Isolated safety barrier

4 ~ 20mA current signals (one in and one out) from the safe area are isolated and output to the dangerous area, driving on-site valve positioner and other equipment, and supporting bidirectional transmission of HART digital signals. The safety level of this product meets the requirements of SIL2 and requires independent power supply. The input, output and power supply are isolated from each other and have the function of line fault detection on the output side.