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GE DS3800NTCF1A1A
- Product Name: GE Speedtronic™ Mark V (IS200 TBCI) I/O Termination Board
- Product Description: Primary field wiring interface termination board for turbine control signals within GE Mark V Speedtronic cabinets. Provides termination and conditioning for analog transducers (thermocouples, RTDs, pressure transmitters), magnetic speed pickups, and discrete I/O from valve limit switches, solenoids, and protection relays.
Detailed content
- Technical Specifications:
- Analog Inputs: 16 channels, configurable for TC, RTD, mA, mV, or V
- Analog Accuracy: ±0.1% of span at 25°C (±0.2% over full temperature range)
- Digital Inputs: 8 channels, 24 VDC, opto-isolated
- Digital Outputs: 8 channels, 24 VDC, 0.5 A per point (field powered)
- Speed Sensor Inputs: 2 channels, magnetic pick-up (20 Hz – 10 kHz)
- Field Power Input: 24 VDC nominal (18–32 VDC range), 2 A max
- Cold-Junction Compensation: Integral, ±0.5°C accuracy
- Channel-to-Logic Isolation: 500 V DC
- Operating Temperature: -40 °C to +70 °C
- Termination Style: Removable screw terminal blocks, 12–22 AWG
- Backplane Connector: 96-pin DIN 41612
- Configuration Code: 1A1A (full factory build configuration)
- Structural Features: Modular removable terminal blocks allow board replacement without disturbing field wiring. Maintains full interchangeability with all IS200 TBCI hardware revisions, preserving existing cable routing, conduit layouts, and cabinet cutouts.
- Working Principle: Per-channel overvoltage protection, integrated cold-junction compensation for thermocouple accuracy, and 500 VDC isolation between field signals and the Mark V logic backplane.
- Application Scenarios: Legacy GE Mark V turbine control systems (gas and steam turbines).
- Lifecycle Status: Discontinued by OEM; available as new surplus or remanufactured through secondary market channels.
