GE DS200CTBAG1ADD

The GE DS200CTBAG1ADD is a Current Termination Board belonging to General Electric (GE)’s Mark VIe Speedtronic™ series, specifically designed for control systems of large rotating machinery such as gas turbines and steam turbines. Serving as a hub for current signals (4-20mA/0-20mA), this module connects field transmitters (e.g., pressure, flow, and temperature transmitters) to the I/O modules of the Mark VIe system, providing reliable signal conditioning, isolation, and distribution functions.

Product Parameters

• Product Model: DS200CTBAG1ADD
• Manufacturer: General Electric (GE)
• Product Type: Current Termination Board
• Compatible System: GE Mark VIe turbine control platform
• Input Signal Type: 4-20mA, 0-20mA (two-wire/four-wire transmitters)
• Number of Channels: 16 channels (typical configuration)
• Signal Isolation: Isolation between channels (500V AC)
• Accuracy: ±0.1% FS (full scale)
• Load Impedance: ≤250Ω (per channel)
• Connector Type: Screw terminal block (detachable)
• Operating Temperature Range: -30°C to +70°C (-22°F to +158°F)
• Protection Rating: IP20 (must be installed in a control cabinet)
• Mounting Method: DIN rail or direct fixation to Mark VIe rack
• Supporting Module: Works in conjunction with IS200STAIH2A (analog input module)

Structure and Composition

• Terminal Block Array:
  High-density screw terminals supporting wiring for two-wire/four-wire transmitters, with each terminal group labeled with a channel number.
• Signal Conditioning Circuit:
  • Precision sampling resistors: Convert 4-20mA current signals to voltage signals (e.g., 1-5V).
  • Isolation amplifiers: Optocoupler or magnetic isolation technology to block ground loop interference.
• Backplane Interface:
  Connects to the Mark VIe rack backplane via a custom connector, transmitting signals to I/O modules.
• Status Indicators:
  Power and channel status LEDs for quick diagnosis of signal abnormalities.
• Metal Enclosure:
  Aluminum alloy material providing EMI shielding and heat dissipation.

Main Features and Advantages

1. High-precision current signal processing:
   • ±0.1% FS accuracy ensures accurate collection of critical parameters such as pressure and flow.
   • 500V AC channel isolation effectively suppresses common-mode noise and on-site interference.
2. Flexible configuration and easy maintenance:
   • Supports hot-swapping (when allowed by the system) without the need to recalibrate transmitters.
   • Detachable terminal blocks simplify wiring and troubleshooting.
3. Seamless Mark VIe integration:
   • Natively compatible with GE IS200/IS215 series I/O modules (e.g., IS200STAIH2A).
   • Automatically identifies terminal board configurations via ToolboxST software.
4. Industrial-grade durability:
   • Complies with IEC 60068 vibration/shock standards, suitable for harsh environments such as power plants and offshore platforms.

Application Fields

• Power Generation Industry:
  • Signal interface for gas turbine fuel flow transmitters.
  • Lubricating oil pressure monitoring for steam turbines.
• Oil and Gas Industry:
  • Signal distribution for pressure transmitters at compressor station outlets.
• Water Treatment:
  • Signal integration for differential pressure transmitters at pump inlets and outlets.

Typical Application Case

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