A simple question about differential pressure
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For example, in the case of a double-flange level gauge with a positive pressure of 200 kPa, a negative pressure of 100 kPa, and a measurement range of 100 kPa, if the transmitter outputs 2%, what does this 2% represent?
Double-flange level transmitters generally require negative migration; if both the range and the amount of migration are correct, an output of 2% corresponds to 2% of the level within the measurement range.
During the installation of double-flange transmitters, special attention should be paid, especially in the area around the diaphragm box; flange connections are generally used, and a root valve is installed in front of the flange. When tightening the bolts, it is advisable to do so diagonally. Perform the migration again. The full range is inconvenient.
It probably refers to a measurement range of 100 kPa to 200 kPa, with an output of 2% corresponding to 102 kPa.
The data you compiled must be arbitrarily invented and does not correspond to reality, so I “don’t understand” it.
With a positive pressure of 200 kPa and a negative pressure of 100 kPa, the range should be 300 kPa. At an output of 2%, this would be 300*2% – 100 kPa, which equals -96 kPa.
This should be the liquid level display corresponding to 2KP.
This should be the liquid level display corresponding to 2KP.
With a positive pressure of 200 kPa and a negative pressure of 100 kPa, the range should be 300 kPa. At an output of 2%, this would be 300*2% – 100 kPa, which equals -96 kPa. ? -94Kpa