TRICONEX AIH3273X TMR Analog Input Module for Safety Instrumented Systems (SIS)

Product Description

The TRICONEX AIH3273X is a high-integrity Triple Modular Redundant (TMR) analog input module, engineered by TRICONEX (Schneider Electric) for SIL 3 safety instrumented systems (SIS) in critical industrial environments. As a core signal acquisition component, this hot-swappable module is designed to collect and process 4-20mA/0-10V analog signals from field devices (pressure, temperature, flow transmitters) with high precision and noise immunity. It features channel-to-channel and channel-to-ground isolation, advanced diagnostics with LED status indicators, and seamless integration with Tricon/Tricon CX chassis—making it ideal for emergency shutdown (ESD), fire & gas (F&G), and process monitoring systems in oil & gas, chemical, petrochemical, and power generation industries.

Key Functions

The AIH3273X module delivers TMR-based high-precision analog signal acquisition, conversion, and fault-tolerant processing for safety-critical applications. Key functions include: configurable input ranges (4-20mA current loop, 0-10V DC voltage); 16-bit resolution with ±0.1% full-scale (FS) accuracy; high-speed sampling with configurable rates; channel-to-channel and channel-to-ground isolation (2500V AC optical isolation) to prevent ground loops and electrical noise interference; TMR majority voting (2-out-of-3) for data integrity; hot-swappable design for online maintenance without system shutdown; LED diagnostics for module health, channel status, and voting results; and compatibility with Tricon/Tricon CX main/expansion chassis.

Application Scenarios

The TRICONEX AIH3273X is deployed in safety-critical industrial applications requiring TMR redundancy, high-precision analog signal acquisition, and SIL 3 compliance. In offshore platforms and refineries, it collects pressure, temperature, and flow data from process transmitters to support ESD and F&G systems, enabling rapid shutdown during abnormal conditions. In chemical plants, it monitors reactor temperature, pressure, and level signals to trigger safety interlocks and prevent overpressure or thermal runaway. In power generation facilities, it acquires turbine/generator vibration, oil pressure, and exhaust temperature data for condition monitoring and protection. It is also used in mining, pharmaceutical manufacturing, and water/wastewater treatment—all scenarios where reliable analog signal processing is critical to preventing safety incidents.

Technical Specifications

• Global Inventory Network: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses—supporting faster delivery and reduced logistics costs.
• Pricing & After-sales: Competitive prices paired with reliable after-sales warranty services.
• Customer Coverage: Serving clients across regions including the United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
• Product Quality Assurance: All products are brand new and original. Spare parts include a 1-year warranty, and all items undergo pre-delivery testing and certification.
• Discount Policy:
• Multi-product orders qualify for custom discounts (contact us for details).
• We offer further price adjustments if you receive a lower quote for identical products from other suppliers, tailored to your budget.