PROCESSWEST Magazine Online

Guided wave radar level transmitter can be used without calibration

Don Horne   

The NGR is a level sensor that uses TDR technology (time-domain reflectometry) and can be used in oil and water-based liquids without calibration. The NGR’s guided radar uses time-of-flight technology to measure electromagnetic pulses. The time difference between the sent pulse and the reflected pulse is used to calculate the level, both as a continuous value (analog output) and a freely positionable switching point (switching output). With a sensing probe that can be changed out or easily trimmed to length in the field, it is possible to integrate the sensor quickly into almost any level sensing application. The NGR can work in deposit-forming and foaming liquids. The sensor’s intuitive setup uses four buttons with a display to ensure quick and easy adaptation to the application.



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