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644 Temperature Transmitter
  • 644 Temperature Transmitter

Rosemount 644 Temperature Transmitter


Rosemount 644 Temperature Transmitter

Versatile temperature transmitter delivers field reliability and advanced accuracy to meet demanding process needs 

•DIN A style Head Mount transmitter or Rail Mount transmitter
•Variety of DIN A enclosure options
•Single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)
•HART / 4-20 mA, FOUNDATION fieldbus or Profibus PA protocols
•Transmitter-Sensor Matching with Callendar-Van Dusen 
•LCD display
Optimize plant efficiency and increase measurement reliability with industry-proven capabilities and specifications
•Two-year stability rating reduces maintenance costs
•Transmitter-Sensor Matching eliminates the interchangeability error of sensors,  improving measurement point accuracy by 75%
•PlantWeb alerts and user-centric Device Dashboards communicate important diagnostics and ensure process health
•Compensation for ambient temperatures enhances transmitter performance 
•Aluminum or stainless steel connection heads for simplified electrical connections and wiring
A standard diagnostic offering provides visibility into process conditions
•Open/short sensor diagnostics assist with detecting issues in the sensor loop
•Intermittent Sensor Detect and Open Sensor Holdoff provide reliability in high vibration and noisy environments
•The terminal temperature feature verifies the installation temperature to ensure optimal transmitter operation
Explore the benefits of a Complete Point Solution from Rosemount Temperature Measurement 
•An “Assemble To Sensor” option enables Emerson to provide a complete point temperature solution, delivering an installation-ready transmitter and sensor assembly
•Emerson offers a selection of RTDs, thermocouples, and thermowells that bring superior durability and Rosemount reliability to temperature sensing, complementing the Rosemount Transmitter portfolio


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