Show how the circuit of given Problem can be modified to provide switched reset times of 0.02, 0.04, 0.06, and 0.08 min.
Problem
A liquid-level system converts a 4-10-m level into a 4- to 20-mA current. Design a three-mode controller that outputs 0-5 V with a 50% PB, 0.03-min reset time, and 0.05-min derivative time. Fastest expected change time is 0.8 min.