The HART communication protocol is a communication protocol used between smart meters and control room equipment in the field. After more than 10 years of development, HART technology has become very mature in foreign countries and has become the industry standard for smart meters around the world. The HART protocol pressure transmitter provides two simultaneous communication channels: a 4-20mA analog signal and a digital signal. The 4 – 20mA signal utilizes a 4 – 20mA current loop, which is the industry standard for the fastest and most reliable pressure transmitter in the case of field instruments, to transmit the primary measured values. With the rapid development of microelectronic technology, more and more intelligent pressure transmitters have begun to support the fieldbus protocol of digital signal transmission, HART protocol compared with other fieldbus protocols that only support digital signal transmission, the biggest feature of the HART protocol intelligent pressure transmitter is that it retains the 4-20mA current loop signal while transmitting digital signals, which plays an important role in the transition stage of replacing analog instruments with digital instruments. In addition, HART communication uses a digital signal superimposed on top of the pressure transmitter’s analog signal to transmit information about the pressure transmitter’s other devices. The digital signal of the pressure transmitter contains information from the device, including the status of the device, diagnostics, additional measurements or calculated values, etc. The combination of these two communication channels provides a low-cost, highly reliable, complete field communication solution for pressure transmitters that is easy to use and configure. HART pressure transmitters are widely used in various industrial fields, among which the hygienic HART pressure transmitters have a broader application space for medical technology industry, pharmaceutical industry, food and beverage industry and other fields. 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. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!