Hello everyone, welcome to the Xingyi class, in this issue, we will talk about the common pressure transmitter two-, three-, four-wire wiring methods and differences. There are generally three types of wiring of pressure transmitters that we are familiar with: two-wire system, three-wire system, and four-wire system. Let’s talk about these three wiring methods: Two-wire system – The two wires transmit both power and signal, that is, the load output by the sensor and the power supply are connected in series, and the power supply is introduced from the outside and connected with the load in series to drive the load. This connection is usually used by pressure transmitters that output a current signal. Three-wire system – Three-wire pressure transmitters are wired in such a way that the positive end of the power supply and the positive end of the signal output are separated, but the other terminal block is connected by the same wire. This connection method is generally used for the output voltage signal. Such as pressure transmitter 0~10VDC, 1~5VDC, 0~5VDC and other standard signals. Four-wire system – The four-wire system is different from the two-wire system and the three-wire system, which consists of two independent circuits that do not interfere with each other. That is, two wires are responsible for the supply of power supply, and the other two wires are responsible for outputting the signal that is converted and amplified. Because the output circuit is independent, it can output both voltage signal and current signal. That’s all there is to know about the wire system of pressure transmitters. Star Meter Manufacturing 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. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!