GE IS220PTCCH1B

Product Overview

The GE IS220PTCCH1B is a thermocouple input I/O pack designed for the Mark VIe distributed control system. It provides an electrical interface between the I/O Ethernet network and a compatible thermocouple terminal board. The module acquires temperature signals from field sensors and transfers measurement data to the control system for monitoring and process control.

It is particularly suitable for turbine control applications, where accurate temperature measurements help operators monitor combustion conditions and protect critical equipment.

Technical Specifications

Parameter	Description
Manufacturer	General Electric (GE)
Model	IS220PTCCH1B
Product Type	Thermocouple Input I/O Pack
Product Series	Mark VIe
Input Capacity	Up to 12 thermocouple channels
Communication	IONet Ethernet
Network Connectors	Dual RJ45
Terminal Board Connection	DC-37 connector
Power Input	Nominal 28 V DC
Diagnostic Interface	LED indicators

The number of active channels and redundancy arrangement depend on the compatible terminal board and system configuration.

Key Features

• Multi-channel temperature acquisition: Collects signals from up to 12 thermocouple inputs in supported configurations.

• Cold-junction compensation: Supports accurate thermocouple measurement by accounting for the reference-junction temperature.

• Ethernet communication: Transfers temperature data through the Mark VIe I/O network.

• Dedicated acquisition circuitry: Processes low-level thermocouple signals for control-system use.

• Status diagnostics: LED indicators help technicians check module and network conditions.

Applications

Typical applications include gas turbine exhaust-temperature monitoring, steam turbine temperature measurement, industrial furnaces, and other processes that require multiple temperature inputs.

Installation and Maintenance

Install the module on a compatible thermocouple terminal board, such as the appropriate TBTCH configuration. Confirm sensor types, terminal-board compatibility, power connections, and network wiring before commissioning.