Rosemount ™ 644 temperature transmitter

Rosemount 644 temperature transmitter functional diversity, can use HART ®, FOUNDATION or ™ fieldbus PROFIBUS ® agreement, with the top, field or track installation style as well as a variety of housing options. By adding a local operator interface (LOI), the transmitter configuration can be updated on the spot without tools. The transmitter also includes Hot Backup ™, warning and thermocouple sensor drift diagnostic functions such as performance degradation in response to different application requirements.

Specifications

*Precision

+ / - 0.10 ° C (+ / - 0.18 ° F)

*The stability of

5-year stability

*The quality assurance

12/18 months, 3 years or 5 years limited warranty options

*The input

Universal sensor input (RTD, T/C, mV, ohms) is supported. Single or dual sensor assembly is also supported

*The output signal

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

*The shell

Field mounting, DIN A head mounting or rail mounting

Display/interface

LCD display or LCD display with local operator interface (LOI)

*The characteristics of

Very general temperature transmitter, can be used to HART ®, FOUNDATION ™ or Fieldbus PROFIBUS ® agreement.

• Multiple shell selection to achieve multiple installation configurations, including top, field or guide rail installation.

• The LOI option eliminates the need for special configuration tools, such as field handlers, for ease of use.

• Transmitter - sensor meets kalende-van dosen constant matching to reduce total measurement errors.

• Hot Backup ™ function is equipped with double sensor and sensor drift warning, ensure integrity measurement.

• The thermocouple aging diagnosis function can monitor the health of the thermocouple and prevent the failure caused by aging.

• Minimum and maximum temperature tracking can monitor the temperature limit value to facilitate troubleshooting.

• Device dashboard can be used as a simple interface to simplify device configuration and perform diagnostic fault troubleshooting.

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