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80 GHz radar measurement

A new technology for more reliability and safety in your processes

The high-accuracy Micropilot NMR81 is the world’s first radar instrument measuring levels in liquids using a transmitting frequency of 80 GHz. The device was developed for high-accuracy measurement of levels in custody transfer applications and is certified for this purpose by independent test authorities. The 80 GHz technology features an array of advantages.

Micropilot NMR81 ©Endress+Hauser

Benefits

  • Micropilot NMR81 uses a sharply focused beam angle of 3°. A 10 GHz radar instrument with an antenna of the same size has a beam angle of 21°. Measurement is very reliable because the radar beam avoids objects such as pipes or baffles on tank walls.

  • In general, longer measuring ranges than with other technologies are possible – and the accuracy stays the same. Our tank gauging expert, Micropilot NMR81, achieves maximum accuracy of ±0.5mm (±1/32inch) over measuring ranges up to 30m (98ft).

This technology helps to reduce engineering efforts due to easier integration of 80 GHz radar device into tanks without taking care of objects in the tank. It also increases plant availability and productivity due to highly reliable measuring results.

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