IS200STTCH2ABA by GE | Thermocouple Terminal Module for Mark VIe

GE IS200STTCH2ABA (IS230SNTCH4A) – Simplex Thermocouple Input Terminal Board

Product Overview

The GE IS200STTCH2ABA is a Simplex Thermocouple Input Terminal Board designed for integration with the Mark VIe turbine control system. This module provides a direct interface for up to 12 thermocouple inputs, enabling precise measurement of turbine and process temperatures.

It supports thermocouple types E, J, K, S, and T, with a voltage range of –8 mV to +45 mV. With built-in cold junction compensation and signal conditioning, the IS200STTCH2ABA delivers highly accurate and stable readings, even under changing environmental conditions.

The board connects directly to the IS230SNTCH4A I/O pack, which digitizes conditioned signals for high-speed Ethernet communication over IONet. Additionally, an onboard identification chip ensures seamless system recognition and diagnostic validation within the Mark VIe platform.

Functional Role

The IS200STTCH2ABA is essential for temperature acquisition in gas and steam turbines. It provides reliable thermal data for exhaust gas monitoring, bearing protection, and combustion control. By operating in a simplex configuration, the module balances simplicity with dependable performance, making it a practical solution for many turbine applications.

Key Features

• 12 thermocouple input channels with wide voltage range support.

• On-board cold junction compensation for each channel.

• Integrated signal amplification and linearization for accuracy.

• High-density Euro-block screw terminals for secure wiring.

• Identification chip for module recognition and diagnostics.

• Compact size suitable for DIN rail or panel mounting.

Technical Specifications