What Is an I/P Converter? How 4–20 mA Controls Pneumatic Valves
What Is an I/P Converter? How 4–20 mA Controls Pneumatic Valves Industrial Current to Pressure Converter – Fairchild TD6000 Series In modern industrial automation, electronic controllers like PLCs and DCS systems often need to operate pneumatic control valves. This is where an I/P Converter — also called a Current to Pressure Converter — plays a critical role. What Is an I/P Converter? An I/P Converter (Current-to-Pressure Converter) is an electro-pneumatic device that converts an electrical control signal, typically 4–20 mA , into a proportional pneumatic output such as 3–15 PSI . This conversion allows electronic control systems to accurately regulate pneumatically actuated control valves , dampers, and positioning devices. Why 4–20 mA and 3–15 PSI Are Industry Standards The 4–20 mA current loop is widely used in industrial environments because it is resistant to electrical noise and allows fault detection. Similarly, 3–15 PSI is the most common pneumatic control ...