Application Considerations When Specifying Displacer Level Transmitter Technology for Liquid Measurement and Control

Magnetrol displacer level transmitterDisplacer level transmitter technology plays a key role in the safe and effective measurement of liquids across all process industries. To ensure that you implement an optimal solution for your facility, it’s important to learn about the different applications where a displacer transmitter can be used – and the advantages and limitations of using this technology for level measurement.

In this post, we’ll discuss industrial level applications for displacer transmitter technology. To learn more about displacer transmitters and other level and flow control topics, consider subscribing to our blog.

Industries
A linear variable differential transformer (LVDT) transmitter with range spring technology, which is the operating principle used by the Magnetrol® E3 Modulevel® displacer transmitter, provides accurate and reliable liquid level measurement and control for a variety of process industries today, including the chemical, petroleum refining, power generation, pulp and paper, nuclear power, crude oil processing and natural gas processing industries.

Applications
Displacer transmitters are an ideal solution for an array of industrial media, including liquids or slurries, clean or dirty, and light hydrocarbons to heavy acids with a specific gravity (SG) of 0.23 to 2.20. This technology also works well in a variety of vessels, including process and storage, bridles, bypass chambers, interfaces, sumps and pits up to unit pressure and temperature ratings. In addition, displacer transmitters can handle most liquid conditions, including varying dielectric, vapors, turbulence, foam, buildup, bubbling or boiling and high fill/empty rates.

Benefits and Limitations
The advantages of displacer transmitter technology include:

  • High pressure/temperature capabilities
  • Stable signal in turbulent applications
  • No flexure of pressure boundary parts
  • HART® or FOUNDATION Fieldbus™ compatible

Although displacer transmitters offer many advantages, it is important to note that shifting SG can affect this technology.

Follow Our Displacer Level Transmitter Technology Discussion
In next week’s post, we’ll demonstrate how LVDT transmitters with range spring technology may be a more reliable choice than torque tubes. To learn more about using displacer transmitters for level control, you can also download the MAGNETROL Linear Variable Differential Transformer Technology Guide.



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