GE IS200VTCCH1CBB·Thermocouple Input Terminal Board·IS200VTCCH1CBB

Description

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Product Overview​

The GE IS200VTCCH1CBB​ is a high-precision thermocouple input terminal board designed for GE’s Mark VI turbine control system. This critical interface module specializes in acquiring and conditioning analog signals from thermocouples, supporting up to 24 channels for types E, J, K, S, and T, as well as millivolt inputs ranging from -8 mV to +45 mV . As part of the Mark VI platform, the IS200VTCCH1CBB​ ensures reliable temperature monitoring in gas/steam turbines by integrating cold-junction compensation and high-frequency noise suppression directly on the board . Its ruggedized design withstands industrial environments with operating temperatures from -20°C to 60°C, making it suitable for harsh applications like power generation and oil refineries .

The module features a dual-group architecture, allowing deployment in simplex (TBTCH1C terminal board) or triple modular redundancy (TMR) configurations (TBTCH1B terminal board) for fault-tolerant systems . Key functional elements include a Xilinx Spartan FPGA, dual-port SRAM, and diagnostic LEDs (Run/Fault/Status) for real-time health monitoring . By converting analog thermocouple signals to digital data for the Mark VI controller, the GE IS200VTCCH1CBB​ enables precise temperature tracking in critical assets such as combustors, bearings, and heat recovery systems, thereby enhancing predictive maintenance capabilities .

Technical Specifications​

Key Features and Advantages​

High-Density Thermocouple Interface: The IS200VTCCH1CBB​ consolidates up to 24 thermocouple inputs into a single slot, reducing wiring complexity and cabinet space. Each channel supports grounded/ungrounded sensors with a maximum distance of 984 feet from the turbine control cabinet, enabling flexible sensor placement .

Advanced Signal Conditioning: With built-in cold-junction compensation and noise filtering, the module ensures accurate temperature measurements even in electrically noisy environments. The 16-bit resolution provides fine granularity for detecting subtle temperature variations critical to turbine protection .

Diagnostic and Redundancy Capabilities: Three LED indicators (Run/Fault/Status) offer instant module health assessment, while compatibility with TMR configurations ensures continuous operation during failures. The design allows hot-swapping in redundant systems, minimizing downtime during maintenance .

Application Areas​

The GE IS200VTCCH1CBB​ is primarily deployed in energy and industrial sectors requiring precise temperature monitoring. In power generation, it monitors gas/steam turbine exhaust temperatures, bearing heats, and combustor conditions to prevent overheating damage . For oil and gas applications, the module tracks process temperatures in compressor stations and refinery heaters, integrating with Mark VI controllers for automated shutdowns during abnormal conditions .

Additionally, the board serves manufacturing facilities with high-temperature processes, such as metal smelting furnaces and chemical reactors. Its compatibility with GE’s System 1® software enables predictive maintenance through trend analysis and early fault detection .

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