Rosemount 644 HART Temperature Transmitters
Features 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 third 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 Calendar-Van Dusen constants
□Variety of enclosures
HART head mount and field mount
□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 third 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 FOUNDATION Fieldbus
□Single sensor input for RTD, thermocouple, mV, and Ohm
□DIN A head mount transmitter
□Standard function blocks: two analog inputs, one PID, and one backup Link Active Scheduler (LAS)
□LCD display
□ITK 5.01 compliant
□Transmitter–sensor matching with Callendar-Van Dusen constants
□Integral transient protection
Rosemount 644 PROFIBUS PA
□Single sensor input for RTD, thermocouple, mV, and Ohm
□DIN A head mount transmitter
□Standard function blocks: one physical, one transducer, and one analog output
□LCD display
□Compliant to PROFIBUS PA Profile 3.02
□Transmitter–sensor matching with Callendar-Van Dusen constants
Connections Diagrams
