General Electric DS3800NTCF1C1C
General Electric DS3800NTCF1C1C
General Electric DS3800NTCF1C1C
General Electric DS3800NTCF1C1C
General Electric DS3800NTCF1C1C
General Electric DS3800NTCF1C1C
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    Discontinued / Obsolete by OEM
    Apter Power supports Mark IV board verification, technical records, quotation, and sourcing.

DS3800NTCF1C1C

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GE DS3800NTCF1C1C is a Mark IV Speedtronic control board identified by its complete assembly code. It supports maintenance of the original turbine-control cabinet configuration.
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Technical specifications for DS3800NTCF1C1C

  • Manufacturer:
    General Electric
  • Part Number:
    DS3800NTCF1C1C
  • Product Family:
    GE Mark V/VI Driver Board
  • Product Type:
    Control Board
  • Stock:
    1
  • Weight:
    0.3 kg
  • Estimated shipping dimensions:
    19.2 x 1.7 x 23.4 cm
  • Tariff Code:
    8477900000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Firmware & Updates Configuration

Features:

  • 13 Thermocouple Input Channels – Supports 13 differential inputs with 12-bit resolution, enabling precise exhaust temperature measurement for turbine control
  • Designed for GE's TMR system, using multiple cards to provide fault-tolerant temperature regulation and prevent single-point failures
  • Features five jumpers, one resistor network, and four potentiometers acting as voltage dividers for flexible signal conditioning
The DS3800NTCF1C1C is engineered to interface directly with thermocouples installed in turbine exhaust paths, providing 13 input channels for comprehensive temperature monitoring. Each channel processes signals at 12-bit resolution, ensuring precise detection of temperature variations that are critical for combustion efficiency and turbine health. The card calculates the difference between the actual exhaust temperature and a pre-set reference setpoint, generating a command signal that the Mark IV system uses to manage fuel flow and exhaust temperature.

The DS3800NTCF1C1C is a core component of the Mark IV Speedtronic series, which was among the first control systems to implement Triple Modular Redundancy (TMR) for critical parameters. The Mark IV system uses thirteen of these cards simultaneously to maintain temperature control. This redundant architecture means that even if one DS3800NTCF1C1C card produces corrupted data, the system can rely on the remaining cards to provide accurate statistical input for control decisions.

The DS3800NTCF1C1C is built with extensive onboard circuitry to condition raw thermocouple signals into usable data for the Mark IV processor. It features five jumper switches that allow for hardware configuration, along with one resistor network and four potentiometers that function as voltage dividers to scale signals appropriately. The board contains eight circuits, including hex inverting gates and three-state output octal buffers/line drivers.

The DS3800NTCF1C1C GE Thermocouple Card may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

GE DS3800NTCF1C1C Thermocouple Card Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
GE DS3800NTCF1C1C Control Board Specs

General

  • ManufacturerGeneral Electric
  • ModelDS3800NTCF1C1C
  • ConditionNew Original ready stock
  • Product FamilyGE Mark IV Speedtronic

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Gas Turbine Exhaust Monitoring: Captures raw temperature values directly from the exhaust gas thermocouple arrays surrounding the combustion turbine frame. Accurate data processing here is critical for preventing "temperature spreads" that crack rotor blades.
  • Bearing and Stator Thermal Tracking: Tracks localized internal physical temperatures inside heavy-duty generator bearings, thrust pads, and motor stators.
  • Steam Turbine Controls: Monitors boiler steam feeds, extraction lines, and inlet valve casings within combined-cycle power block facilities.
  • EPROM-Based Hard Coding: The operational handling algorithms, calibration curves, and mathematical coefficients for thermocouple types (e.g., Type K) are burnt permanently onto socketed EPROM (Erasable Programmable Read-Only Memory) integrated chips on the processor boards, rather than on this conditioning board itself.
  • Hardware-Level Updates: Upgrades or adaptations for the DS3800NTCF1C1C are achieved solely through Hardware Revision Levels (denoted by the suffix string 1C1C). If a revision change is issued by GE, you must physically exchange the entire card assembly or move physical component components on the board.
  • Component Degradation: When managing this hardware, "updating" typically refers to physical maintenance, such as replacing dried-out electrolytic capacitors or re-seating analog chips that suffer from thermal aging over decades of service.
  • Hardware Jumper and Potentiometer Tuning: The board features onboard physical jumpers and adjustable potentiometers.
  • Software Mapping in the MK IV Database: To read the conditioned values, the card is mapped into the central Speedtronic Mark IV core parameters database via a legacy CRT interface or terminal loader (often running a specialized DOS environment like IDOS). Points are assigned to the TMR (Triple Modular Redundant) logic networks—labeled as Core \(\langle\text{R}\rangle\), \(\langle\text{S}\rangle\), and \(\langle\text{T}\rangle\)—to ensure voting logic can cross-verify temperature signals.
Description
GE DS3800NTCF1C1C is a printed circuit board used in legacy Mark IV Speedtronic turbine-control installations. Its complete assembly code identifies the board and revision required for maintenance of an installed cabinet.

Within the Mark IV hardware architecture, the board operates as part of the original rack and wiring arrangement. Connectors, jumpers, and surrounding cards must therefore be interpreted from the unit-specific drawings rather than from another DS3800 catalog number.

Replacement planning should compare the full printed code, physical connector layout, board revision, and cabinet location. Any migration or substitute decision must be checked against the plant control design before the board is removed or energized.
Alternative Names
DS3800NTCF1C1C DS3800 NTCF 1C1C DS3800-NTCF-1C1C GE DS3800NTCF1C1C GE Mark IV DS3800NTCF1C1C DS3800NTCF1C1C Board DS3800NTCF1C1C Control Board General Electric DS3800NTCF1C1C
Technical notes
DS3800NTCF1C1C must be matched by the complete assembly code and installed-panel drawings; isolate cabinet power before inspecting connectors, jumpers, or board revisions.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why must the complete DS3800NTCF1C1C code be checked before replacement?
The complete code distinguishes the board and revision required by the installed Mark IV panel; a shorter DS3800 family reference is not sufficient for interchangeability.
What installation record is most useful when identifying GE DS3800NTCF1C1C?
Use the cabinet drawing, board-location reference, connector designations, and a clear photograph of the full printed assembly code.
Can GE DS3800NTCF1C1C be selected from another DS3800 board number?
No. Other DS3800 numbers can represent different circuit functions or revisions and should not be treated as equivalent without an OEM-approved relationship.
Which system context applies to GE DS3800NTCF1C1C?
It belongs to the legacy GE Mark IV Speedtronic control platform and must be evaluated within the original panel configuration.
What should be isolated before handling DS3800NTCF1C1C?
De-energize the cabinet according to the site procedure, control electrostatic discharge, and verify that stored energy and connected circuits are safe.
What details should accompany a quotation request for DS3800NTCF1C1C?
Provide the complete code, required quantity, nameplate or board photographs, destination, and any revision or connector constraints shown by the installed panel.