Modular temperature transmitter family

Rosemount 644 temperature transmitters can be customized for specific applications.


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Rebecca Kopke explains some of the new features available with the Rosemount 644 temperature transmitter family.

Emerson Process Management has released an enhanced Rosemount 644 temperature transmitter, featuring ease-of-use improvements and a modular design that enables customized functionality at each process point. “We are excited to unveil this innovative addition to Emerson Process Management’s complete portfolio of temperature measurement solutions,” said Nick Grant, Emerson Process Management’s vice president of worldwide temperature. “The 644 transmitter’s modularity, along with its comprehensive diagnostics, accuracy, and proven reliability, gives users valuable clarity  into their process so they can achieve much greater efficiency, reduce business and safety risks, and consistently meet production and quality targets.”

The Rosemount 644 Temperature Transmitter’s modular components give users flexibility to customize its base model to fit any application. A thoughtful, human-centered design makes the device easy to wire, with clear, straightforward diagrams and improved accessibility. The transmitter interface and second sensor input help to minimize installation and maintenance time, and increase productivity. 

Key capabilities now available in the 644 include Hot Backup and Sensor Drift Alert, which ensure seamless performance in the event of a sensor failure, and advance notification of potential issues so users can be proactive and maintain total process control. The enhanced 644 is SIL2 safety certified to meet any safety application requirement and users receive full documentation for easy SIS compliance. Its Local Operator Interface (LOI) option is new to the market, and provides a cost-effective and convenient solution for on-the-spot commissioning and in-field configuration. With its intuitive menu structure, users have immediate access to the information they need to troubleshoot issues, validate measurements or make adjustments to ensure efficiency and reliability.

Edited by Peter Welander,

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