IS200VRTDH1DAB | General Electric | Mark VI RTD Input Board

Product Overview

The IS200VRTDH1DAB functions as a high-density Resistance Temperature Device (RTD) Input Board within the General Electric Mark VI Speedtronic control system. This 100% Brand New original component interfaces directly with field-mounted RTD sensors to monitor critical turbine temperatures, including bearing oil, stator windings, and exhaust gases. By integrating 16 independent channels, the VRTD board converts resistance changes into digital temperature data, enabling the Mark VI controller to execute precise thermal protection and governing logic.

Technical Specifications

The IS200VRTDH1DAB utilizes high-resolution conversion circuitry to maintain signal accuracy across various turbine operating states.

• Manufacturer: General Electric (GE)

• Part Number: IS200VRTDH1DAB

• Series: Mark VI

• Product Type: Resistance Temperature Device (RTD) Input Board

• Number of Channels: 16 Channels

• Voltage Span: 0.3532 to 4.054 V

• Common Mode Voltage Range: 5 V

• Maximum Lead Resistance: 15 Ohms (Max)

• Scan Rate (Fast Scan): 40 ms (25 Hz)

• Power Consumption: Less than 12 Watts

• Country of Manufacture: United States (USA)

Engineering Advantages

• High-Speed Thermal Acquisition: The board executes a fast scan cycle of 40 ms (25 Hz). This rapid sampling rate ensures the control system detects sudden thermal transients in real-time, preventing damage to critical turbine components during high-load or trip conditions.

• Extended Lead Resistance Tolerance: The circuitry compensates for up to 15 Ohms of lead resistance. This high tolerance solves the industrial challenge of signal degradation over long cable runs between the turbine deck and the control room, maintaining measurement integrity without requiring local transmitters.

• Robust Common Mode Rejection: A 5V common mode voltage range allows the board to filter out significant electrical noise. This feature protects the signal path from electromagnetic interference (EMI) typically generated by nearby large motors and high-voltage excitation systems.

• Efficient Power Management: The board draws less than 12 Watts during full-load operation. This low power footprint minimizes heat dissipation within the VME rack, extending the MTBF (Mean Time Between Failures) of adjacent control modules in high-density cabinet configurations.

FAQs

• Is this IS200VRTDH1DAB unit a brand new original?

  Yes. We supply this product as a 100% Brand New original GE unit. Each board remains in its factory-sealed anti-static packaging to ensure it meets the strict E-E-A-T performance standards for power generation assets.

• Does the board support different types of RTD sensors?

  The IS200VRTDH1DAB primarily supports standard platinum (100 Ohm) and other common RTD types used in GE Speedtronic systems. You must configure the specific RTD curves within the system's software to match your field-side instrumentation.

• How does the board handle a broken sensor wire?

  The VRTD board incorporates diagnostic circuitry that monitors for open-circuit or short-circuit conditions. If a sensor wire breaks or exceeds the 15-ohm lead resistance limit, the system triggers a diagnostic alarm to prevent the governor from using invalid temperature data.

• What is the significance of the "DAB" revision code?

  The "DAB" suffix indicates a specific hardware and firmware revision level. This revision ensures compatibility with the latest Mark VI VME backplane architectures and provides improved thermal stability over earlier "AAA" or "BAA" versions.