Article | March 13, 2017

Ultrasonic Vs. Radar Level Technology In The Water Industry

Source: Siemens Process Instrumentation
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By Herman Coello, Product Marketing Manager

Ultrasonic Vs. Radar Level Technology In The Water Industry

In recent years, the debate about which technology is best suited for water and wastewater level measurement and monitoring is heating up. There are those who argue that ultrasonic level technology has been uncontested as the standard for level and open-channel measurement applications in the water industry.

The counter-argument is that radar technology is more effective because it is more robust and accurate than ultrasonic technology. This is because electromagnetic waves are not affected by temperature changes, and radar technology is virtually unaffected by volatiles or foam. Moreover, radar transmitters can handle higher temperatures than ultrasonic level instruments. In recent years, radar level transmitters have become easier to setup, and higher accuracies are now being achieved with newer designs.

All of this makes radar technology very attractive to apply across all industries, but the liberal application of radar can undermine the benefits offered by ultrasonic transmitters and controllers, and it can introduce a higher cost of ownership in applications where ultrasonics provide dependable performance.

Siemens Process Instrumentation