TRICONEX 3902AX input module

TRICONEX 3902AX

The Triconex 3902AX is a safety analog input module from the Tricon v11 series by Schneider Electric (formerly part of Invensys/Triconex). It is designed for high-integrity safety applications, such as those in process control systems (e.g., oil & gas, chemical plants, power generation).

Key Technical Parameters of the Triconex 3902AX Module:

1. Function:

• • 16-channel analog input module (supports 4–20 mA, 0–20 mA, or 0–5 V signals).
  • Used in Triple Modular Redundant (TMR) safety systems for reliable signal acquisition.

2. Input Specifications:

• • Input Type: Analog (current/voltage).
  • Channels: 16 (isolated).

3. Input Ranges:

• • Current: 4–20 mA, 0–20 mA.
  • Voltage: 0–5 V, 1–5 V.
  • Resolution: 16-bit (high accuracy).
  • Accuracy: Typically ±0.1% of full scale.

4. Isolation & Protection:

• • Channel-to-channel isolation (prevents cross-talk/interference).
  • Overvoltage/overcurrent protection (for harsh industrial environments).

5. Communication & Compatibility:

• • Works with Tricon v11 controller.
  • Supports Triconex’s proprietary communication protocol.
  • Hot-swappable (for maintenance without system shutdown).

6. Redundancy & Diagnostics:

• • TMR (Triple Modular Redundancy) for fault tolerance.
  • Built-in diagnostics for fault detection (open wire, short circuit, etc.).

7. Environmental & Power:

• • Operating Temperature: -40°C to +70°C (-40°F to +158°F).
  • Power Supply: Typically 24 V DC (varies based on system configuration).
  • Certifications: Compliant with IEC 61508 (SIL 3) for safety applications.

Typical Applications:

• Safety Instrumented Systems (SIS)
• Emergency Shutdown Systems (ESD)
• Fire & Gas Detection Systems
• Critical process monitoring

Main Brand:

ABB      Allen-Bradley      Alstom      Bently         Emerson     Foxboro

GE       MOOG       Schneider       Woodward       HIMA        Honeywell  

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•Shipping Port: Xiamen

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•Package: Original packing with cartons

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High-Availability Parts Database (Top Demand Models)

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TRICONEX Company Profile

TRICONEX is a renowned U.S. manufacturer of industrial safety control systems, founded in 1983 and now a brand under Schneider Electric.

Core Expertise

The company specializes in:

• ✅ Safety Instrumented Systems (SIS)
• ✅ Emergency Shutdown Systems (ESD)
• ✅ Critical control solutions

Key Industries Served

Widely used in high-risk sectors, including:

• ✅ Oil & Gas
• ✅ Chemicals
• ✅ Power Generation

Flagship Product

The Tricon Safety System is known for its 🔄 Triple Modular Redundancy (TMR) technology, ensuring:

• ✅ Fault tolerance
• ✅ Safe industrial operations

 Certifications & Global Reach

• ✅ Rigorous safety certifications (e.g., SIL ratings)
• ✅ Global service network

 Leadership

TRICONEX is a trusted leader in process safety solutions, delivering reliability and innovation worldwide.