WOODWARD 8200-1100 RTD Input – 8 Channel

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I can provide information about the WOODWARD 8200-1100 RTD Input – 8 Channel module.

This module is designed for precise temperature measurement using Resistance Temperature Detectors (RTDs) and is part of Woodward’s RTCnet (Remote Terminal Control Network) series of distributed I/O modules.

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• WOODWARD 8200-1100: Distributed I/O Module for Temperature Monitoring.
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2. Product Overview:

The WOODWARD 8200-1100 is an 8-channel RTD Input Module designed to precisely measure temperature from Resistance Temperature Detectors (RTDs). It’s an integral part of Woodward’s RTCnet series, which provides a robust and distributed I/O solution for various industrial control applications, including power generation and industrial processes.

• Product Type: RTD Input Module
• Manufacturer: Woodward
• Series: RTCnet (Remote Terminal Control Network)
• Channels: 8 RTD Input Channels
• Function: Measures temperature from RTD sensors and transmits data over the RTCnet network to a compatible control system.

3. Detailed Product Description:

The WOODWARD 8200-1100 plays a crucial role in systems requiring accurate and reliable temperature monitoring from RTD sensors. RTDs are favored for their high accuracy, stability, and linearity across a wide temperature range.

Here’s a closer look at its features and functionality:

• 8 RTD Input Channels: The module provides eight independent channels, each capable of connecting to an RTD sensor. It’s typically compatible with common RTD types such as Pt100 and Pt1000 (Platinum, 100 or 1000 ohms at 0°C), and supports various wiring configurations (2-wire, 3-wire, or 4-wire). The 3-wire and 4-wire configurations are particularly important as they offer compensation for lead wire resistance, ensuring higher measurement accuracy.
• Temperature Measurement: The module accurately converts the resistance changes measured from the RTDs (which correlate directly to temperature) into digital signals. These digital temperature readings are then communicated to the central control system.
• RTCnet Communication: The “RTCnet” designation means this module communicates over Woodward’s RTCnet protocol. RTCnet is a robust, high-speed, and deterministic distributed I/O network that utilizes a CAN (Controller Area Network) physical layer. This allows the 8200-1100 and other RTCnet I/O modules to be positioned remotely from the main controller, often closer to the sensors and actuators. This distributed architecture reduces the amount of field wiring, minimizes electrical noise pickup over long runs, and simplifies system installation and troubleshooting.
• High Accuracy and Resolution: Designed for industrial control, the 8200-1100 provides high accuracy and resolution in its temperature measurements, which is essential for precise control loops, performance monitoring, and protective functions.
• Electrical Isolation: Like other industrial-grade I/O modules, the 8200-1100 typically incorporates electrical isolation for its inputs. This crucial feature protects the sensitive control electronics from electrical noise, voltage spikes, and ground loop issues originating in the field wiring, ensuring signal integrity and system reliability.
• Industrial Hardened Design: The module is built to withstand the rigors of industrial environments, including wide temperature variations, vibrations, and electromagnetic interference (EMI).

The temperature data acquired by the 8200-1100 is vital for the control system to:

• Maintain optimal operating temperatures for efficiency and process quality.
• Trigger alarms or protective shutdowns if temperatures exceed safe limits (e.g., bearing over-temperature, engine coolant temperature).
• Monitor equipment health and performance trends.

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

5. Typical Applications:

The WOODWARD 8200-1100 is widely used in critical industrial applications where precise and reliable temperature monitoring from RTDs is essential for control, protection, and performance optimization:

• Gas and Steam Turbines: Monitoring bearing temperatures, lube oil temperatures, casing temperatures, and other critical process temperatures within the turbine package.
• Engine Control: Monitoring engine block temperatures, coolant temperatures, and oil 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.