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3 Reasons the PRS Excels in Solids Level Measurement

Close up view from above of quinoaTo get an accurate level measurement, a non-contact sensor has to be able to ascertain where the surface of the measured substance is. And while liquids generally “find their own level,” every solid piles in its own special way. Some lie wide, shallow, and evenly; others collect in pillars with sharp slopes. Added to the variety of the collecting shapes is the shape of the individual pieces: smooth or jagged, rectangular, round, or flat. All of this makes for chaotic readings when using reflecting sound waves or electromagnetic waves.

Unless you have a True EchoTM PRS Dual Frequency Pulse Radar Level Transmitter for Solids. The True Echo PRS has been designed to manage of the chaos of solids level measurement and produce precise, accurate readings, regardless of the piling or piece shapes. Let’s look at three of the reasons the PRS excels in solids level measurement.

Dual Frequency

The first built-in reason the PRS excels is right there in the name: Dual Frequency. The PRS uses two frequencies, 6.3 GHz and 26 GHz, to build an accurate measurement from the complex reflections. But the PRS doesn’t just blast away with both frequencies. It automatically adjusts the power behind each frequency to get the highest quality received signal for the lowest amount of power used. That’s smart measurements and smart power management.

Narrow Beam Spread

APG's PRS Dual Frequency Pulse Radar Level Transmitter for SolidsAnother advantage the PRS has is its narrow beam spread. The PRS’s standard 6” steel horn has a miniature antenna that generates a 3°-from-center beam spread. 3°. That means that 10 feet from the antenna, the beam pattern is circle with a radius of 6.3”. At 30 feet, the radius of the circle is just 19”, and at 50 feet, it’s still only 31.5”.

This helps in two ways: First, a focused beam means more precise level detection on a slope. It’s just easier to measure distance to a small point versus a larger, tilted area. And second, a smaller beam spread means the PRS can be used in smaller spaces. Most situations that require up to 50-foot measurements will have a much larger area than a circle that is 63” across (50 feet tall by 5 feet 3 inches wide is … really narrow).

Ease of Use

The third reason the True EchoTM PRS excels in solids level measurement is the ease of use you’ll find across the full line of True EchoTM Pulse Radar Level Transmitters. Every True EchoTM Pulse Radar comes with push-button, field-configurable 4-20/20-4 output and built-in, self-tuning signal calibration. For more advanced setup, RS-232, RS-485, or HART communications are available for use with Pulse Radar Probe Gateway Software. Easy, easy, easy.

Two frequencies, narrow beam spread, and ease of use. These are just three of the ways that the True EchoTM PRS Dual Frequency Pulse Radar Level Transmitter for Solids makes complicated solid level measurements easy.

Want to know more? Our Measurement Experts love to help people match their measurement needs with the best sensor technology. Contact us today to see how we can help you.


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top photo credit: Kristina D.C. Hoeppner via flickr cc

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