E H guided-wave radar level gauge and differential pressure level gauge
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We have concerns regarding the liquid level in our spherical tank. The medium inside the tank is liquefied gas, and it is free of water (the dehydrating tank is empty). The readings provided by the guided wave radar level gauge and the differential pressure level gauge differ significantly from each other, with the difference ranging from 0.5 meters to over 1 meter. It’s not possible to determine the liquid level inside the tank at the moment (the differential pressure level gauge is shown on the upper side in the diagram, while the radar level gauge is on the lower side); it’s unclear which level gauge to trust. I hope experts can help answer this question. Thank you
The readings from the instruments correspond to the actual position of the material surface. As for the degree of deviation, in the case of differential pressure gauges, the error arises from conversion errors resulting from differences between the density value used and the real-time density value. The readings for the liquid level do not fluctuate wildly; looking at the real-time curve, it is smooth and continuous. Radar level gauge, you crazy radar guy, you insane Nazi dog! Look at that real-time curve in the graph – it drops off suddenly, just plummets into the puddle; it’s as if it’s committing suicide and returning to zero. {:2_42:} .
The readings from the instruments correspond to the actual position of the material surface. As for the degree of deviation, in the case of differential pressure gauges, the error arises from conversion errors resulting from differences between the density value used and the real-time density value. The readings for the liquid level do not fluctuate wildly; looking at the real-time curve, it is smooth and continuous. Radar level gauge, radar… crazy guy, Nazi dog, madman. Look at that real-time curve in the graph – it drops really fast, plummets straight into the puddle; it’s like committing suicide by resetting to zero. {:2_42:} .
Radar could be called a dog... If it could maintain accurate measurements at all times, even the moon would be afraid of it and wouldn’t dare show itself; it would be the sun that steps in to take its place at night. {:2_42:}
Radar level gauges are for dirty people, scumbags, weaklings, and idiots.:P Just remember this well and you’ll get it right. . . Is it accurate? A spherical tank is round; **it’s under the leadership of the Party – so what do you care about the tank! {:2_42:}
It is difficult to measure spherical tanks using these two principles; for such tanks, a servo-level gauge combined with a visible magnetic flip-disc or glass-level gauge is a more reliable approach.
The reliability of radar is poor; it is recommended to use a differential pressure level gauge in such cases.
If conditions permit, use a ruler to calibrate and test it.
It’s hard to determine this; if there are local references, use those for judgment. If not, calibrate the differential pressure and use that as a reference