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Phone: +86 16626708626Description
Key Technical Specifications
- Part Number: IS200VTCCH1C
- Manufacturer: General Electric
- Series: Mark VI turbine control
- Board Type: Thermocouple input board
- Input Capacity: 24 thermocouple channels
- Supported Thermocouple Types: E, J, K, S, T
- A/D Resolution: 16-bit
- Input Span: -8 mV to +45 mV
- Cold Junction Accuracy: 2 F
- Scan Rate: 120 times per second at 60 Hz, 100 times per second at 50 Hz
- Max Cable Distance: Up to 300 m
- Country of Manufacture: USA
Product Introduction
GE IS200VTCCH1C is a Mark VI thermocouple input board used in turbine control systems. It accepts 24 thermocouple inputs and converts them for the controller with 16-bit resolution, making it a direct fit for temperature monitoring tasks in GE industrial control racks.
This board is typically selected for exact-part replacement work where channel count, thermocouple type, and rack compatibility matter more than price. The TBTC terminal board interface and Mark VI integration make it a straightforward choice when the site already runs GE turbine control hardware.
- IS200VTCCH1C
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No temperature values on one or more channels | Loose TBTC connector, bad thermocouple, or failed input channel | ✅ High | Measure thermocouple continuity, inspect J3/J4 connections, check diagnostics in the controller | Reseat connectors and verify the sensor first; replace the board only if the fault follows the card |
| All channels read open or frozen | Loss of rack power or processor communication issue | ✅ High | Measure rack supply voltage and check board status LEDs | Confirm power and rack health before condemning the card |
| One channel reads far off-scale | Wrong thermocouple type, reversed polarity, or cold junction issue | ✅ High | Compare sensor type to configuration and verify polarity at the terminal block | Recheck wiring and site setup before replacement |
| Intermittent alarms after startup | Connector contamination, loose seating, or thermal drift | ✅ Medium | Reseat the card, inspect pins, and watch readings during warm-up | Clean contacts and verify cabinet cooling |
| Only a few channels fail | Sensor or field wiring fault | ❌ Low | Swap the suspect thermocouple with a known-good sensor | Replace the sensor or field wiring first |
| Board fails after swap | Configuration mismatch or wrong suffix revision | ✅ High | Match label, suffix, and original configuration photos | Confirm exact part number and settings before reinstalling |
If you get stuck, send technical support clear photos of the label, rack slot, TBTC wiring, and the diagnostic log output.
Frequently Asked Questions
Q: Is IS200VTCCH1C a direct replacement for my old card?
A: Usually yes, but only if the exact suffix, rack interface, and site configuration match. GE Mark VI boards can look similar and still differ enough to cause startup issues.
Q: What does this board do?
A: It reads thermocouple signals and converts them for the Mark VI control system. The board supports 24 inputs and works with E, J, K, S, and T thermocouples.
Q: Can I hot-swap it?
A: Treat it as not hot-swappable unless your OEM documentation says otherwise. Pulling a control board under power is a good way to damage the rack or the card.
Q: Why do some listings show different conditions?
A: This part is often sold as new surplus, unused, or tested used stock. The lower price usually reflects inventory source, not a lower part number or different function.
Q: Do I need to reconfigure the controller after replacement?
A: Not always, but you should preserve the original jumper, wiring, and system configuration. A clean swap still fails if the field setup changes.
Q: What should I verify before ordering?
A: Match the full part number, suffix, thermocouple type support, and Mark VI compatibility. Also confirm whether you need new surplus, refurbished, or OEM sealed stock.
