The GE IC695ALG312 is an advanced isolated thermocouple input module purpose-built for GE Fanuc PACSystems RX3i programmable automation controllers. This high-resolution analog module accurately captures temperature signals from a variety of thermocouple sensor types, converting them into precise digital data for control logic and process monitoring. Each of the 12 channels is fully isolated, reducing noise and ground loop issues, and the module’s flexible configuration and diagnostic capabilities make it ideal for demanding industrial temperature acquisition tasks.
Technical Specifications
| Specification | Details |
|---|---|
| Module Type | Isolated Thermocouple Input Module |
| Compatible PLC Series | GE Fanuc PACSystems RX3i (requires RX3i Universal Backplane and CPU with firmware v5.5+) |
| Number of Inputs | 12 individually isolated thermocouple channels |
| Supported Thermocouple Types | J, K, T, E, R, S, B, N, C |
| Voltage Input Range | ±50 mV / ±150 mV |
| Resolution | ~11.5–16 bits depending on filter settings |
| A/D Conversion | Sigma-Delta with configurable integration times |
| Update Rate | 15 ms to 120 ms per channel (configurable) |
| Accuracy | ±0.1% of span @ 25 °C; ±0.25% span over full temperature range |
| Data Format | 32-bit IEEE float or 16-bit integer selectable |
| Common-Mode Rejection | 100 dB at 50/60 Hz (filter dependent) |
| Isolation Voltage | 250 VAC continuous; 1500 VAC for 1 min between channels and backplane |
| Diagnostics | Open-circuit, over/under-range, high/low alarms configurable |
| Backplane Power | 3.3 V @ ~400 mA, 5 V @ ~300-425 mA depending on config |
| Operating Temp. | 0 °C to +60 °C |
| Storage Temp. | –40 °C to +85 °C |
| Humidity (Non-condensing) | 5%–95% |
| Mounting | Single RX3i Universal Backplane slot |
| Dimensions (L×W×H) | ~145 × 34 × 140 mm (standard RX3i module form factor) |
| Weight | ~0.45 kg (approx., typical component weight) |
The IC695ALG312 supports direct wiring of thermocouple sensors without external signal conditioners and provides accurate temperature conversion in either °C or °F or raw mV, depending on configuration.
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