The Rosemount 3490 Controller provides comprehensive control functionality for any of your 4–20 mA or HART compatible transmitters. The backlit display gives you a clear visual indication of the measured values and status of all inputs and outputs. It is developed with the customer in focus and utilizes an easy to navigate menu structure as well as a wizard for assisted start-up. The Rosemount 3490 is a smart device that can take input from up to two transmitters and perform sum or differential calculations to provide a single current output. It is also capable of providing on-board logging for flow calculations.