IS200TDBTH6ACD GE Mark VIe Steam Turbine Control Terminal Board Components
Product Description
The IS200TDBTH6ACD is a Terminal Board Assembly designed for GE’s Mark VIe Gas/Steam Turbine Control System. It interfaces thermocouple sensors with the turbine controller, providing signal conditioning and isolation for critical temperature monitoring.
Key Specifications
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Parameter
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Specification
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Part Number
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IS200TDBTH6ACD
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Series
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GE Mark VIe Speedtronic™ Turbine Control System
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Input Type
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Thermocouple (Type J, K, T, E, N, R, S, B supported)
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Channels
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8 isolated thermocouple input channels
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Isolation Voltage
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250V AC continuous (channel-to-channel & channel-to-ground)
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Accuracy
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±0.1% full scale (typical)
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Operating Temp.
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-40°C to +85°C (-40°F to +185°F)
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Compatibility
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Interfaces with IS200TBCIHx Control I/O Pack
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Certifications
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UL, CE, RoHS compliant; Designed for IEC 61000 EMC standards
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Revision
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“ACD” suffix denotes hardware revision & firmware compatibility
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Key Features
- High-Density Signal Conditioning
- Converts low-voltage thermocouple signals to isolated analog outputs for the controller.
- Cold Junction Compensation (CJC)
- Integrated temperature sensors ensure accurate thermocouple readings.
- EMI/RFI Protection
- Shielding and filtering against electromagnetic interference in harsh industrial environments.
- Hot-Swappable Design
- Supports online replacement without turbine shutdown (reduces downtime).
- Diagnostic LEDs
- Per-channel status indicators for fault detection (open circuit, out-of-range).
Functional Role
- Primary Function: Translates thermocouple temperature data into digital signals for the Mark VIe controller.
- Critical Safeguard: Enables real-time monitoring of exhaust gases, bearing temperatures, and combustion zones to prevent turbine damage.
Applications & Industries
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Industry
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Use Case
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Power Generation
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Gas/steam turbine temperature monitoring (combustors, blades, bearings).
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Oil & Gas
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Compressor stations, pump turbines, flare stack monitoring.
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Marine Propulsion
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Shipboard turbine control systems.
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Industrial Energy
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Combined-cycle plants, cogeneration facilities.
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Integration Notes
- Mounting: Installed in a Mark VIe I/O Pack Carrier (e.g., IC693CHSxxx series).
- Wiring: Uses shielded twisted-pair cables for noise immunity.
- Configuration: Calibrated via ToolboxST™ Software (GE’s engineering tool).
- Redundancy: Supports dual-redundant thermocouple inputs for critical measurements.
Precautions
⚠️ Obsolescence Alert: Part of legacy Mark VIe systems; verify compatibility with newer Mark VIeS controllers.
⚠️ ESD Sensitivity: Handle with anti-static precautions during installation.
⚠️ Radiation Note: Some variants (e.g., IS200TDBTH6ACD) are radiation-hardened for nuclear applications.
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