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What type of instrument does a pressure transmitter belong to?
1. Gauge pressure transmitter: A gauge pressure transmitter is a pressure transmitter that uses local atmospheric pressure as the reference zero point. 1 Surface pressure transmitter: Surface pressure transmitter is a pressure transmitter with local atmospheric pressure as reference zero. 2． Absolute pressure transmitter: An absolute pressure transmitter is a pressure transmitter that uses vacuum degree as the reference zero point. During use, the reference zero point of the sensor can be automatically adjusted with the change of location and area without calibration. The appearance is identical to that of a gauge pressure transmitter. 2 Absolute pressure transmitter: Absolute pressure transmitter is a pressure transmitter with vacuum as reference zero.In the process of using,the reference zero of the sensor can be adjusted automatically with the change of location and region without correction.The shape of the pressure transmitter is identical to that of the surface pressure transmitter. 3． Differential pressure transmitter: A differential pressure transmitter is a pressure transmitter that measures the pressure difference between two pressure chambers. The differential pressure transmitter has two pressure chambers, "+" and "-". Take on two pressures as comparison values, usually using the end with the higher pressure as the "+" pressure chamber. It should be noted that when ordering a differential pressure sensor, please pay attention to a unique parameter of the differential pressure transmitter - static pressure tolerance. In the application process, the use of high static pressure and low differential pressure is not uncommon on site.
(1) The measured liquid density should be informed to the production unit. (2) When the measuring medium is corrosive, the production unit should be informed. (3) Notify the production unit when the measured medium temperature exceeds -10 ℃ and 60 ℃. 4 Input/insert level transmitter: The level transmitter can be divided into two types:the input
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