Rosemount 644 Temperature Transmitter
Rosemount 644 Temperature Transmitter
Fit 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 Revisions, FOUNDATION
Fieldbus or PROFIBUS PA Protocol
support
SIL3 Capable: IEC 61508 certified by an accredited 3rd party 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
Rosemount 644 Temperature Transmitter
Single or Dual sensor inputs for RTD, Thermocouple, mV and Ohm
DIN A Head mount and Field mount transmitters
SIL3 Capable: IEC 61508 certified by an accredited 3rd party 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)
LCD display
Enhanced display with LOI
Integral transient protection
Diagnostic suite
Enhanced accuracy and stability
Transmitter–Sensor Matching with Callendar Van Dusen constants
HART rail mount
Single sensor input for RTD, Thermocouple, mV and Ohm
Custom alarm and saturation levels
Transmitter–Sensor Matching with Callendar Van Dusen constants
Hardware alarm switch
Rosemount 644 Temperature Transmitter
Rosemount 644 Temperature Transmitter
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Contact Information
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