PID based Instrumentation & Control Trainer is designed to demonstrate P, P+I and P+I+D action in open loop mode. The Instrumentation & Control Trainer is based on electronic open type PID Controller. The Instrumentation & Control Trainer enables the input and output to be varied and measured. The PID based Instrumentation & Control Trainer helps to study the effect of change of PB, It and Dt and incorporates standard industrial components.