TRICONEX | AI2351 7400210-100 | TMR Analog Input Module

Description

Triconex AI2351 7400210-100 Safety Analog Input Module

As an authorized Triconex distributor, Saulcontrol delivers mission-critical safety solutions with comprehensive 1-year warranties and 24/7 technical support for high-integrity process protection systems.

Technical Specifications

Main Features and Advantages

The AI2351 7400210-100 implements Triple Modular Redundancy (TMR) technology with three independent input circuits per channel, providing fault-tolerant measurement for critical safety applications. Its advanced diagnostics include continuous channel validation, wire-break detection, and out-of-range monitoring with automatic voting to identify and isolate faulty signals. The module maintains SIL 3 certification through rigorous failure mode analysis and proven-in-use design principles.

AI2351

High-density design reduces panel space while maintaining 1500V isolation between channels. Integrated HART communication enables simultaneous digital data transmission without compromising analog signal integrity. The module’s hot-swappable design allows replacement without system shutdown, while front-accessible terminals simplify maintenance. Continuous health monitoring provides predictive maintenance data through Triconex DiagManager software, reducing downtime through proactive component replacement.

Application Areas

Process Safety Systems: The AI2351 7400210-100 monitors critical parameters in refinery emergency shutdown systems, including reactor temperatures and pressure safety valve status. In offshore platforms, it provides reliable gas detection inputs for fire and gas systems. Chemical plants utilize its SIL 3 certification for toxic gas monitoring and high-integrity pressure protection systems.

Power Generation: Nuclear facilities deploy this module for reactor coolant monitoring with fault-tolerant redundancy. Combined cycle plants use it for turbine overspeed protection and boiler safety interlocks. The module’s robust design withstands electromagnetic interference from high-voltage switchyards while maintaining measurement accuracy during fault conditions.

Related Products

AO2351 – Analog output counterpart module
DI2351 – Digital input module for safety systems
DO2351 – Digital output module for actuation control
3008 – Main processor module for Tricon system
8312 – Communication module for OPC connectivity
4409 – Power supply module for redundant systems
3704E – Enhanced communication gateway

Installation and Maintenance

Installation Preparation: When installing the AI2351 7400210-100, maintain proper grounding per ISA-RP 12.6 standards. Use shielded twisted pair cables with shields grounded at single point. Verify channel configuration in Tristation 1131 software before power-up. For HART-enabled loops, ensure proper impedance matching and avoid parallel wiring runs with power cables.

Maintenance Suggestion: Perform quarterly validation of diagnostic functions using Triconex DiagManager. Calibrate channels annually with traceable references. Monitor mean-time-between-failure predictions and replace modules when diagnostic fault rates exceed thresholds. Maintain spare modules programmed with identical configurations for rapid replacement. Upgrade firmware during planned shutdowns to ensure compatibility with 3008 processor modules.

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