How should a pressure transmitter be selected?

The pressure transmitter is a very simple and durable measuring instrument, which is widely used in many industrial environments, such as water conservancy and hydropower, railway transportation, intelligent buildings and so on. There are many models of pressure transmitters on the market, so how should we choose a pressure transmitter? First, we should know what the range of pressure ranges we need. When we choose a pressure transmitter, we need to determine a maximum value of the measured pressure in the system. After determining the maximum value, we need to choose a transmitter with a pressure range that is one and a half times more than this maximum value. , so that the pressure transmitter can measure accurately. Second, we need to know what the pressure medium we need to measure is. There are many kinds of pressure media that can be measured by pressure transmitters, such as viscous liquids, mud and so on. When we choose a pressure transmitter, we need to choose according to the pressure medium to be measured. Generally speaking, the contact medium of the pressure transmitter is mainly 316 stainless steel. If our 316 stainless steel is not corrosive, then most pressure transmitters are suitable. But if the medium to be measured is corrosive to 316 stainless steel, then we need to use a chemical seal, so that the pressure of the medium can also be measured. Finally, we need to know the accuracy class or temperature range of the pressure transmitter. There are many factors that determine the accuracy level of a pressure transmitter, mainly including nonlinearity, hysteresis, non-repetition, etc. The higher the level, the higher the accuracy level of the pressure transmitter. A transmitter generally has two temperature ranges, which can be selected according to the needs during use.
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