ATO signal isolator is an instrument for transmitting, converting, isolating, transmitting and computing industrial signals in the automation control system. It can cooperate with various industrial sensors and field instruments to retrieve parameter signals, isolate transmission and transmission, and meet the needs of users locally. The need to monitor remote data. Instruments are widely used in data acquisition, signal transmission conversion, PLC, DCS and other industrial measurement and control systems in the fields of machinery, electrical, telecommunications, electric power, petroleum, chemical industry, steel, sewage treatment, building construction, etc., to improve and supplement the system analog I/ O The plug-in function improves the anti-interference ability of the automation control system and ensures the stability and reliability of the system.