Product category:
Level Sensors and Leak Detectors
News Release from: KFA | Subject: KFA1
Edited by the Engineeringtalk Editorial
Team on 14 March 2008
Low-cost system monitors levels
TDR technology enables an inexpensive and reliable level measurement that is independent of application conditions.
KFA has released the KFA1, a TDR-Sensor with a coaxial probe for continuous level measurement and point level detection in liquids, with analogue and switching outputs The KFA1 uses TDR (time domain reflectometry) technology, a process for establishing electromagnetic wave runtimes
This article was originally published on Engineeringtalk on 3 Jul 2000 at 8.00am (UK)
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A low-energy electromagnetic impulse generated by the sensor's circuitry is propagated along the inside of the coaxial probe.
When this impulse hits the surface of the medium to be measured, part of the impulse energy is reflected back up the probe to the circuitry, which then calculates the fluid level from the time difference between the impulse sent and the impulse reflected.
The sensor can output the analysed level as a continuous measurement reading through its analogue output, or it can convert the values into freely positionable switching output signals.
TDR technology enables an inexpensive and reliable level measurement that is independent of application conditions.
KFA1 is suitable for continuous level measurement as well as for point level detection in almost every liquid - changes in the properties of the measured liquid do not affect the sensor.
The sensor has been designed for very precise and reliable measurement in small tanks and vessels.
Typical applications are coolants, oil, cleaning and degreasing agents.
The sensor is mounted into the tank vertically from the top via its connection thread.
It can be mounted directly into a weld-in socket or a nozzle.
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