Difference between 2-wire, 3-wire, and 4-wire signal transmitter connections
4–20mA sensor transmitters are very common in industries to measure physical parameters such as pressure, temperature, flow, etc. Based on how they are connected to the process control and automation systems, they are classified into 2-wire, 3-wire, and 4-wire signal transmitters. This article will help you understand the underlying concepts and the difference between 2-wire, … Read more