The TRICONEX AI2351 is a high-performance, high-precision analog input module from Triconex (a Schneider Electric brand), specifically engineered for integration with Tricon Triple Modular Redundancy (TMR) control systems. Designed for industrial Safety Instrumented Systems (SIS) and critical process control applications, it accurately acquires and converts field analog signals (such as temperature, pressure, and flow) to provide reliable process variable data. This module is widely used in industries with stringent requirements for measurement accuracy and safety, including oil & gas, chemicals, and power generation.
- Input Type: Analog signals (supports 4-20mA current signals, 1-5V voltage signals)
- Number of Input Channels: 8 independent channels with mutual isolation between channels
- Measurement Range:
- Current: 4-20mA (default), 0-20mA (optional)
- Voltage: 1-5V (default), 0-10V (optional)
- Accuracy Class: ±0.1% of full scale (typical), ensuring high-precision measurements
- Resolution: 16-bit A/D conversion, capable of capturing small signal changes
- Sampling Rate: 10 samples per second per channel (configurable)
- Isolation Performance: Isolation voltage ≥250V AC between channels and between channels and backplane
- Operating Temperature: -40°C to +70°C (wide-temperature design for extreme industrial environments)
- Storage Temperature: -50°C to +85°C
- Relative Humidity: 5% to 95% (non-condensing)
- Vibration Resistance: 10-500Hz, 1g acceleration (operating condition)
- Shock Resistance: 30g peak acceleration (11ms duration)
- Safety Integrity Level: Complies with IEC 61508 standard SIL 3 requirements
- Certifications: ATEX explosion-proof certification, IECEx certification, CE marking
- Electromagnetic Compatibility (EMC): Conforms to EN 61000 series standards with strong anti-interference capability
TMR Architecture Compatibility: Fully compatible with Triconex TMR systems, ensuring accurate and reliable analog data acquisition through triple modular signal processing and verification mechanisms. Single-channel faults do not affect overall system operation.
High-Precision Measurement: Equipped with a 16-bit A/D converter and high-precision signal conditioning circuits, with measurement error ≤±0.1% of full scale, meeting strict accuracy requirements for critical processes.
Flexible Signal Adaptation: Supports multiple analog signal types (current/voltage) and configurable ranges via software, adapting to various on-site sensors (e.g., pressure transmitters, temperature transmitters).
Online Diagnostics and Self-Calibration: Built-in real-time self-diagnostic functions monitor channel faults, signal anomalies, and hardware failures. Supports automatic calibration to reduce manual maintenance costs and ensure long-term measurement accuracy.
Hot-Swappable Support: The module supports online hot swapping, allowing replacement without system shutdown, minimizing the impact of maintenance on production.
Anti-Interference Design: Incorporates photoelectric isolation and filtering circuits to effectively suppress electromagnetic interference (EMI) and radio frequency interference (RFI) in industrial environments, ensuring signal stability.
- Oil and Gas Industry: Wellhead pressure/temperature signal acquisition, pipeline flow monitoring, storage tank level measurement
- Chemical Industry: Reactor temperature/pressure monitoring, solution concentration analysis signal acquisition, catalyst flow control
- Power Industry: Generator set steam pressure/temperature measurement, transformer oil temperature monitoring, boiler water level control
- Other Critical Industrial Fields: Nuclear power plant cooling system parameter monitoring, pharmaceutical reaction process variable acquisition, metallurgical furnace temperature control
- Must be used with Triconex Tricon controllers (such as 3700 series, 8000 series)
- Configurable via TriStation 1131 software, with customizable signal types, ranges, filtering parameters, etc.
- Works in conjunction with other modules in the system (e.g., digital modules, analog output modules) to form complete closed-loop control loops
- When selecting, confirm the output signal type (current/voltage) and range of on-site sensors to ensure compatibility with module parameters
- Installation must be performed by professional technicians, strictly following explosion-proof specifications (if used in hazardous areas)
- Regularly check the module operation status through system diagnostic tools, and perform calibration when necessary to maintain measurement accuracy
With its high precision, reliability, and strong compatibility, the TRICONEX AI2351 serves as a core component for analog signal acquisition in critical industrial processes, providing accurate data support for production safety and process optimization.
