WOODWARD 8200-1200 RTD Input – 8 Channel

الوصف

The WOODWARD 8200-1200 is an 8-Channel RTD Input Module. This means it’s specifically designed to read temperature measurements from Resistance Temperature Detectors (RTDs), which are common and highly accurate temperature sensors used in industrial applications.

It’s part of Woodward’s LinkNet-HT (High-Temperature) series of distributed I/O modules.

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2. Product Overview:

The WOODWARD 8200-1200 is an RTD Input Module that provides eight dedicated channels for connecting Resistance Temperature Detectors. It’s a key component for extending the temperature monitoring capabilities of Woodward’s control systems, such as the 505XT, by integrating precise temperature data from various points in a process or machine.

• Product Type: RTD Input Module
• Manufacturer: Woodward
• Series: LinkNet-HT (High-Temperature)
• Channels: 8 RTD Input Channels
• Function: Measures temperature from RTD sensors and transmits data to the control system.

3. Detailed Product Description:

The WOODWARD 8200-1200 is a specialized input module designed for accurate and reliable temperature measurement using RTD sensors. RTDs are known for their linearity, stability, and precision in temperature sensing, making them ideal for critical industrial applications.

Here’s a breakdown of its features and role:

• 8 RTD Input Channels: The module can connect to eight individual RTD sensors. These sensors are typically 2-wire, 3-wire, or 4-wire configurations, with 3-wire and 4-wire being preferred for accuracy as they compensate for lead wire resistance. Common RTD types include Pt100 and Pt1000 (Platinum, 100 or 1000 ohms at 0°C), which the module is designed to read.
• Temperature Measurement: The module converts the resistance changes of the RTD sensors (which vary with temperature) into digital values that the main control system can process. This allows for precise temperature monitoring of critical points within a machine or process.
• LinkNet-HT Compatibility: The “LinkNet-HT” designation signifies that this module communicates over Woodward’s LinkNet-HT communication protocol. LinkNet-HT is a robust, distributed I/O network designed for industrial environments, allowing I/O modules like the 8200-1200 to be located closer to the sensors and actuators, reducing wiring complexity and potential for noise.
• High Accuracy: RTD inputs are inherently precise, and the 8200-1200 is built to maintain this accuracy, providing reliable temperature data essential for control and protection.
• Industrial Design: As with all Woodward industrial products, the 8200-1200 is designed to operate reliably in harsh industrial environments, offering features such as robust construction and resistance to electrical noise.
• Integration with Control Systems: This module expands the I/O capabilities of compatible Woodward controllers (like the 505XT) by providing additional temperature monitoring points. The temperature data can then be used by the control system for:
  • Process Control: Maintaining optimal operating temperatures for efficiency and product quality.
  • Protective Functions: Triggering alarms or shutdowns if temperatures exceed safe limits (e.g., bearing over-temperature, exhaust gas over-temperature).
  • Performance Monitoring: Tracking thermal performance of equipment.

The 8200-1200 specifically handles RTD inputs, distinguishing it from thermocouple input modules (like the 8200-1201 or 8200-1101), which are designed for a different type of temperature sensor.

4. Technical Specifications (General, as precise details can vary slightly by manual version):

5. Typical Applications:

The WOODWARD 8200-1200 is commonly used in applications where precise and reliable temperature monitoring from RTDs is critical for the operation and protection of machinery:

• Gas and Steam Turbines: Monitoring bearing temperatures, exhaust gas temperatures (though TCs are often used here as well), casing temperatures, and other critical process temperatures within the turbine package.
• Engine Control: Monitoring engine block temperatures, oil temperatures, and coolant temperatures.
• Compressor Stations: Monitoring temperatures of compressor stages, bearings, and associated process streams.
• Industrial Furnaces and Ovens: Precise temperature control and monitoring for industrial heating processes.
• Chemical and Petrochemical Plants: Monitoring process temperatures for reactors, heat exchangers, and distillation columns.