Tiankang Analysis of Differential Pressure Transmitter Pressure Pipe Reverse Connection Treatment

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When measuring the liquid level of the container, the output of the instrument is based on the principle of increasing and decreasing. The high pressure side is connected to the pressure guiding tube at the bottom of the container, the low pressure side is connected to the pressure guiding tube at the top of the container, and the throttling device is used to measure the flow rate. When the positive pressure pipe is connected to the high voltage side of the transmitter and the negative pressure pipe is connected to the low voltage side of the transmitter, the above two conditions are the normal connection mode used by the transmitter.
Then if the high and low pressure conduits link back, the transmitter is not working properly, or need to be removed and reconnected. The following is a description of the differential pressure transmitter's reverse connection.
For transmitters that measure static pressure levels, the pressure-transmitting tube is connected backwards, which can reverse the output. When the liquid level is the lowest, the output is 100%. When the liquid level is the highest, the output is 0%. The differential pressure meter that did not migrate in the early years is used as such.
However, when the flow rate is measured, the pressure guiding pipe is reversed. Generally, it cannot work normally, and it needs to be removed and re-linked.
Forward refers to the transmitter differential pressure signal increases, the output also increases, reverse refers to the differential pressure signal increases, the output decreases, any forward and reverse can be converted transmitter, if the pressure pipe reversed , as long as it is changed to reverse output state, and then plus a certain positive and negative zero migration, you can make the transmitter in the normal output direction.
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