New and Original Rosemount Emerson 644 Hart Foundation Profibus PA Temperature Transmitter

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.

1. Innovative R & D Approach

2. Key Features of the 644 Temperature Transmitter

• High - Accuracy Measurement: The 644 Temperature Transmitter is capable of delivering extremely accurate temperature readings. It can be paired with different types of temperature sensors, such as thermocouples and resistance temperature detectors (RTDs). When used with a Pt100 RTD, it can precisely measure temperatures in the range from - 200°C to + 850°C. With a K - type thermocouple, the measurement range extends to - 200°C to + 1372°C, providing reliable data for various industrial processes.
• Flexible Configuration: Recognizing the diverse requirements of different industries, the transmitter offers flexible configuration options. Users can easily adjust parameters like the measurement range, output signal type (e.g., 4 - 20mA analog output), and response time according to their specific application needs. This adaptability makes it suitable for a wide range of industrial scenarios, from chemical manufacturing to food processing.
• Robust Build Quality: The 644 Temperature Transmitter is built to withstand harsh industrial environments. It comes with different IP ratings, such as IP65 and IP67. An IP65 - rated model can effectively prevent dust ingress and resist water jets from all directions, making it suitable for dusty factories or areas prone to occasional water splashes. The IP67 - rated version can even endure short - term immersion in water, which is ideal for outdoor or wet - area applications.
• Fast Response Time: Some models of the 644 Temperature Transmitter are designed with a high - speed (HS) feature. This enables them to quickly detect and respond to rapid temperature changes, which is crucial in industries where temperature variations occur suddenly, such as in high - speed heating or cooling processes.

3. Technical Specifications

• Output Signal: The standard output signal of the 644 Temperature Transmitter is a 4 - 20mA analog signal, which is widely used in industrial control systems. This signal allows for seamless integration with other control and monitoring devices, facilitating efficient process control.
• Measurement Accuracy: Under ideal conditions, the measurement accuracy of the transmitter can reach ±0.1% to ±0.2%. However, factors such as the type of sensor used, environmental conditions, and installation quality may have an impact on the accuracy.
• Power Supply: The transmitter is designed to operate on a stable power supply. The power requirements are carefully calibrated to ensure reliable and consistent performance throughout its operation.

4. Application Areas

• Industrial Manufacturing: In industries like metalworking, chemical production, and machinery manufacturing, accurate temperature measurement is essential for ensuring product quality and process safety. The 644 Temperature Transmitter can be used to monitor and control the temperature of furnaces, reactors, and other key equipment.
• HVAC Systems: In heating, ventilation, and air - conditioning systems, the transmitter helps maintain the desired indoor temperature by accurately measuring the air temperature. This ensures the comfort of occupants and the efficient operation of the HVAC system.
• Energy and Utilities: In power plants, oil and gas refineries, and other energy - related facilities, the 644 Temperature Transmitter is used to measure the temperature of various fluids and gases, which is crucial for process optimization and safety management.

KeRui (Weifang) Automation Equipment Co., Ltd.Specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply to specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.

 1.Q: How long is the delivery?
 -- Mostly within 10days
 2.Q:Can I get a sample? 
 --  Sure, contact our sales please
 3.Q:What is your MOQ? 
 --  1pcs
 4.Q: How about warranty time? 
 -- 12month
 5.Q: How can I visit your factory?
 -- Fly to Qingdao air port, it's our pleasure to pick you up.
 6.Q:How do you control your quality ? 
 -- We have EPR system .we control from parts, process, testing, packing ,retesting.
 Every Sensor will be tested two times before reach you, after that sport test for the third time. Make sure about the quantity.