Description
1. Product Title
GE IS200DTAIH1ACC – Mark VI Simplex Analog Input Termination Board
2. Product Overview
The IS200DTAIH1ACC is a Simplex Analog Input Termination Board designed for the General Electric Mark VI Speedtronic turbine control system. This module serves as the primary physical interface for field wiring, receiving analog signals from various sensors—such as pressure transmitters, temperature transducers, and flow meters—and routing them to the internal I/O processors.
As a “Simplex” board, the IS200DTAIH1ACC is optimized for applications where standard reliability is required without the footprint of full triple modular redundancy. It features high-quality terminal blocks and onboard passive filtering to protect the integrity of 4-20 mA or voltage signals against the harsh electromagnetic environment of a power plant. By consolidating field connections into a structured layout, it simplifies commissioning and ensures accurate data acquisition for the turbine’s governing and protection logic.
3. Technical Specifications
- Brand: General Electric (GE)
- Model: IS200DTAIH1ACC
- Warranty: One Year
- Condition: 100% New & Original
- Input Channels: 10 Differential Analog Inputs
- Signal Range: 4-20 mA (current loop) or ±10 V (voltage)
- Excitation Voltage: Provides 24 V DC power for field transmitters
- Connection Type: Two-tier barrier terminal blocks
- Protection: MOV (Metal Oxide Varistor) surge protection and current limiting
- Compatibility: GE Mark VI Control Series
- Operating Temp: -30°C to +65°C (-22°F to +149°F)
4. Key Features & Benefits
- High-Density Signal Management: The IS200DTAIH1ACC supports up to 10 analog inputs on a single board, maximizing cabinet space efficiency.
- Onboard Transmitter Power: Includes dedicated circuits to power 2-wire field transmitters, eliminating the need for external loop power supplies.
- Passive Signal Conditioning: Equipped with resistors and capacitors that provide high-frequency noise filtering, ensuring the I/O processor receives a stable, “clean” signal.
- Reliable Field Termination: Features robust, industrial-grade screw terminals that provide secure mechanical and electrical connections for field cables ranging from 12 to 22 AWG.
5. Application Scenarios
- Gas Turbine Instrumentation: Used to collect pressure and temperature data from the turbine’s inlet and exhaust stages for fuel-to-air ratio calculations.
- Balance of Plant (BOP) Control: Deployed in auxiliary systems to monitor tank levels, lubricating oil pressures, and cooling water flow rates.
- Industrial Process Control: Integrated into GE-based control architectures for chemical or heavy manufacturing plants where precision analog monitoring is critical for safety and efficiency.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the IS200DTAIH1ACC ?
- A: It is a termination board that provides the physical connection points for analog field sensors and routes those signals to the Mark VI I/O processor.
- Q: Does the IS200DTAIH1ACC support redundant configurations?
- A: This specific “DTAI” model is a Simplex board. For TMR (Triple Modular Redundant) applications, a “TTAI” or “VTAI” version is typically used.
- Q: Can this board provide power to my field transmitters?
- A: Yes, the IS200DTAIH1ACC is designed to provide 24 V DC excitation for standard 4-20 mA loop-powered devices.
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