Features:
The Rosemount 644 Series Temperature Transmitter is ideal for single point temperature measurements in a variety of applications with high accuracy and stability. Two-wire 4–20 mA/HART or FOUNDATION fieldbus outputs are available. To meet your installation needs, these precision temperature transmitters are available in a variety of mounting styles and enclosures.
product description:
Key features include:
2 years stability
Matching the sensor to the sensor will increase system accuracy by 75%.
Ambient temperature compensation eliminates the effects of ambient temperature
An integrated LCD meter is available for easy display of process temperature and diagnostic information.
Available in DIN-A size top and rail mounting
Polished stainless steel housings are used in the sanitary and biopharmaceutical industries.
It can be integrated with Rosemount sensors to provide customers with a total solution.
644 protocol specific features
HART FoundationTM Fieldbus
Enhanced EMC performance for reliable measurements - NAMUR NE 21 compliant Standard function modules: 2 analog input function blocks, 1 PID and 1 alternate link active scheduler (LAS)
Custom alarm PID module for on-site control
Can be used for top or rail mounting type FISCO certified fieldbus installation
Hardware Alarm Switch Available Factory Control Network (PlantWeb) Alarm
Industry standard HART control system 18-bit digital-to-analog converter with ambient temperature compensation for enhanced performance and process quality
Power supply voltage: 12 - 42.2V Power supply voltage: 9 - 32V
Accuracy for Pt100 RTD, +0.15 °C (+0.27 °F)
Ambient temperature effect is subject to +0.15% reading or 0.15°C
2 year stability is subject to +0.15% reading or 0.15°C
Input 2, 3, 4 wire RTD, thermocouple, mV, ohm
Vibration certification 3 g, 60-500 Hz
Contact email:sales006@rig123.com
Leon Lee
