Two-Wire Temperature Transmitters

4-to-20mA Loop-Powered Transmission for a Variety of Sensors New Family of Devices for Process Monitoring and Control

Transmission of analog input/output signals via 2-wire 4-to-20mA current loops is a long established practice in process control. Such systems have many benefits, including immunity to voltage drops and noise pickup, and the possibility of providing the power for transducer excitation and signal conditioning from a distant control room over the same pair of wires. Read full article



Bob Butler