1C31169G02 specialized analog input module

1C31169G02 is a specialized analog input module developed by Westinghouse (now integrated into Emerson Automation Solutions) for its Ovation Distributed Control System (DCS). It is designed to accurately acquire and condition low-level analog signals—specifically thermocouple (TC) and resistance temperature detector (RTD) signals—making it a core component for direct temperature measurement in harsh industrial environments like power plants and petrochemical sites. Below is its detailed information:

1. Core Technical Specifications

Parameter Category	Specific Details
Input Channels	8 independent isolated analog input channels; each channel is electrically isolated from others and the system backplane to eliminate cross-interference, ensuring accuracy of temperature signal acquisition.
Supported Input Signals	- Thermocouple (TC): Supports common industrial types (J, K, T, E, R, S, B), covering temperature ranges from -200°C (T-type) to 1800°C (B-type), suitable for high/low-temperature measurement scenarios.- Resistance Temperature Detector (RTD): Compatible with Pt100 (385Ω/°C), Pt1000, and Ni100 types; supports 2-wire, 3-wire, and 4-wire wiring (3/4-wire for high-precision applications to eliminate lead resistance errors).- Optional: 4–20mA DC current signals (for connecting temperature transmitters, expanding application flexibility).
Measurement Accuracy	- TC signals: ±0.1°C (for J/K/T/E types at 0–500°C) + ±0.1% of reading, ensuring precise temperature capture for critical processes.- RTD signals: ±0.05°C (for Pt100 at 0°C) + ±0.01% of reading, meeting high-precision temperature monitoring needs (e.g., reactor wall temperature).- Temperature drift: ±0.001°C/°C (module self-temperature effect), minimizing accuracy loss caused by ambient temperature changes.
Sampling & Filtering	- Sampling rate: 10 samples per second per channel (balances real-time performance and noise suppression).- Built-in low-pass filter: Configurable cutoff frequency (0.1–10Hz) to filter out industrial noise (e.g., power frequency interference from heaters), ensuring stable signal output.
Power Supply	24V DC ±10% (power consumption ≤5W), fully compatible with Ovation DCS rack power modules (e.g., 1C31234G01), adapting to voltage fluctuations in industrial power grids.
Isolation Rating	- Channel-to-channel isolation: ≥1000V AC (1 minute).- Module-to-backplane isolation: ≥2500V AC (1 minute), effectively suppressing ground loops and electromagnetic interference (EMI) from industrial equipment (e.g., high-power heaters, motors).