Description
⚙️ Product Specifications
- Brand: GE (General Electric)
- Model: IS200TTURH1C
- Series: Mark VI / Mark VIe Distributed Control System
- Product Name: Turbine Temperature Terminal Board (TTUR)
- Origin: USA
- Status State: Active / Refurbished
- Dimensions: Standard Mark VIe terminal board format (approx. 11″ x 6″ x 2″ / 27.9×15.2×5.1 cm)
- Weight: Approx. 0.7 kg (1.5 lbs)
- Country of Origin: USA
- Power Rating: Low Voltage Field Signal / Backplane Powered
📖 Operation Guidelines & Usage Instructions
The GE IS200TTURH1C is a dedicated Turbine Temperature (TTUR) terminal board designed to interface and terminate thermocouple and RTD temperature sensor signals from industrial turbines into Mark VI and Mark VIe control systems. Ensure all system rack power, external auxiliary power supplies, and field thermocouple/sensor loops are completely isolated, locked out, and tagged before handling, installing, or servicing the board. Always wear a grounded electrostatic discharge (ESD) wrist strap and handle the printed circuit board by its edges. Routine maintenance includes inspecting terminal block screw torque for secure connections, verifying cold-junction compensation components, and keeping the cabinet environment clean and dust-free.
⚡ Power-Up / Power-Down Sequence
- Power-Up Sequence: Verify that all field sensor wiring, shield grounds, and mating I/O processor pack connectors are properly aligned and securely attached to the terminal board. Switch on the system control power supply. Observe the diagnostic status indicators on the associated temperature I/O pack to confirm proper network communication and channel initialization.
- Power-Down Sequence: Safely halt active temperature monitoring loops or associated control interlocks through the ToolboxST engineering software. Turn off the main rack power distribution unit and isolate all external field sensor power feeds before disconnecting wiring or performing maintenance.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary purpose of the TTUR terminal board in the Mark VIe system?
A: It provides secure physical termination and signal conditioning pathways for critical temperature sensors (such as thermocouples and RTDs) monitoring turbine bearings, exhaust gases, and lube oil systems.
- Q: Can wiring be serviced or replaced on the IS200TTURH1C while the system is energized?
A: No, live working on temperature terminal boards is discouraged as it can induce thermal reading errors, open-circuit faults, or short circuits. Always de-energize and lock out relevant circuits before servicing.
🚀 Recommended GE Models
- IS220PTURH1A
- IS230TTURH1C
- IS420UCSCH1A
- IS420PAIASH1A
- IS220UCSAH1A
- IS200STAIH1A
- IS200SRTDH2A
- IS200TRLYH1B
- IS200TBCIH1C
- DS200TCQAG1A


