SPECIFICATIONS
Part No.: DS3800NVOC
Manufacturer: General Electric
Series: Mark IV
Product type: Circuit Board
Repair: 3-5 Days
Availability: In Stock
Country of Manufacture: United States (USA)
Functional Description
DS3800NVOC is a circuit board developed by GE. It is a part of Mark IV control system. The GE Speedtronic Mark IV Gas Turbine Control System remains a dependable solution, even though the series has reached obsolescence. This series provides a robust and reliable control system that is exceptionally well-suited for its intended applications.
System Testing
- Component Testing: In the first phase, individual integrated circuits (ICs) are subjected to comprehensive testing. This includes three critical screens: temperature cycling, hermetic seal testing, and burn-in testing. During temperature cycling, the ICs are exposed to varying temperatures to evaluate their ability to withstand fluctuations. This test helps identify any potential weaknesses in material integrity or performance. The hermetic seal testing consists of both fine and gross leakage tests to ensure that the seal of each IC is intact. This is crucial for maintaining the integrity of the components, especially in environments where exposure to contaminants could affect performance. Additionally, during the burn-in testing, the ICs are operated under electrical power for an extended period to detect early failures. Following these screenings, a 100% electrical parameter test is conducted to verify that each IC meets the specified electrical standards.
- Card Testing: The next phase involves testing the printed wire boards (cards). Each card undergoes a rigorous burn-in process, where they are heated to 155°F (approximately 68°C) and powered for 160 hours. This extended operation simulates real-world conditions and ensures that any latent defects are exposed early in the production process. After the burn-in period, each card is subjected to an in-circuit test to check for continuity and correct functioning of individual components while still in the circuit. Following this, a functional test is performed to evaluate that each card performs its intended functions correctly within the overall system. If any special calibration is necessary, it is performed separately after these initial tests. The in-circuit and functional tests are currently conducted using a General Radio GR2270 tester, which is fully programmed to ensure a high degree of consistency and accuracy in testing results.
- Module Testing: The testing phase for modules includes a variety of inspections and tests. This phase involves visual inspections on simple back-planes to check for any obvious defects. Additionally, automatic wiring scans are conducted on wired back-planes and cables to ensure proper connections and functionality. A critical aspect of this phase is the full functional testing of power supplies, ensuring that all power supply units within the module operate correctly under actual conditions.
- Total Hardware Configuration Testing: The final phase of testing focuses on the overall system functionality. This includes functional testing of the complete hardware configuration, where the entire setup, including the C communicator and RST controller modules, undergoes thorough examination. This comprehensive testing ensures that all components work together seamlessly and meet the overall system performance criteria.
World of Controls has the most comprehensive collection of GE Mark IV components. Please contact WOC as soon as possible if you require any extra information.
Frequently Asked Questions
What is DS3800NVOC?
It is a circuit board developed by GE.
What equipment is used for in-circuit and functional testing of cards?
The in-circuit and functional tests are performed using a General Radio GR2270 tester, which is fully programmed for consistent and accurate testing results.
What does module testing involve?
Module testing includes visual inspections of simple back-planes, automatic wiring scans on wired back-planes and cables, and full functional testing of power supplies to ensure they operate correctly under real-world conditions.
How is the total hardware configuration tested?
The total hardware configuration testing involves functional testing of the complete setup, including the C communicator and RST controller modules. This phase ensures that all components work together seamlessly.
