Engineered for versatility, the Rosemount 644 Temperature Transmitter is available with HART, FOUNDATION Fieldbus or PROFIBUS protocols in head, field or rail mount styles and a variety of enclosure options. By adding a Local Operator Interface (LOI), you can update your transmitter configuration in the field without tools. For diverse application requirements, this transmitter includes diagnostic capabilities, such as Hot Backup capability, sensor drift alert and thermocouple degradation.
Input:Dual and single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)
Output: Signal4-20 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,etc.
Versatile Protocol Support:Extremely versatile temperature transmitter available in HART, FOUNDATION Fieldbus or PROFIBUS protocols
Flexible Mounting Options:Diverse mounting configurations including head, field or rail mount with many enclosure options
Easy Configuration with LOI:LOI option eliminates the need for special configuration tools (i.e. field communicator) for ease-of-use
Transmitter-Sensor Matching:Transmitter-sensor matching with Callendar-Van Dusen constants reduces total measurement error
Hot Backup and Sensor Drift Alerts:Hot Backup capability and sensor drift alert with dual sensors ensure measurement integrity
Thermocouple Health Monitoring:Thermocouple degradation diagnostic monitors thermocouple health to detect degradation before failure
Temperature Extremes Tracking:Minimum and maximum temperature tracking observes temperature extremes for easy troubleshooting
Simplified Configuration with Dashboards:Device dashboards provide easy interface for simplified device configuration and diagnostic troubleshooting
Dimension
Rosemount 644 Field Mount
Rosemount 644H (DIN A Head Mount)
Company Profile
Cold Valley Intelligent Technology (Shanghai) Co., Ltd. is a member enterprise of Hanshan (Cold Mountain) Intelligent Technology Co;
(hereinafter referred to as Hanshan Intelligent Technology Co., Ltd. group) was formally established in Shanghai in 2013;
Its founding team are all from top international automation companies; have over 20 years of experience in automation industry; over 20 years of experience in automation engineering; over 10 years of experience in consulting and implementation of digital solutions; aiming at providing quality automation and digitization products and services for global customers; the company's headquarter is located in Shanghai, China;
The company has been deeply cultivated in the petrochemical industry for more than 20 years; has in-depth understanding of the automation and digitalization needs of upstream, midstream, and downstream enterprises; provides professional products and solutions based on automation and digitalization and full life cycle services for petroleum, chemicals, electric power, biomedicine, APIs, food and beverage, liquor, metallurgy, and non-ferrous metals.
You may have this questions
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A:Upon receipt of your inquiry, we will provide you with a comprehensive technical document. This will enable you to verify the detailed process parameters and technical specifications required. Based on your specific requirements, we will then recommend the most suitable model.
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A:Certainly. Once you send us the model you require, we will first need to verify the suitability of the model. If necessary, we will provide some more cost-effective optimization suggestions. After confirmation, we can proceed with a formal quotation.
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