644 RTD Temperature Transmitter for Process Automation and Industrial Instrumentation

644 RTD Temperature Transmitter for Process Automation and Industrial Instrumentation

Details:

The 644 RTD Temperature Transmitter is a high‑performance solution designed for precise and reliable temperature measurement in demanding industrial environments. Engineered for process automation and instrumentation, it converts RTD sensor signals into stable, accurate 4–20 mA or digital outputs, ensuring seamless integration with control systems. With advanced diagnostics, robust housing options, and flexible mounting configurations, the 644 transmitter delivers consistent performance even under harsh operating conditions. Its modular design supports both head‑mounted and field‑mounted installations, making it adaptable for a wide range of applications, from chemical processing and power generation to oil & gas and pharmaceutical manufacturing. Renowned for its accuracy, stability, and long‑term reliability, the 644 RTD Temperature Transmitter helps operators achieve tighter process control, reduce maintenance costs, and enhance overall plant safety.

Product Features – 644 RTD Temperature Transmitter

1. High Accuracy & Stability – Provides precise temperature measurement with minimal drift, ensuring long‑term reliability in critical processes.
2. Flexible Input Options – Supports multiple RTD types (Pt100, Pt1000) as well as thermocouples, millivolt, and resistance signals.
3. Versatile Output – Delivers standard 4–20 mA signals with HART communication, and is also available with FOUNDATION Fieldbus or Profibus protocols.
4. Advanced Diagnostics – Built‑in sensor health monitoring, drift detection, and failure alerts help reduce downtime and maintenance costs.
5. Multiple Mounting Configurations – Available in head‑mounted, rail‑mounted, and field‑mounted designs to suit diverse installation requirements.
6. Rugged Construction – Explosion‑proof and weather‑resistant housings ensure reliable operation in harsh industrial environments.
7. Easy Configuration – Can be set up via local interface, handheld communicator, or PC software for fast commissioning.
8. Wide Application Range – Ideal for process automation in industries such as oil & gas, chemical, power generation, water treatment, and pharmaceuticals.

Packing:

Certs:

Applications

The 644 RTD Temperature Transmitter is widely applied across industries where accurate and reliable temperature measurement is critical. Typical applications include:

1. Oil & Gas – Monitoring process temperatures in pipelines, refineries, and offshore platforms.
2. Chemical & Petrochemical – Ensuring precise temperature control in reactors, distillation columns, and storage tanks.
3. Power Generation – Measuring boiler, turbine, and cooling system temperatures for safe and efficient operation.
4. Pharmaceutical & Biotechnology – Maintaining strict temperature control in production processes and cleanroom environments.
5. Food & Beverage – Monitoring cooking, pasteurization, and storage temperatures to ensure product quality and safety.
6. Water & Wastewater Treatment – Controlling process temperatures in treatment plants and distribution systems.
7. General Industrial Automation – Providing stable temperature signals for control systems in manufacturing and process plants.

Frequently Asked Questions (FAQ)

Q1: What is the 644 RTD Temperature Transmitter used for?

The 644 RTD Temperature Transmitter is designed to convert RTD sensor signals into accurate and stable 4–20 mA or digital outputs for process automation and industrial instrumentation. It ensures precise temperature monitoring and reliable integration with control systems.

Q2: What types of sensors are supported?

It supports multiple RTD types (such as Pt100 and Pt1000), thermocouples, resistance, and millivolt inputs, making it versatile for different applications.

Q3: What communication protocols are available?

The transmitter offers standard 4–20 mA with HART communication, and selected models also support FOUNDATION Fieldbus and Profibus PA.

Q4: What mounting options are available?

The 644 is available in head‑mounted, rail‑mounted, and field‑mounted configurations, allowing flexible installation in various environments.

Q5: How accurate is the 644 transmitter?

It provides high accuracy, typically ±0.1 °C or ±0.1% of span, ensuring stable and reliable measurements even in demanding conditions.

Q6: Does it include diagnostic functions?

Yes. The 644 features advanced diagnostics such as sensor drift detection, open/short circuit alerts, and sensor health monitoring to reduce downtime and maintenance costs.

Q7: In which industries is it commonly used?

It is widely applied in oil & gas, chemical, power generation, pharmaceuticals, food & beverage, and water treatment, where precise temperature control is critical.

Q8: How is the transmitter configured?

Configuration can be done via a handheld communicator, PC software, or local interface, making commissioning and adjustments straightforward.

Good Service

• Please send your RFQ to get the latest price.
• Fast Delivery: Items will be shipped within 3–5 working days after receiving payment.
• Flexible Shipping Options: We can ship via UPS / DHL / EMS / FedEx, or use your preferred carrier upon request.
• Large Stock & Competitive Pricing: With ample inventory and variable pricing, we can always offer you a good price. For specific quotations, please get in touch with us directly.