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Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
1-2
OVERVIEW
Manual This manual is designed to assist in the installation, operation, and
maintenance of Rosemount 644 head mount and 644 rail mount.
Section 1: Introduction
• Transmitter and Manual Overview
• Considerations
• Return of Material
Section 2: Installation
• Mounting
• Installation
• Wiring
• Power Supply
• Commissioning
Section 3: Configuration
• Calibration
• Hardware Maintenance
• Diagnostic Messaging
Appendix A: Specifications and Reference Data
• Specifications
• Dimensional Drawings
• Ordering Information
• Biotechnology, Pharmaceutical Industries, and Sanitary Applications
Appendix B: Product Certifications
• Product Certifications
• Installation Drawings
Appendix C: Foundation fieldbus Block Information
• Information regarding the Function Blocks
Transmitter Features of the Rosemount 644 include:
• Accepts inputs from a wide variety of sensors
• Configuration using F
OUNDATION fieldbus
• Electronics that are completely encapsulated in epoxy and enclosed in
a metal housing, making the transmitter extremely durable and
ensuring long-term reliability
• A compact size and two housing options allowing mounting flexibility for
the control room or the field