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GE IS200TPROH1C Thermocouple Input Terminal Board

The GE IS200TPROH1C, also cataloged as the IS200TPROH1C Thermocouple Input Terminal Board, operates as a dedicated hardware component for thermocouple signal conditioning within the GE Mark VI Speedtronic turbine control system. It provides physical interface paths for turbine temperature sensors, converting millivolt-level thermocouple signals into controller-readable measurement data.

Hardware Specifications

Parameter	Specification
Model	IS200TPROH1C
Brand	GE (General Electric)
Origin	United States
Weight	0.5 kg
Operating Temp	-30 deg C to +65 deg C
Power Consumption	Not specified
Product Type	Thermocouple Input Terminal Board
Series	Mark VI Speedtronic
Input Channels	Up to 24 thermocouple channels
Thermocouple Types	J, K, T, E and compatible types
Signal Range	+/-100 mV typical
Signal Conversion	12-bit A/D conversion
Cold Junction Compensation	Integrated CJC function
Power Supply	24 VDC
Mounting Type	Rack/cabinet slot installation

Thermocouple Signal Processing and Mark VI Interface

The IS200TPROH1C provides multi-channel thermocouple termination and signal conditioning for GE Mark VI control architectures. The board accepts low-level thermocouple millivolt signals and transfers processed temperature information through the associated I/O pack interface.

The integrated cold junction compensation function maintains temperature measurement accuracy by compensating for terminal reference temperature variations. The input design supports thermocouple fault monitoring functions including open-circuit and short-circuit detection.

For Mark VI system integration, the terminal board connects with compatible I/O packs such as PTCC modules and exchanges control data through the VME-based controller architecture.

Frequently Asked Questions

Q: What thermocouple inputs are supported by the IS200TPROH1C?
A: The board supports multiple thermocouple types including J, K, T, and E sensors, with input configuration determined by the connected Mark VI control system setup.

Q: Does the IS200TPROH1C provide cold junction compensation?
A: Yes. The board includes integrated cold junction compensation for thermocouple reference temperature correction.

Q: What power supply is required for the IS200TPROH1C?
A: The terminal board operates with a 24 VDC supply within the Mark VI control system cabinet configuration.

Field Installation Guidelines

Install the IS200TPROH1C in the designated GE Mark VI cabinet slot location and verify mechanical alignment before securing the board connections.

Use shielded thermocouple wiring with appropriate grounding practices to reduce electrical interference on low-level millivolt signals. Keep thermocouple cables separated from high-current power wiring, motor cables, and switching circuits.

Confirm that the thermocouple type configuration matches the connected field sensors before commissioning. Check terminal connections, sensor polarity, and cable continuity during installation and maintenance procedures.

Follow GE Mark VI cabinet grounding, shielding, and I/O wiring documentation for final field termination and system integration.

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