How to Scale and Calibrate Analog 4-20mA Current Loops | LogicHobbyist
In industrial automation and process control networks, field instrumentation signals must travel across hundreds of meters of copper wiring through environments saturated with heavy electromagnetic interference (EMI). While raw voltage signals (0-10V) degrade rapidly due to line resistance over long runs, analog 4-20mA current loops maintain absolute signal integrity regardless of wire distance. To interface … Read more