Engineered for versatility, the Rosemount 644 Temperature Transmitter is available with HART™, FOUNDATION™ Fieldbus or PROFIBUS™ protocols in head, field or rail mount styles and a …

The Rosemount 644 is a versatile temperature transmitter that delivers field reliability and advanced accuracy and stability to meet demanding process needs. Transmitter features include:

The advanced Rosemount 644 temperature transmitter powers PlantWeb ® by communicating important temperature diagnostics and PlantWeb alerts to ensure process health and enable …

Digital output can be accessed by HART® Communication or Rosemount control system. Total analog accuracy is the sum of digital and D/A accuracies. Change in ambient is with reference …

This manual is designed to assist in the installation, operation, and maintenance of Rosemount 644 Head Mount, 644 Field Mount, and 644 Rail Mount transmitters with the HART protocol.

Reduce complexity and simplify the day-to-day operations of your diverse temperature applications with the versatile Rosemount 644 family of temperature transmitters.

Sep 5, 2025 · With multiple mounting configurations and robust diagnostic capabilities, the Rosemount™ 644 temperature transmitter delivers consistent performance across diverse …

Improve quality with minimum and maximum temperature tracking that records temperature extremes of the process and the ambient environment. The Rosemount 644 is a versatile …

Engineered for versatility, the Rosemount 644 Temperature Transmitter is available with HART™, FOUNDATION™ Fieldbus or PROFIBUS™ protocols in head, field or rail mount styles and a …

Reduce complexity and simplify the day-to-day operations of your diverse temperature applications with the versatile Rosemount 644 family of temperature transmitters.