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Description
Product Overview
The GE IS220PTCCH2A is a high-precision Thermocouple Input Terminal Board designed for gas turbine control systems within GE’s Speedtronic™ Mark VIe platform. This module serves as a critical interface between thermocouple sensors and the turbine control unit, ensuring accurate temperature monitoring for combustion turbines and auxiliary systems. The GE IS220PTCCH2A supports up to 16 thermocouple inputs with built-in cold junction compensation, enabling real-time data acquisition for critical parameters like exhaust gas temperature (EGT) and bearing thermal profiles. Its galvanic isolation (500V AC) protects sensitive control systems from ground loops and electrical noise, while compliance with IEC 61508 SIL 2 ensures reliability in safety-critical applications. Compatible with Type J, K, T, and E thermocouples, this terminal board integrates seamlessly with Mark VIe controllers to optimize turbine efficiency and prevent overheating incidents.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IS220PTCCH2A |
| Manufacturer | GE (General Electric) |
| Product Type | Thermocouple Input Terminal Board |
| Input Channels | 16 (Differential) |
| Thermocouple Types | J, K, T, E, N, R, S |
| Accuracy | ±0.1% FSR @ 25°C |
| Isolation Voltage | 500V AC (Channel-to-Backplane) |
| Update Rate | 10 Samples/Second per Channel |
| Power Supply | 24VDC ±10% (Redundant Inputs) |
| Operating Temperature | -40°C to +70°C |
| Certifications | IEC 61508 SIL 2, CE, ATEX Zone 2 |
| Communication Protocol | IEC 61850 (Via Mark VIe Controller) |
| Dimensions | 200×150×35 mm |
| MTBF | 350,000 Hours |
IS220PTCCH2A
Key Features
High-Fidelity Signal Conditioning
The GE IS220PTCCH2A features 24-bit ADC resolution and programmable low-pass filtering, reducing noise in high-vibration environments like turbine halls. Automatic sensor break detection alerts operators to open thermocouple circuits.
Redundant Architecture
Dual power inputs and fault-tolerant design ensure continuous operation during grid transients or power supply failures. Hot-swappable modules allow maintenance without turbine shutdown.
Diagnostic Capabilities
Embedded self-test routines validate board health during startup, while non-volatile memory stores calibration data and event logs for post-incident analysis.
Cybersecurity Compliance
Supports GE’s CyberSentry™ protocols with firmware signature verification and role-based access control via Mark VIe HMIs.
Applications
- Power Generation: Exhaust gas temperature monitoring in combined-cycle gas turbines.
- Oil & Gas: Wellhead compressor temperature control in offshore platforms.
- Aerospace: Test cell instrumentation for jet engine performance validation.
- Steel Manufacturing: Reheating furnace temperature profiling.
- Cogeneration Plants: Bearing temperature surveillance in steam turbines.
The module’s ATEX Zone 2 certification enables deployment in hazardous environments with flammable gases.
Related Products
- GE IS215ACLEH1A: Analog control processor for Mark VIe systems.
- IS220PDIAH1A: Digital input module for turbine valve feedback signals.
- DS200TCEAG1ADC: Turbine control excitation board.
- IS230SNCIH2A: Sensorless speed monitoring module.
- IC693ALG390: Redundant power supply unit for Mark VIe racks.
Product Assurance
GE provides a 10-year lifecycle support commitment for the IS220PTCCH2A, including:
- Factory-Calibrated Modules: NIST-traceable calibration certificates included.
- 24/7 Global Support: Access to GE’s MySupport™ portal for firmware updates.
- Environmental Compliance: RoHS 3 and REACH compliant.
- Retrofit Kits: Migration packages for upgrading legacy Mark V systems.
- Onsite Training: Certified technicians for installation and troubleshooting.
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