Product Overview

The General Electric IS220PRTDH1AD is a high-performance Resistance Temperature Device (RTD) input pack designed for the Mark VIe and EX2100e control platforms. This module functions as a specialized bridge between field-mounted RTD sensors and the IONet redundant Ethernet network. It digitizes thermal signals from a variety of resistance-based sensors, providing high-resolution temperature data essential for turbine control, bearing monitoring, and process thermal management.

The IS220PRTDH1AD is engineered to mount directly onto a compatible terminal board, such as the TRTD series. It contains a localized processor, an acquisition board, and a dual-Ethernet interface, allowing for distributed I/O architectures that reduce field wiring complexity while enhancing signal integrity through digital transmission.

Technical Specifications

• Manufacturer: General Electric (GE)

• Model Number: IS220PRTDH1AD

• Product Series: Mark VIe / EX2100e

• Module Type: RTD Input Pack

• Input Channels: Supports up to 8 RTD inputs (depending on terminal board)

• RTD Types Supported: 10Ω Copper, 100Ω Platinum (385/391), 120Ω Nickel, 200Ω Platinum

• Communication: Dual 100 Mbps Ethernet (IONet)

• Input Range: 0 to 500 ohms

• A/D Conversion: 16-bit Resolution

• Operating Temperature: -30°C to +65°C (-22°F to +149°F)

• Power Input: 28 VDC (nominal)

• Weight: 0.36 kg

• Dimentions:13x8.2x6 cm

Critical Performance Features

• High-Accuracy Digitization: Utilizes a 16-bit analog-to-digital converter to ensure precise thermal tracking with a high degree of repeatability, critical for protecting expensive rotating assets.

• Dual IONet Redundancy: Equipped with two 100Base-TX Ethernet ports to support fully redundant network architectures, ensuring that a single cable or switch failure does not result in a loss of critical temperature data.

• In-System Diagnostics: Performs continuous hardware self-tests, including limit checking, calibration verification, and sensor open/short circuit detection. Faults are reported instantly to the controller for rapid troubleshooting.

• Environmental Hardening: Designed for deployment in demanding industrial environments, featuring a rugged enclosure and components rated for wide temperature swings and high electromagnetic interference (EMI).

• Simplified Configuration: The module supports software-based configuration via GE’s ControlST toolbox, allowing for easy selection of RTD types and scan rates without the need for physical jumpers.

Primary Industrial Applications

The IS220PRTDH1AD is an integral component in heavy-duty gas and steam turbine control systems, commonly utilized for:

• Generator Stator Winding Temperature Monitoring

• Turbine Bearing Metal and Lube Oil Temperature Tracking

• Exhaust Gas Temperature (EGT) Acquisition

• Transformer and Motor Winding Protection