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Rosemount 644 Temperature Transmitter

Rosemount 644 Temperature Transmitter


Device dashboards provide easy interface for simplified device configuration and diagnostic troubleshooting
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

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Specifications

  • 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


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