Fluctuation issue of E+H radar level gauge
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FMR240, with a waveguide. The tank heights are 18 meters and 11 meters; when the liquid level is near empty or full, there are significant fluctuations in the level, with a range of 4-8 meters. The damping and bandwidth have been modified. I redid the MAPPING; the problem did not occur for a while, but after a day or two, the same issue appeared again.
I’ve read quite a few posts recently about radar level gauges, and in summary, it seems that radar level gauges simply don’t work, is that right?
The fluctuations are minimal most of the time; the biggest issue is the large fluctuations when the tank is full. Previously, when the tank was cleaned at the company, the level gauge showed 3M; the MAPPING was redone and the zero point was marked. After the tank was put into use, the liquid level difference was 3M.
Check if the cable is too long? Has the cable weight fallen off?
Learn it!* ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
I know, does your radar transmit signals via cables or rods?
What is the state of the liquid storage? Does it evaporate? The level gauge I’m using for this application generates noise; filtering is required every ten days or so
Guiding rods are usually quite thin. For a 18-meter length, the guiding rod must experience significant shaking when the tank is empty or full