TRICONEX 3700A
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Product NameTRICONEX 3700A 32-Channel TMR Analog Input Module
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Product DescriptionThe TRICONEX 3700A is a high-reliability 32-channel analog input module designed specifically for safety instrumented systems (SIS) and critical process control. It adopts triple modular redundancy (TMR) architecture, which is a core component to ensure fault tolerance and stable operation of industrial control systems.This module is equipped with 32 differential DC-coupled input channels, mainly used to collect 0-5VDC analog signals, and can also convert 0-20mA current signals into measurable signals with a 250Ω shunt. It uses a mid-value selection voting algorithm to ensure the integrity and accuracy of the collected data. Even if a single channel fails, it will not affect the normal operation of the entire module, and it can still work stably when multiple faults occur in some cases.It has complete self-diagnostic capabilities, which can perform continuous diagnosis on each channel, detect and report faults in time without causing module failure. The hot-spare function enables online replacement of faulty modules, greatly reducing production downtime. With a rugged structural design and intrinsic safety certification, it can operate stably in harsh and hazardous industrial environments. It is widely used in oil and gas, chemical processing, power generation and other industries, and is compatible with TRICON system backplanes and external termination panels (ETP) for seamless integration.
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Product Parameters
Parameter Item Details Number of Input Channels 32 differential DC-coupled input channels Input Signal Range 0-5 VDC (voltage input); 0-20 mA (current input with 250Ω shunt) Resolution 12 bits Accuracy <0.15% of full-scale range (0°C to 60°C) Input Update Rate 55 ms for all channels Input Resistance Minimum 30 MΩ (DC) Power-off Resistance Typical 30 kΩ (DC) Common Mode Range -12 V to +12 V peak Common Mode Rejection -