SunYuan Technology has been plowing into the research and development of analog signal isolation, amplification and transmission technology in the intelligent sensor and instrumentation industry for 22 years.，During this period, we have obtained 9 national invention patents, 38 utility model patents and 12 computer software copyrights in the industry. It has been recognized as a national high-tech enterprise for 15 consecutive years since 2007, and has obtained the qualification of Shenzhen Specialized and Specialized New Enterprise. The company insists on carrying out improvement and innovation work, constantly improve product quality, reduce production costs, expand the scope of application of the product, push the new research and development of new products, in order to adapt to the current electronic information technology before the rapid development of the situation and to meet the customer's product research and development and innovation and upgrading needs.

The development of a 4-20mA current loop with HART protocol transmission and control of industrial instrumentation, intelligent sensor signal isolation module，It is required to configure signal isolator with HART transmitting function when supporting smart meters with HART protocol in industrial field, and it is also the supplement of two-wire passive type 4-20mA isolation amplifier with HART transmitting products in the previous period. Products in the smart transmitter connected to the signal isolator can be in the system side of the HART manual operator or collector through the signal isolator and field instrumentation communication.。Signal Isolator with HART Transmission is a high-performance signal processing device that combines the advantages of signal isolation and HART communication technology to achieve reliable transmission and accurate measurement of industrial field signals.

ISOEM A4-Px-O1-HT series integrated module has HART transmitting function, supporting bidirectional transmission of HART signals, which can ensure unobstructed communication between on-site HART smart meters and HART acquisition system in the control room, and give full play to the double advantages of isolated transmission of digital and analog signals. The product uses advanced digital technology and electromagnetic isolation technology to allow bidirectional communication of HART protocol signals while still isolating the 4-20mA inputs and outputs.The HART pass-through function provides a channel for HART signal transmission without crosstalking, altering, etc., the contents of the transmission.Through reliable electromagnetic isolation technology, it effectively suppresses all kinds of interference signals, and at the same time eliminates the interference from on-site signal loops and ground networks to the I0 acquisition system, ensuring the accuracy of signals and the stable and safe operation of the system.

 ISOEM A4-Px-O1-HT series modules use small volume standard SIP12Pin flame retardant shell and resin material package, using a single power supply and in the same chip integrated a group of isolated DC/DC converter power supply and a group of magneto-electrically coupled analog signal isolation amplifier. The module supports the input of 2-wire, 3-wire, 4-wire transmitter or current source signals, the isolation is converted to standard 4-20mA current signal output, while supporting the HART digital signal bidirectional transmission. No external potentiometer element, zero-free and gain adjustment, omitting the need to repeatedly calibrate the zero and fullness of the tedious, which greatly simplifies the user's design and field use costs. The product internal electromagnetic isolation technology compared with the optocoupler isolation technology has a better temperature drift characteristics and linearity, auxiliary power supply single power supply and signal input, output and 3000VDC triple isolation design, so that the user site at the same time in the use of multiple modules, can be used in a single or multiple power supply.

ISOEM A4-Px-O1-HT series modules are simple and easy to use, the products have PCB board welding and standard DIN 35 rail slot fixed two kinds of mounting methods, rail-mounted products with isolated distribution output function, to provide 24VDC isolated power supply to the input side, to realize the industrial field two-wire sensors, transmitters, instruments and other isolated power distribution and signal acquisition of the reliable transmission and precise measurement and control. transmission and accurate measurement and control. DIN-rail mounted products can also realize one-in&one-out, one-in&two-out, two-in&two-out, etc. industrial field of various sensors and instrumentation or control system letter analog signal isolation, distribution, amplification conversion and distribution functions, and can meet the humidity, vibration and a wide range of temperatures (-40 ~ +85 ℃) of the industrial use of the environmental requirements. It has a wide range of applications in the fields of rail voltage monitoring, generator or motor safety operation monitoring, power transmission and distribution remote monitoring, instrumentation and sensor signal transmitting and receiving, medical equipment safety isolation barriers, industrial robotics automation control, chemical and nuclear power equipment, and so on.