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Head Mount Temperature Transmitter-644
May 22, 2017

Specification :

 Power supply voltage: DC10V ~ 32V;

 Output signal 4-20mA superimposed HART □ protocol digital communication (two lines),

 HART communication does not affect 4-20mA analog output

 Through the controller and PC configuration debugging software remote management;

Internal use of Pt100 to measure the ambient temperature for thermocouple cold junction compensation;

Cold end compensation accuracy: 0.5 ℃;

Damping: 0-32 seconds adjustable;

Data refresh rate: 4 times / S;

Stability: ± 0.2% / year

Operating temperature environment: -40 ℃ ~ +85 ℃

(LCD operating temperature range: -20 ℃ ~ +70 ℃);


Basic information :

The Rosemount 644 is a versatile temperature transmitter that
delivers field reliability and advanced accuracy to meet demanding
process needs.
Transmitter features include:
• HART / 4-20 mA, FOUNDATION fieldbus or Profibus PA protocols
• DIN A or Rail Mount transmitter types
• LCD Display (Option Code M5 or M6)
Transmitter-Sensor Matching (Option Code C2)

• 3-Point Calibration Certificate (Option Code Q4)
• Assemble to Sensor options (Option Code XA)

644


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