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Radar Level Transmitter ELGWR-40

Electronet series ELGWR-40 4-wire TDR-Sensor with single rod or coaxial probe for continuous level measurement and point level detection in liquids, with analog and switching output.


ELGWR-40 uses TDR (Time Domain Reflectometry) technology:low-energy, high-frequency electromagnetic impulses, generated by the sensor’s circuitry, are propagated along the probe which is immerged in the liquid to be measured. When these impulses hit the surface of the liquid, 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 impulses sent and the impulses reflected. The sensor can output the analyzed level as a continuous measurement reading through its analog output, or it can convert the values into freely positionable switching output signals.

TDR-Sensors are also known as Guided Radars or Guided Wave Radars.


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Product Features of Radar Level Transmitter ELGWR-40

Unmatched price/performance ratio
Precise continuous level measurement and reliable point level detection combined in one device
Fully modular probe design, i.e. the probe types are interchangeable without any special tools or welding
Complete galvanic insulation of device electronics from its inputs/outputs and the tank potential (no problems with electrochemical corrosion protection)
Highly robust measurement due to 4-wire design and innovative signal analysis and disturbance signal suppression

The innovative TDR technology enables direct, preciseand highly reliable continuous level measurement as well as point level detection in almost every liquid – independent of changing process conditions (such as density, conductivity, temperature, pressure, vapour and turbulence).

ELGWR-40 has almost no installation restrictions it can be mounted in small tanks, tall and narrow nozzles and it measures precisely even with difficult tank geometries or close to interfering structures. ELGWR-40 is also especially suitable in bypass chambers and stilling wells. It is suitable for all types of processing and storage applications and has an exceptional performance in liquids with low dielectric constant (i.e. low reflectivity) such as oils and hydrocarbons

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