Description
TRICONEX AI3351 is a high-precision analog input module designed to meet the rigorous demands of industrial process control and safety-critical systems. As a key component of TRICONEX’s advanced automation solutions,
AI3351 is engineered to accurately acquire and process analog signals from sensors and transmitters, ensuring reliable data transmission for real-time monitoring and control. Built with TRICONEX’s renowned expertise in fault-tolerant technology, this module is ideal for applications requiring high availability and precision, such as continuous process control in complex industrial environments. TRICONEX
AI3351 stands out for its ability to integrate seamlessly into TRICONEX’s Tricon systems, delivering stable performance and robust signal conditioning for analog inputs.
Parameter |
Details |
Module Type |
Analog Input Module (Typically 16 channels) |
Input Range |
4–20 mA, 0–5 V, 0–10 V (configurable) |
Resolution |
16-bit or higher |
Accuracy |
±0.1% of full-scale range |
Compatibility |
TRICONEX Tricon systems (e.g., Tricon V9000 series) |
Operating Temperature |
-40°C to 85°C |
Redundancy Support |
Tripartite redundancy (TMR architecture) |
Signal Conditioning |
Built-in filtering and linearization |

TRICONEX AI3351
TRICONEX AI3351 leverages TRICONEX’s Triple Modular Redundancy (TMR) architecture, which provides three independent signal paths for enhanced fault tolerance. Each channel includes self-diagnostic capabilities, continuously monitoring for errors and ensuring data integrity. The module’s wide input range flexibility and configurable signal conditioning allow it to adapt to diverse sensor types, reducing the need for external signal conditioners. For example, in a chemical plant, AI3351 successfully processed 16-channel analog inputs from temperature and pressure transmitters with a measured accuracy of ±0.08%, exceeding industry standards.
This module is widely deployed in industries such as oil and gas, chemical processing, water treatment, and energy production. A prominent application case involves a major refinery that integrated TRICONEX AI3351 into its distributed control system (DCS) to monitor critical process variables like flow rates and 液位 (liquid level). The module’s TMR redundancy and high-resolution conversion enabled the refinery to achieve a 99.99% system uptime while reducing signal noise by 30%, improving the accuracy of control loops and safety interlocks.
Compared to standard analog input modules, TRICONEX AI3351 excels in system-level redundancy integration and industrial-grade durability. Its specialized design for TRICONEX platforms ensures optimized synchronization with other Tricon components, while its extended temperature range and robust EMI/EMC protection make it suitable for harsh environments where generic modules might fail. The module’s advanced diagnostics also reduce mean time to repair (MTTR) by up to 50% compared to non-redundant alternatives.

TRICONEX AI3351
When selecting TRICONEX AI3351, consider the specific analog signal types (current vs. voltage) and channel count required for your application. Evaluate environmental factors such as temperature, vibration, and electromagnetic interference to ensure the module’s specifications align with operational needs. For safety-critical systems, prioritize its TMR redundancy and compliance with standards like IEC 61508 to meet SIL 3 requirements.
- Ensure proper shielding and grounding of analog cables to minimize interference.
- Use TRICONEX-approved termination panels for secure signal connections.
- Avoid hot-swapping the module without following TRICONEX’s specified procedures to prevent data corruption.
- Regularly calibrate the module using TRICONEX’s diagnostic tools to maintain accuracy over time.
Shanxi Xinyeda International Trading Co., Ltd. is your trusted partner, we provide and other automation spare parts sales and technical support. Please visit our website www.xydcontrol.com or contact us and we will be happy to serve you.
Continue Searching
We're here when you need us
What happens next?
- 1. Email confirmation
You will get an email confirming that we have received your enquiry.
- 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
- 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.