GE IS230STTCH2A Simplex Thermocouple Input Assembly Terminal Board

Technical Parameters

Channels: 12 isolated thermocouple inputs

Supported Types: J, K, T, E, R, S, B (per-channel selectable)

GE IS230STTCH2A Measurement Range:

Type J: - 210 °C to +760 °C

Type K: - 270 °C to +1372 °C

Type T: - 270 °C to +400 °C

Type E: - 270 °C to +1000 °C

Type R/S: - 50 °C to +1768 °C

Type B: +0 °C to +1820 °C

Accuracy: ± 0.25 °C or 0.1% of reading, whichever is greater

Resolution: 0.1 °C

Sampling Rate: 20 samples/sec per channel

Cold-Junction Compensation: Integrated, per-channel digital correction

Filtering: Programmable low-pass filter up to 100 Hz; hardware spike suppression

Isolation: Reinforced channel-to-channel and channel-to-ground

Input Protection: ± 35 V overvoltage clamp; reverse-polarity protection

Connector: Right-angle PCB header for 52-position pluggable terminal block

Environmental Ratings:

Operating Temp: - 30 °C to +65 °C

Storage Temp: - 40 °C to +85 °C

Humidity: up to 95 % RH, non-condensing

Product function

GE IS230STTCH2A Simplex Thermocouple Input Assembly Terminal Board Conditions, linearizes, and digitizes thermocouple voltages into precise temperature readings, forwarding the data over the IONet Ethernet bus to the Mark VIe CPU. Ensures rapid, reliable temperature feedback for combustion control, safety trips, and performance monitoring without manual scaling or calibration at the board.

Core supporting modules

I/O Pack Carrier: IS42xPSCAH1B power/carrier assembly

Controller Module: Mark VIe CPU (e.g., IS200TPROH1C)

Complementary I/O Boards: RTD inputs, analog inputs (pressure, voltage), discrete I/O, relay outputs

Extension components

GE IS230STTCH2A Pluggable Terminal Blocks: Screw-clamp blocks keyed for error-proof field wiring

DIN-Rail & Panel Mount Kits: Adapter clips and angle brackets for 35 mm rails or panel installation

Shielding Accessories: Cable-shield clamps and ferrite beads for EMI suppression

Snubber & Suppression Kits: RC networks for transient protection on thermocouple lines

Software support

Configuration & Calibration:

Thermocouple type and filter settings configured via GE ControlST™/ToolboxST™ templates

On-line calibration wizard for zero-offset adjustment

Diagnostics & Monitoring:

Open-circuit detection and channel-health status reported in HMI and OPC tags

Self-test on power-up with diagnostic flags in controller diagnostics

Firmware Updates: Delivered as part of Mark VIe system releases; applied through ToolboxST™

Documentation: Detailed in GE Mark VIe/VIeS I/O Installation Guide and Thermocouple Input Module Reference Manual