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Phone: +86 16626708626Description
Key Technical Specifications
- Part Number: DS3800NOWA1K1K
- Brand: GE
- Platform: Mark IV Speedtronic turbine control system
- Product Type: Regulator card / PCB
- Application: Gas and steam turbine control
- Category: PLCs / machine control
- Weight: 1.00 lb
- Source Listing Weight: About 580 g to 950 g depending on seller listing
- Status: Obsolete / replacement part market
- Compatibility Note: Verify exact rack and revision before ordering
Product Introduction
GE DS3800NOWA1K1K is a Mark IV regulator card used in GE Speedtronic turbine control systems. It serves as a replacement PCB for legacy gas and steam turbine control cabinets. This part number is obsolete, so buyers usually source it for repair, retrofit, or spare inventory support.
Its value is in keeping older turbine controls running without a full system migration. Match the exact board revision, rack position, and wiring before installation, because Mark IV replacements can look similar while still failing at the connector or firmware level.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Board dead, no status indication | No rack power, blown fuse, backplane issue | ❌ Low | Measure supply voltage at the rack, then check adjacent cards | Check power path before replacing the card |
| Turbine control fault after swap | Wrong revision, mismatch with existing Mark IV logic | ✅ High | Compare part number, revision, and rack slot with the removed board | Use exact match or verify cross-reference first |
| Intermittent trip or unstable control | Poor connector seating, bent pins, oxidation | ✅ High | Inspect edge connector and reseat with power off | Clean contacts and confirm mechanical fit |
| Card runs but no command response | Communication or interface mismatch | ✅ High | Check diagnostic LEDs and verify loopback or rack signal path | Confirm the board is in the correct slot and wired correctly |
| Overheating or abnormal current draw | Internal component failure or rack power issue | ✅ Medium | Measure input current and compare with sibling cards | Test in a known-good rack before condemning the board |
| System fault appears only after startup | Configuration or jumper mismatch | ✅ High | Photograph original board settings and compare jumpers or links | Mirror the original configuration exactly |
Contact technical support with photos of the front and rear of the card, rack slot details, and any diagnostic logs if the fault does not clear.
- DS3800NOWA1K1K
Frequently Asked Questions
Q: Is DS3800NOWA1K1K still in production?
A: No. This is an obsolete GE Mark IV part, and current supply usually comes from surplus or refurbished stock.
Q: Can I use this as a direct replacement for any DS3800NOWA board?
A: Not automatically. The DS3800 series includes closely related boards, but you need an exact part-number match and a confirmed rack/application match. A close-looking board can still fail in the wrong slot.
Q: What condition is this part usually sold in?
A: In the secondary market, it is usually sold as new surplus, tested surplus, or refurbished. Exact condition depends on the seller, so ask for test status, photos, and traceability records before buying.
Q: Will this retain my turbine program or configuration?
A: Not by itself. On legacy Mark IV systems, the board must match the existing configuration, and you should document jumpers, wiring, and slot placement before removal. Do not assume a plug-in swap will be invisible to the controller.
Q: Is this board hot-swappable?
A: No. Treat it as a power-off replacement unless the OEM documentation for your exact cabinet says otherwise. Pulling it live can damage the backplane or the card.
Q: Why is the price lower than a factory part?
A: Because factory production is typically gone for obsolete Mark IV hardware, so the market relies on surplus inventory, recovered units, or repaired stock. Lower price usually reflects condition, availability, and testing depth, not a different model.
Q: What should I verify before installing it?
A: Check the exact part number, board revision, rack location, connector condition, and any jumper or link settings from the removed unit. Also confirm the rack power is within spec before powering up.
