Magnetrol - Guided Wave Radar Level Transmitter

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Eclipse 705 Transmitter

Eclipse transmitters utilize Guided Wave Radar (GWR) technology for unsurpassed accuracy and reliability in monitoring both liquid and bulk solid levels. Though GWR technology was first employed for the detection of underground cable breaks as early as the 1930s, Magnetrol pioneered its use for liquid level measurement with the introduction of the Eclipse Model 705 transmitter in 1998. No other level measurement technology has captured the attention of the process control industry the way Eclipse has.

Principle of Operation

Guided Wave Radar functions according to the principle of Time Domain Reflectometry (TDR). As shown at left, a generated pulse of electromagnetic energy travels down the probe. Upon reaching the liquid surface the pulse is reflected. Sophisticated circuitry captures these signals in real time (nanoseconds) and reconstructs them in equivalent time (milliseconds) to make level measurement a ractical reality.
Unlike conventional radar, which launches its signal into free air, Eclipse launches its signal within the sealed path of its probe (wave guide) which is in direct contact with the process media. This direct contact makes the signal less vulnerable to distortion brought on by process conditions that might thwart through-air technologies.
Eclipse transmitters have also been designed for easy setup and configuration. A compact instrument that is easy to handle and install, Eclipse’s innovative housing makes measurement data easy to read.