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Phone: +86 16626708626Description
Key Technical Specifications
- Model: IS200VTCCH1CBA
- Brand: General Electric
- Series: Mark VI Speedtronic
- Module Type: Thermocouple input processor board
- Input Channels: 24 thermocouple inputs
- Thermocouple Types: E, J, K, S, and T
- Terminal Blocks: 2 terminal blocks on the TBTC interface
- Application: Turbine temperature monitoring
- System Role: VME-based Mark VI control hardware
- Condition: New Surplus or Refurbished, depending on stock
Product Introduction
GE IS200VTCCH1CBA is a Mark VI thermocouple input processor board used for turbine temperature monitoring. It accepts 24 thermocouple inputs and interfaces through the TBTC terminal arrangement in GE Speedtronic control systems.
Buyers usually replace it when a channel drops out, temperature reads drift, or the original board fails outright. The main buying risk is suffix mismatch, so confirm the full IS200VTCCH1CBA marking before installation.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| One or more temperature channels read open circuit | Thermocouple wiring fault | ✅ High | Measure continuity at the terminal block and compare to the field device | Check the sensor and wiring first |
| All channels read wrong temperature | Reference junction or board mismatch | ✅ High | Compare the installed board suffix and inspect the cabinet wiring | Verify the exact board revision and wiring scheme |
| Intermittent temperature spikes | Loose terminal or noisy sensor lead | ✅ High | Tug-test the terminals and check shielding with a meter | Reseat wiring and inspect cable routing |
| No channel updates in the controller | Cable or rack communication issue | ✅ High | Verify the VME interface cable and controller status LEDs | Check the rack and cable before ordering a replacement |
| One zone fails after warm-up | Aging electronics or heat-related drift | ✅ Medium | Run the cabinet under load and watch for repeatable drift | Replace if the fault follows the board |
| Multiple boards fault at once | Power supply or system problem | ❌ Low | Check cabinet supply rails and adjacent modules first | Do not assume this board is the root cause |
If you are stuck, send technical support clear photos of the board, the suffix marking, and the cabinet diagnostics.
- IS200VTCCH1CBA
Frequently Asked Questions
Q: What is the IS200VTCCH1CBA used for?
A: It is a GE Mark VI thermocouple input board for turbine temperature monitoring. It handles 24 thermocouple channels through the Speedtronic control system.
Q: Which thermocouple types does it accept?
A: The board supports E, J, K, S, and T thermocouples. Always confirm your site wiring and calibration setup before installing it.
Q: Is this part still in production?
A: No, it is a legacy Mark VI part. Most available stock is surplus or refurbished.
Q: Can I swap it with an IS200VTCCH1C or another suffix?
A: Not blindly. The suffix matters, and you should confirm the exact part number and revision before ordering or installing.
Q: Is it hot-swappable?
A: No. Power down the cabinet first unless the OEM documentation clearly says otherwise. Live removal is asking for trouble.
Q: Why is this cheaper than a factory-new board?
A: Because it is legacy inventory, not current OEM production. The lower price usually reflects surplus sourcing and limited availability.
Q: What should I verify before buying?
A: Confirm the full suffix, thermocouple type compatibility, terminal layout, and system revision. That saves most of the usual installation headaches.
