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Sentinel LCT4


Superior design meets serious workhouse in the Sentinel LCT4 Liquid Flow Meter. Fully enclosed in protective explosion-proof housings, our transducers have less of a buffer between them and the liquid flow—creating reduced transit time and better accuracy. Ultrasonic has comparable measurement to mechanical meters, but with no moving parts—saving you money on lower installation, maintenance and energy costs. Plus, the additional diagnostics give you a clearer picture of exactly what is happening inside the pipe.

Features and Benefits

Our patented 4-path chordal configuration is viscosity independent so there’s no need to prove or recalibrate when viscosity changes. The standardized flowcell design of the Sentinel LCT4 means you can get it delivered to you in the field in less time than ever before. Our software code improves speed while the integrated electronics make it possible to perform all your calculations from one centralized location.


  • Liquid custody transfer measurement
  • Allocation measurement
  • Pipeline leak detection
  • Crude oil and refined products
  • Any critical liquid process

Peace of Mind Performance

The Sentinel LCT4 is a new addition to the Panametrics line of ultrasonic flow meters. Designed specifically for high accuracy measurement of crude oil, other liquid refined hydrocarbon products, and other non-hydrocarbon liquids, it delivers extremely reliable and repeatable results and meets the strict performance requirements of OIML R117-1 and API MPMS Chapter 5.8. The LCT4 refines the high-reliability characteristics of its predecessor, the Sentinel LCT, into an aesthetically designed, compact meter body with integral cables, no extended buffers and no junction boxes. It continues to retain all of the advantages of ultrasonic flow measurement, including:

  • No drifting or required periodic calibration
  • No pressure drop
  • No restriction in the pipe
  • No moving parts and no filters or strainers

Learn more about ultrasonic liquid flow meters available from BBP.

Additional information


Chemical, Engineering, Food & Beverage, Oil & Gas, Pharmaceutical, Power Generation, Pulp & Paper, Refining, Water & Wastewater