The most versatile temperature transmitter
Reduce complexity and simplify the day-to-day operations of your diverse temperature applications with
the versatile Rosemount 644 family of temperature transmitters. Make better decisions for your process
with the new and easy-to-use Rosemount 644 Transmitter capabilities including: diagnostics, safety
certification, integral transient protection, and display options.
Features and benefits
Fulfill your needs within one model family with a customizable transmitter design
- DIN head mount, field mount, and rail mount form factors
- 4–20 mA/HART® with Selectable Revision 5 and 7, FOUNDATION Fieldbus or PROFIBUS® PA Protocol support
- SIL3 Capable: IEC 61508 certified by an accredited thirdparty agency for use in safety instrumented systems up to SIL 3 [minimum requirement of single use (1oo1) for SIL 2 and redundant use (1oo2) for SIL 3]
- Enhanced display with Local Operator Interface (LOI)
- LCD display
- Integral transient protection
- Enhanced accuracy and stability
- Transmitter-sensor matching with Callendar-Van Dusen constants
- Variety of enclosures