Ponton Industries


Process Instrumentation

Ultrasonic Level Transmitter

SITRANS Probe LU240 ultrasonic level transmitter is a cost-effective, compact, intelligent level solution for liquid chemical inventory, monitoring small process vessels, and level monitoring measurement in the environmental industry.

SITRANS Probe LU240 Catalog 


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  • HART 7 communications
  • Maintenance-free active face technology keeps the sensor clean
  • IP68 fully potted option with its fully encapsulated PVDF sensor is resistant to corrosion, chemicals and extreme shock
  • State-of-the-art Process Intelligence echo processing
  • Battery and solar-powered friendly, with low start-up current and 10.5-volt operation
  • Reduced blanking distance
  • 4-button user interface  or remote config

Supplementary Components are designed to work with most types of instrumentation to provide enhanced functionality such as remote displays and remote monitoring solutions. Please find more information here.



Don’t forget level measurement switches for back-up, overfill, low level and dry run protection. Click here for more information


Range0,3 ... 15 m (1 ... 50 ft)
Process Temperature-40 ... +85 °C (-40 ... +185 °F)

4 … 20 mA/HART

Wetted parts ETFE or PVDF transducers for chemical compatibility
Accuracy 0.15 % of range or 6 mm (0.25 inch)
Communications or Outputs - HART 7

- EDD for SIMATIC PDM for remote configuration and diagnostics 

- FDT such as PACTware or Fieldcare via SITRANS DTM

Key Applications water/wastewater chemical storage vessels, small bulk hoppers, filter beds, liquid storage vessels