I. Basic Information
Brand: EMERSON (formerly Westinghouse)
Model: 1C31113G01
Series: Ovation DCS Distributed Control System
Module Type: 16-channel Analog Input (AI) Module (±20mV signal acquisition)
Original Country of Origin: USA
Redundant Companion Module: 1C31114G01 (supports dual redundancy configuration)
Key Technical Specifications
Channel Specification: 16 isolated analog input channels
Input Signal: Standard ±20mV low-voltage signal, compatible with thermocouples, RTDs, and millivolt-level sensors
Sampling Accuracy: 13-bit A/D conversion resolution, supports independent parameter configuration per channel
Isolation Performance: 1000VDC isolation between channels, 2000VDC high-voltage isolation between channels and backplane, excellent anti-interference capability
Operating Environment
Operating Temperature: 0°C ~ 60°C
Storage Temperature: -40°C ~ 85°C
Humidity: 5% ~ 95% RH (non-condensing)
Power Supply: 24VDC powered via system backplane, maximum power consumption 4.2W
Hardware Features: Hot-swappable, single-channel fault diagnosis, overvoltage and overcurrent protection
Communication: Ovation backplane bus protocol, compatible with HART 7.0 fieldbus protocol
Main Applications
Designed specifically for acquiring weak millivolt-level analog signals from the field, commonly used in:
– Temperature measurement and thermocouple signal acquisition in boilers within thermal power, hydropower, chemical, and metallurgical industries
– Data acquisition from pressure, displacement, and weighing transmitters using millivolt signals
– Centralized monitoring, interlock control, and data uploading to higher-level computers in Ovation systems
Product Features
Industrial-grade wide-temperature design compliant with NERC and IEC 61508 safety standards for the power industry
Electrical isolation per channel effectively prevents signal drift and module damage caused by strong field interference
Supports hot-swap replacement without system shutdown, significantly reducing maintenance downtime
Long-life industrial components with MTBF (Mean Time Between Failures) ≥ 1.5 million hours
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