TRICONEX AIH 3723X Product Specification
1. Product Overview
The TRICONEX AIH 3723X is a SIL 3-certified analog input module dedicated to TRICONEX Tricon and Tricon CX safety instrumented systems (SIS). As a pivotal data acquisition component in high-risk industries—such as oil & gas, petrochemicals, and power generation—it specializes in collecting, conditioning, and transmitting 4–20 mA signals from field sensors (e.g., pressure, temperature, and level transmitters). This module guarantees accurate data flow to SIS, enabling reliable safety-critical decisions like emergency shutdowns (ESD) and process interlocks.
Engineered with TRICONEX’s proprietary triple-modular redundancy (TMR) architecture, the AIH 3723X eliminates single points of failure, meeting the rigorous safety requirements of SIL 3 (IEC 61508). It features robust signal isolation and real-time diagnostics, maintaining stable performance under harsh industrial conditions (electromagnetic interference, voltage spikes) while complying with global industry standards.
2. Technical Parameters & Specifications
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Category
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Details
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Product Type
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Analog Input Module (4–20 mA), SIL 3 Certified
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Compatible Systems
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TRICONEX Tricon, Tricon CX Safety Instrumented Systems
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Input Channels
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16 Isolated Channels (4 groups of 4 channels)
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Input Signal
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4–20 mA DC; Supports 2-wire/4-wire transmitters; HART 7.0 Compatible
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Accuracy
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±0.1% of Full Scale; Temperature Drift: ≤±0.01%/°C (-40°C to 85°C)
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Isolation
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Channel-to-Channel: 500 V DC; Channel-to-Backplane: 1500 V DC
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Power Supply
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Tricon Backplane: 5 V DC; Power Consumption: ≤3 W
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Environmental Ratings
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Operating Temp: 0°C–60°C; Humidity: 5%–95% (Non-Condensing); Vibration: ≤2 g
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Mechanical Dimensions
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160 mm × 100 mm × 25 mm (L×W×H); Backplane-Mounted
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Certifications
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IEC 61508 (SIL 3); IEC 61511; ATEX Zone 1; IECEx; UL 61010-1; CE
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3. Key Features
3.1 TMR Safety Architecture
Three independent signal processing paths operate concurrently, with a majority-voting mechanism to ensure accurate output. This redundancy design prevents single-component faults from triggering system failures, making it ideal for safety-critical scenarios like refinery ESD systems and nuclear power plant process control.
3.2 High Precision & Signal Integrity
With ±0.1% full-scale accuracy and minimal temperature drift, the module ensures consistent signal conversion even in extreme ambient conditions. Isolated channels avoid cross-talk between sensors, while surge protection (IEC 61000-4-5) shields it from voltage spikes common in industrial settings.
3.3 Smart Diagnostics & HART Compatibility
Real-time self-diagnostics monitor channel faults, signal loss, and module health, sending alerts to SIS for proactive maintenance. HART compatibility enables remote communication with smart transmitters, allowing configuration adjustments and diagnostic data retrieval without on-site operations.
4. Related TRICONEX Products
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TRICONEX AIH 3703: 8-channel analog input module (0–5 V DC) for low-power sensor applications in light industry.
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TRICONEX AOH 3725: 16-channel analog output module (4–20 mA) for controlling valves, actuators, and regulators.
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TRICONEX DIX 3705: 32-channel digital input module, paired with AIH 3723X for mixed analog-digital signal acquisition.
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TRICONEX DOX 3715: 16-channel digital output module for safety-critical switching tasks like pump shutdowns.
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TRICONEX Tricon 4100: High-performance SIS controller, fully integrated with AIH 3723X for large-scale industrial systems.
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