The Introduction Of Rosemount 644 Temperature Transmitter

Input

Dual and single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)

Output Signal

4-20 mA /HART™ protocol, FOUNDATION™ fieldbus protocol, PROFIBUS™ PA protocol

Housing

Field mount, DIN A head mount or rail mount

Display/Interface

LCD Display, LCD Display with Local Operator Interface (LOI), or LED

Diagnostics

Basic diagnostics, Hot Backup™ capability, sensor drift alert, thermocouple degradation, min/max tracking

Calibration Options

Transmitter-sensor matching (Callendar-Van Dusen constants), 5-point calibration

Certifications/Approvals

SIL 2/3 certified to IEC 61508 by an independent 3rd party, hazardous location, marine type, see full specs for complete list of certifications

Features

 

• Extremely versatile temperature transmitter available in HART™, FOUNDATION™ Fieldbus or PROFIBUS™ protocols
• Diverse mounting configurations including head, field or rail mount with many enclosure options
• LOI option eliminates the need for special configuration tools (i.e. field communicator) for ease-of-use
• Transmitter-sensor matching with Callendar-Van Dusen constants reduces total measurement error
• Hot Backup™ capability and sensor drift alert with dual sensors ensure measurement integrity
• Thermocouple degradation diagnostic monitors thermocouple health to detect degradation before failure
• Minimum and maximum temperature tracking observes temperature extremes for easy troubleshooting
• Device dashboards provide easy interface for simplified device configuration and diagnostic troubleshooting

Rosemount  644 Temperature Transmitter