Rosemount 3490 Controller Reduces Complexity in Water and Wastewater Applications

Rosemount 3490 Controller for level and flow measurement applications helps to reduce complexity, optimize processes, and enhance sustainability. The Rosemount 3490 provides comprehensive control functionality for 4-20 mA or HART-compatible transmitters and is an ideal solution for water, wastewater, and process industry applications.

The Rosemount 3490 is the first controller to feature simple-to-program configuration wizard guides to help users set up the controller, making this procedure significantly less complex and time-consuming. It also has a modern, intuitive graphical interface, an easy-to-navigate menu structure, and a backlit 4.3-in. color LCD display, which simplifies ongoing operation and device status readings.

Combining the Rosemount 3490 Controller with Emerson’s non-contacting radar Rosemount 1208C Level and Flow Transmitter enables users to achieve accurate and reliable measurements with simple configuration over HART. This helps them to optimize operational efficiency across a broad range of water and wastewater applications, including the automatic control of up to six pumps, filtration operations, sludge handling, and flow in open channels, flumes, and weirs. The design is ideal for use in harsh environments typically encountered in these applications.

The accuracy of the level and flow measurements helps to prevent overfills and water wastage. To help ensure compliance with industry directives and regulations, the Rosemount 3490 simplifies report and documentation handling. It enables a variety of flow measurements to be totalized, differentials to be calculated, and data to be easily logged and shared with regulatory authorities through a web interface via Ethernet connectivity.


  • User-centric design and interface
  • Setup within minutes featuring four easy-to-configure application wizards
  • Compatible with 4-20 mA or HART sensors, accepts up to two transmitters
  • All measurements can be logged, totalized, differenced, summed and averaged
  • Encapsulated enclosure for use in harsh outdoor environments
  • Physical buttons and bright colored LCD display for easy screen readability, NAMUR compliant
  • Use level measurement metrics to gain full control over pumping operations by controlling pumps or alarms through up to six output relays
  • Accessories available for different types of field mounting needs

Configuration Wizards Level and Pump Control, Open Channel Flow Measurement, Differential Level Measurement, Tank Volume Calculations
Input Compatability 4-20 mA or HART
Power Supply 100-240V AC
Ambient Temperature -40 to 60°C
Enclosure Rating IP66/67; Type 4X
Host Communication Ethernet: Modbus TCP/IP, http

Emerson Electric Co.
St. Louis, MO
(314) 553 2000

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