Seeking help with guided wave radar level gauges
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In a cable-type guided wave radar level gauge, is the level measured by the gauge equal to the length of the cable that is submerged in the liquid? For example, if a cable is 2 meters long and 1 meter of it is submerged in the liquid, then is the level indicated by the gauge 1 meter? Also, what does threshold voltage mean, and when is it necessary to adjust this parameter?
What brand and model is your radar? It feels like Rosemont, right? What you said is more or less correct. For a contact-type radar, the length of the cable determines the maximum measurement range of the radar; the height up to which liquid is present, measured from the end of the cable, indicates the liquid level. But the prerequisite is that the end of the cable is close to, but does not touch, the bottom of the tank. The threshold voltage is used to process the signals detected by the radar. The radar can detect many types of signals: interference signals, false signals, and genuine signal indicating liquid level, and the intensity of these signals varies. It’s like having a row of ten people standing there, with varying heights; one of them is the tallest at 2 meters, while the other nine are all under 1.5 meters tall. If I’m sure that the person who is 2 meters tall is the one I want, then I’ll set a threshold of 1.6 meters, which will leave only that 2-meter-tall person. I’m not sure if you understand now after saying this
Hello, may I ask how to set the threshold voltage for Rothmunt?
It needs to be set based on the intensity of all signal points. Analyze each specific issue individually; there is no definitive conclusion