TRICONEX 3720 Analog input module

TRICONEX 3720 Analog input module

TRICONEX 3720 Product Description：

The TRICONEX 3720 is an analog input module used in Tricon safety instrumented systems (SIS) by Schneider Electric.

Here’s a breakdown of its key features:

1. Function:

①Reads analog signals from sensors in the field, such as pressure, temperature, or flow.

②Converts these signals into digital values for processing by the Tricon SIS controller.

2. Key characteristics:

①Triple Modular Redundancy (TMR): This is a critical safety feature. The module has three independent sub-circuits that perform the same function. The system then compares (votes) the outputs and only uses the value where two out of three agree. This ensures high reliability and fault tolerance.

②Input range: Typically supports a range of 0 to 5 VDC or -5 to +5 VDC with some overrange protection.

③Hot-swappable: Can be replaced online without interrupting the process, minimizing downtime.

④Compatibility: Works with Tricon v10.2 and later systems.

3. Applications:

①Used in safety critical applications in various industries like chemical processing, oil & gas, and power generation.

②Monitors process variables for safety purposes, triggering safety shutdown if they go outside safe limits.

Our main brand:

ABB, GE, Allen Bradley, Honeywell, Emerson, Bently Nevada, Prosoft, Siemens, Westinghouse, Triconex, Foxboro, ICS Triplex, Hima, Schneider, Yokogawa, Woodward, B&R, KEBA, etc

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