Product introduction

Triconex 3721 is a Triple Modular Redundant (TMR) differential analog input modu

Triconex 3721 is a Triple Modular Redundant (TMR) differential analog input module designed for Triconex safety instrumented systems. The following is a detailed introduction: ### Basic Information - **Manufacturer**: Triconex, a part of Schneider or formerly associated with Invensys.   - **Type**: Differential analog input module, and its operation is based on TMR technology, which uses three isolated, parallel control systems and extensive diagnostics. Via two-out-of-three (2oo3) voting logic, it can offer high-integrity, error-free, and uninterrupted process operation, eliminating single points of failure. ### Technical Specifications - **Input Range**: It supports differential DC input signals within the range of 0 to 5 VDC or -5 to +5 VDC.   - **Number of Channels**: It is a 32-point module that can simultaneously collect multiple analog signals to satisfy various monitoring requirements.   - **Connection**: The module uses two 50-pin male D-sub connectors for signal connection. For applications that require screw terminals or automatic cold junction compensation (CJC), it can be used with the detachable 3721-ST accessory.   ### Functional Characteristics - **High Reliability**: Being SIL 3-certified, it is suitable for fail-safe applications. Its redundant design and fault-tolerance features ensure high availability, which is vital for safety-critical scenarios.   - **Easy Configuration**: The module can be configured via Tristation 1131 software. Users can configure input parameters as needed to adapt to different application conditions.   - **Hot Swappable**: The module supports hot swapping. It can be replaced during system operation without interrupting the controlled process, enhancing the system's maintainability.  ### Application Areas This module is widely used in industries like oil and gas, chemical processing, petrochemicals, power generation, and others where reliability and fault tolerance are crucial, being used to receive and process analog signals from field devices like temperature, pressure, and flow sensors for high-precision process monitoring and control.

TRICON 3721 TRICONEX3721 DIFFERENTIAL Analog Input Module Schneider

TRICON 3721 TRICONEX3721 DIFFERENTIAL Analog Input Module Schneider

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