GE IS230SNRTH2A – Precision RTD Input Module for Turbine Control Systems

Application Overview

The GE IS230SNRTH2A module is an RTD (Resistance Temperature Detector) input board specifically designed for GE Mark VI and Mark VIe turbine control systems. This module accurately measures temperature signals from RTDs to ensure optimal control and protection in high-performance industrial and power generation environments. It delivers consistent accuracy, durability, and seamless integration with GE control platforms, making it a cornerstone component in advanced monitoring systems.

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Key Features

• High-Precision Temperature Measurement: Provides reliable input from multiple RTD sensors for accurate thermal management.

• Seamless Integration: Fully compatible with GE Mark VI / Mark VIe control systems.

• Isolated Inputs: Ensures electrical isolation to prevent signal interference or ground loops.

• Built-in Diagnostics: Monitors connection integrity, sensor health, and temperature range faults.

• Compact Design: Enables easy installation in space-constrained control panels.

• Long-Term Stability: Designed for extended operational life under demanding conditions.

  
  

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Technical Specifications

Specification	Details
Product Type	RTD Input Module
Model Number	IS230SNRTH2A
Manufacturer	General Electric (GE)
Input Type	RTD (Resistance Temperature Detector)
Number of Channels	10 isolated channels
RTD Types Supported	100 Ω Platinum, Nickel, and Copper RTDs
Measurement Range	-200°C to +850°C (depending on RTD type)
Input Isolation	Channel-to-channel and channel-to-ground isolation
Resolution	16-bit A/D conversion
Communication	Connects via terminal board (TRTDH1A / TRTDH2B, etc.)
Power Supply	28 V DC nominal
Mounting Type	DIN rail / module carrier
Operating Temperature	-30°C to +65°C
Storage Temperature	-40°C to +85°C
Dimensions (H×W×D)	150 × 100 × 30 mm (approx.)

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Structure & Composition

The IS230SNRTH2A is built with a multi-layer PCB design that incorporates precision analog-to-digital converters, isolation amplifiers, and communication interfaces. The module connects to a terminal board where the RTDs are wired, allowing signal conditioning and processing before transmission to the turbine control system. Its design minimizes electromagnetic interference and supports high accuracy across long cable runs.

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Installation & Maintenance

• Installation: Mount the module on a GE-approved carrier or DIN rail. Connect RTD sensors through the recommended terminal board using shielded cables to reduce noise.

• Wiring: Follow the polarity and channel configuration diagrams in the GE Mark VIe system manual.

• Calibration: Factory-calibrated, but periodic verification is recommended during system maintenance.

• Maintenance: Clean the connectors periodically, check wiring insulation, and inspect temperature sensor health. Firmware and system diagnostics can be accessed through the GE ToolboxST software suite.

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Advantages & Benefits

• Provides real-time temperature monitoring critical for turbine and compressor safety.

• Reduces signal noise and interference, ensuring stable process control.

• Designed for reliability in high-vibration and high-temperature industrial environments.

• Simplifies troubleshooting with built-in diagnostics and fault indication LEDs.

• Fully compatible with GE Mark VI control architecture, ensuring effortless replacement and upgrade.

  
  

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Typical Applications

• Gas and Steam Turbine Control Systems

• Industrial Process Temperature Monitoring

• Power Plant Instrumentation Panels

• Heavy Machinery Thermal Protection Systems

• Compressor and Generator Monitoring

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