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GE IS200VRTDH1DAA Mark VI RTD Input Board

The GE IS200VRTDH1DAA, also cataloged as the IS200VRTDH1DAA RTD Input Board, operates as a dedicated temperature acquisition hardware component for RTD signal conversion within the GE Mark VI VME control platform. It accepts 16 three-wire RTD inputs, performs 14-bit analog-to-digital conversion, and transfers temperature data through the VME backplane for turbine control monitoring.

Hardware Specifications

Parameter	Specification
Model	IS200VRTDH1DAA
Brand	GE
Product Type	RTD Input Board
System Platform	Mark VI Speedtronic VME Control System
Inputs	16 three-wire RTD channels
Sensor Type	Platinum RTD sensors, including Pt100
Excitation Current	10 mA DC multiplexed
A/D Resolution	14-bit
Mounting	VME rack with front-panel screws
Indicators	3 LED status indicators
Isolation	Channel-to-earth isolation
Operating Temp	-30 to +65 deg C
Storage Temp	-40 to +85 deg C
Humidity	5% to 95% non-condensing

RTD Signal Processing and VME Interface Characteristics

The IS200VRTDH1DAA provides RTD measurement acquisition through multiplexed excitation and digital conversion circuitry. The board processes resistance variations from platinum RTD elements and outputs digitized temperature values through the Mark VI VME backplane communication path.

The board supports simplex and TMR (Triple Modular Redundancy) configurations within Mark VI architectures. Firmware revision compatibility must be verified when replacing boards, as the D-rated revision and A-rated revisions have defined backward compatibility limitations.

The hardware design includes conformal coating, EMI shielding, and vibration resistance features for turbine control cabinet installation. LED indicators provide local status information for board health monitoring.

Firmware and Industrial Control Compatibility

The GE Mark VI platform uses deterministic VME backplane communication for controller-to-I/O data exchange. The IS200VRTDH1DAA integrates with the Speedtronic control architecture through configured I/O addressing and board-level firmware functions.

The board supports industrial control requirements including I/O density scaling within VME racks and compatibility verification across Mark VI hardware revisions. Proper firmware matching is required when integrating replacement modules into existing controller configurations.

Frequently Asked Questions

Q: How many RTD input channels are available on the IS200VRTDH1DAA?
A: The board provides 16 three-wire RTD input channels for temperature signal acquisition.

Q: What type of RTD sensors can be connected to this board?
A: The module is designed for platinum RTD sensors, including Pt100 type sensors, with multiplexed 10 mA DC excitation.

Q: Can the board operate in redundant configurations?
A: The IS200VRTDH1DAA supports simplex and TMR configurations within GE Mark VI control architectures.

Field Installation Guidelines

Install the IS200VRTDH1DAA in the designated GE Mark VI VME rack location using the front-panel mounting hardware. Verify that RTD wiring is correctly terminated at the associated terminal boards before connecting field cables.

Use shielded instrumentation wiring for RTD signal connections where required by site electrical standards. Maintain separation between low-level RTD signal cables and high-current power conductors to reduce electromagnetic interference.

Confirm controller configuration, board revision compatibility, and I/O addressing before commissioning. Ensure grounding paths follow the cabinet design requirements for channel-to-earth isolation performance.

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