39.37 Feet (0.2 to 12 Meters)
Wetted Materials ETFE or PVDF copolymer

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