GE DS3800HCMP

Technical Specifications

• Product Type: High-Current Multiplexer Processor Board

• Part Number: DS3800HCMP

• Manufacturer: General Electric (GE)

• System Compatibility: GE Speedtronic Mark IV Turbine Control Systems

• Input Channels: Up to 64 multiplexed analog inputs (expandable)

• Processor: 16-bit microcontroller (custom GE design)

• Data Resolution: 12-bit or 14-bit (jumper-selectable)

• Data Rate: Up to 1000 samples per second (aggregate)

• Communication Interface: Backplane (Mark IV proprietary)

• Data Formatting: Output to Mark IV processor in standard format

• Diagnostics: Channel fault detection (over-range, under-range, open-circuit) with LED indication

• Isolation: 1500Vrms opto-isolation (logic-to-backplane)

• Temperature Range: 0°C to +60°C

• MTBF: > 150,000 hours (MIL-HDBK-217F)

Key Features & Advantages

• Data Processing: The GE DS3800HCMP handles all data acquisition and formatting, offloading the main Mark IV processor.

• Flexible Resolution: Selectable 12-bit or 14-bit resolution for accuracy vs. speed tradeoff.

• High Data Rate: Supports up to 1000 samples per second aggregate.

• Diagnostic Capability: Detects over-range, under-range, and open-circuit conditions per channel.

• Diagnostic LEDs: Front-panel LEDs indicate channel status and fault conditions.

Typical Application Cases

• Multiplexer Systems: Processes data from multiplexer boards.

• Data Acquisition: Handles analog data formatting for Mark IV processor.

• Diagnostic Monitoring: Monitors channel health and reports faults.

Competitive Comparison

The GE DS3800HCMP is the only Mark IV board for data processing of multiplexed analog inputs.

Selection Guidelines & Precautions

1. Resolution Selection: Configure for 12-bit (speed) or 14-bit (accuracy) depending on application.

2. Data Rate: Ensure aggregate data rate does not exceed 1000 samples per second.

3. Channel Configuration: Verify channel mapping and scaling.

4. ESD Handling: Use ESD-safe practices.

5. Sourcing: Obsolete. Request functional test report including all channels tested.

6. Spare Strategy: Keep one spare GE DS3800HCMP on-site for critical multiplexer systems.

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