Types of pressure sensors measuring pressure: pressure types mainly include gauge pressure, absolute pressure, differential pressure, etc. Gauge pressure refers to the pressure that is less than or greater than atmospheric pressure based on atmospheric pressure; Absolute pressure refers to the pressure that is higher than the absolute pressure zero position based on the absolute pressure zero position; Differential pressure refers to the difference between two pressures. Pressure sensor measurement range: In general, 80% of the measurement range is selected according to the actual measured pressure. The sensor confirms the power supply and output signal: current output (two-wire), voltage output (three-wire), and RS485 output (four-wire) are typically available. Compatibility of pressure sensor measuring medium and contact material: In some measuring occasions, the measuring medium is corrosive, and it is necessary to select materials compatible with the measuring medium or carry out special process treatment to ensure that the transmitter is not damaged. Pressure sensor accuracy level: the measurement error of the transmitter is divided according to the accuracy level, and different accuracy corresponds to different basic error limits (the percentage of full-scale output); In practical applications, the selection is made according to the control requirements of the measurement error and in accordance with the principle of applicable economy. Confirm the on-site working environment and others: understand whether there is vibration and electromagnetic interference, etc., and provide relevant information when selecting pressure sensors so that corresponding treatment can be taken; When selecting, other methods such as electrical connections should also be considered according to the situation. Star Meter Technology Co., Ltd. is a high-tech enterprise integrating R&D, production and sales. Specializing in the production of pressure transmitters, liquid level transmitters, temperature transmitters, temperature and humidity transmitters, differential pressure transmitters, soil moisture transmitters, 3051 transmitters and related instrumentation accessories. A number of products under the Xingyi brand have obtained a number of patent certificates issued by the state, such as CE certification, IS9001 certification, SGS certification, TüV SüD certification, explosion-proof certification, etc. Product consultation, product customization, agent, technical inquiry, quotation, etc. If you have any questions, please contact Xingyi: 400-600-4496!