Description
The GE IS200TDBTH2A is a turbine display and terminal board developed by General Electric for the Mark VI and Mark VIe heavy-duty turbine control systems, engineered to manage critical thermocouple inputs, terminal connections, and localized signal conditioning.
📋 Technical Specifications Datasheet
- Brand: GE (General Electric)
- Model: IS200TDBTH2A (Revision H2A)
- Series: Mark VI / Mark VIe Turbine Control Platform
- Product Name: Thermocouple Display / Terminal Board
- Manufacturing Origin: United States
- Product Status: Industrial Control Standard / Replacement Part
- Dimensions: Standard Mark VIe rack-compatible printed circuit board form factor
- Weight: Approximately 0.8 kg
- Original Equipment Manufacturer: GE Energy / Industrial Solutions
- Power Rating: Low-voltage internal logic and sensor excitation power distribution
⚙️ Operating Norms and Usage
- Observe strict electrostatic discharge (ESD) safety protocols, utilizing a properly grounded wrist strap when handling the printed circuit board.
- Mount the board securely within its designated core cabinet slot or terminal board enclosure, ensuring full edge-connector and backplane engagement.
- Verify all thermocouple wiring, cold-junction compensation sensors, and terminal block screw torque against system installation drawings prior to powering up.
⚡ Power-On / Power-Off Sequence
- Power-On Sequence: Confirm all incoming signal terminations and power feeds are secure, energize the low-voltage logic supply, and monitor controller diagnostic indicators for normal communication and boot status.
- Power-Off Sequence: Disable active turbine control loops via the HMI, power down the rack power distribution sources, and ensure full circuit discharge before removing or servicing the board.
📖 Product Usage Instructions
- Continuously monitor board diagnostic indicators and system HMI status to track thermocouple health and loop integrity.
- Use GE ToolboxST configuration software to verify signal scaling, calibration, and diagnostic parameters associated with the terminal board.
- Periodically inspect terminal blocks and wiring connections for signs of thermal stress, vibration wear, or oxidation.
❓ Common Questions & Answers Q&A
- Q: What is the primary function of the IS200TDBTH2A board?
A: It terminates and conditions thermocouple sensor inputs, routing precise temperature data safely to the core control processors.
- Q: Does this board require cold-junction compensation?
A: Yes, thermocouple terminal boards in the Mark VI/VIe series utilize dedicated onboard temperature sensors to provide accurate cold-junction compensation.
Recommended Alternative Series & Models
- GE Mark VIe Board: IS200TBCIG1AAB
- GE Mark VIe Board: IS200DSPCH1AEA
- GE Mark VIe Board: IS200EPDMH1AAA
- GE Mark VIe Board: IS200VRTCH1AAA
- GE Mark VIe Module: IS420UCSCH1A
- GE Control Board: DS200TBCIG1AAB
- GE Control Board: DS200TCQBG1B
- GE Drive Board: 531X301DCCAFG2
- GE Terminal Board: 531X305NTBAPG1
- GE Multilin Relay: SR750-P1-G1-S1-HI-A20-R-E-H


