1C31194G03 high-precision analog input module

1C31194G03 is a high-precision analog input module developed by Westinghouse (now integrated into Emerson Automation Solutions) for its Ovation Distributed Control System (DCS). It is dedicated to accurately acquiring, conditioning, and transmitting field analog signals (such as current and voltage from sensors/transmitters), providing reliable data support for industrial process control in harsh 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 and ensure signal accuracy.
Supported Input Signals	- Primary: 4–20mA DC current signals (compatible with mainstream industrial transmitters for pressure, flow, level, and temperature).- Optional: 0–10V DC / 1–5V DC voltage signals (for low-power sensors like pH meters, conductivity detectors, or voltage-output instruments).
Measurement Accuracy	- At 25°C (ambient temperature): ±0.1% of full scale (FS) + ±1/2 least significant bit (LSB), with a 99.7% confidence level—meeting high-precision monitoring needs.- Temperature coefficient: ±0.002% FS/°C (in -40°C to 70°C), minimizing accuracy drift caused by environmental temperature changes.
Resolution	14-bit ADC (Analog-to-Digital Converter), capable of capturing tiny signal fluctuations (e.g., 0.001mA changes in 4–20mA signals) to detect subtle process deviations.
Sampling Rate	Minimum 20 samples per second per channel; configurable for 50/60Hz power frequency interference suppression, balancing real-time data transmission and anti-noise performance.
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) in complex industrial settings.