The zero drift of the pressure transmitter is an important indicator affecting the performance of the pressure transmitter and should be paid attention to. The zero drift of the pressure transmitter refers to the phenomenon that the output signal of the pressure transmitter fluctuates up and down from the zero value in the state of atmospheric pressure, also known as zero drift. Pressure transmitters have many causes of zero drift, such as unstable supply voltage, variable component parameters, and ambient temperature changes. One of the most important factors is the change of temperature, because the transistor is a temperature-sensitive device, when the temperature changes, its parameters UBE, β, ICBO will change, and eventually lead to the static operating point of the amplifier circuit offset. In addition, among the factors, the most difficult to control is also the change in temperature. Secondly, the pressure transmitter application site has a high altitude and low atmospheric pressure. If the pressure transmitter is verified in a plain area, this creates a pressure difference that causes zero drift of the pressure transmitter. In the third case, when the gas moisture in the pressure transmitter pipeline is large and there is negative pressure, it is easy to cause zero point drift. Also, if there is a circuit soldering in the pressure transmitter. Zero drift is also generated. If zero drift occurs during the life of the pressure transmitter, it can be sent back to the manufacturer for recalibration to ensure the measurement accuracy of the pressure transmitter. For any questions such as product consultation, product customization, agent, technical inquiry, quotation, etc., please contact Xingyi hotline: 400-600-4496!