Back To Top
Rosemount™ 3491 Controller - Standard
rosemount 3490 controller
The Rosemount 3491 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.
Rosemount™ 3491 Controller - Standard


Power Supply
115 or 230 VAC, 15 to 30 VDC
4-20 mA or HART®
Backlit LCD


  • Wizard assisted programming, with password protection to prevent unauthorized access
  • Pre-programmed tank shapes, flow algorithms, and control routines simplify configuration
  • Tough weatherproof wall mount enclosure for internal and external mounting
  • Compatible with HART 5, 6, and 7 transmitters
  • Bright LCD display of measured value and input/output status