Description
GE IS200SPTDH2ACB Thermocouple Input/Termination Board
The GE IS200SPTDH2ACB, also cataloged as the IS200SPTD Thermocouple Input/Termination Board, operates as a dedicated hardware component for thermocouple signal termination and temperature data conditioning within the GE Mark VI Speedtronic turbine control system. The board interfaces E, J, K, S, and T thermocouple sensors with VTCC input modules through filtered and compensated signal paths.
Hardware Specifications
| Parameter |
Specification |
| Model |
IS200SPTDH2ACB |
| Brand |
GE |
| Origin |
United States |
| Weight |
0.5 kg |
| Dimensions |
2 x 19 x 26 cm |
| Operating Temp |
-40 deg C to +85 deg C |
| Power Consumption |
Chassis interface supplied |
| Product Type |
Thermocouple Input/Termination Boards |
| System Platform |
GE Mark VI Speedtronic Turbine Control System |
| Sensor Types |
E, J, K, S, T thermocouples |
| Input Channels |
24 inputs, grounded or ungrounded |
| Input Range |
-8 mV to +45 mV |
| Cold-Junction Compensation |
Integrated reference junctions |
| Accuracy |
+/-0.1% of full scale |
| Signal Filtering |
50/60 Hz interference filtering |
| Mounting Interface |
DIN rail or chassis integration |
| Protection Features |
Conformal coating and overvoltage protection |
| Compatibility |
VTCC input boards for simplex and TMR configurations |
Firmware Flash Compatibility and I/O Density Scaling
The GE IS200SPTDH2ACB provides thermocouple field termination and signal conditioning functions within the Mark VI control architecture. The board routes multiple temperature sensor inputs to compatible VTCC thermocouple processing modules while maintaining signal filtering and cold-junction reference compensation.
The module supports I/O density scaling through a 24-channel thermocouple interface arrangement. The terminal board configuration allows simplex and TMR system layouts depending on the associated VTCC controller hardware. Field signal paths are designed for low-level millivolt thermocouple measurements requiring controlled grounding and noise management.
Frequently Asked Questions
Q: What thermocouple types can be connected to the IS200SPTDH2ACB?
A: The board supports E, J, K, S, and T thermocouple sensor inputs with grounded or ungrounded channel configurations.
Q: What is the function of the cold-junction compensation on this terminal board?
A: The integrated reference junction circuitry compensates for terminal temperature variations to maintain thermocouple measurement accuracy.
Q: Can the IS200SPTDH2ACB be used in redundant Mark VI configurations?
A: The board supports simplex and TMR configurations when paired with compatible VTCC thermocouple input modules.
Field Installation Guidelines
Install the IS200SPTDH2ACB in the specified GE Mark VI control cabinet location and verify compatibility with the connected VTCC input hardware before wiring.
Use shielded thermocouple cables where required and terminate cable shields according to the cabinet grounding design. Keep thermocouple wiring separated from high-current conductors, relay circuits, and switching power cables to reduce electromagnetic interference.
Confirm thermocouple polarity, channel allocation, and terminal connections before system startup. Check that field wiring insulation, grounding paths, and terminal connections comply with the turbine control system installation documentation.
