TRICONEX 3700A

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TRICONEX 3700A

  1. Product NameTRICONEX 3700A TMR Analog Input Module
  2. Product DescriptionThe TRICONEX 3700A is a high-performance analog input module developed by Triconex (a brand under Invensys) and is a core component of Triconex Safety Instrumented Systems (SIS). It is specifically designed for high-precision acquisition of analog signals in safety-critical industrial processes, such as temperature, pressure, and flow in fields like oil and gas, chemical processing, and power generation.
    Adopting the classic Triple Modular Redundancy (TMR) architecture, the module ensures outstanding fault tolerance. Even if a single channel or component malfunctions, it can still maintain stable operation to avoid interruptions to critical production processes. It comes with 32 differential DC-coupled input channels, and its excellent common-mode rejection capability enables reliable signal acquisition in noisy industrial environments. Additionally, the module is equipped with comprehensive self-diagnostic functions that can real-time monitor the status of each channel, isolate abnormal channels automatically when faults occur, and send alarm signals to the main processor. It complies with the SIL3 safety standard and IEC 61508 requirements, and its rugged industrial design allows it to adapt to harsh on-site working conditions, facilitating seamless integration with Triconex system racks for easy installation and maintenance.
  3. TRICONEX 3700A
  4. Product Parameters & Specifications
    Parameter Categories Specific Specifications
    Input Performance Input channels: 32 differential DC-coupled channels; Input signal range: 0 – 5 VDC; Resolution: 12 bits; Accuracy: < 0.15% of FSR (from 0°C to 60°C); Input update rate: 55 ms
    Electrical Characteristics Minimum input resistance (DC): 30 MΩ; Typical power-off resistance (DC): 30 kΩ; Common mode rejection: -80 dB (DC – 100 Hz, typical); Common mode range: -12 V to +12 V peak; Typical leg-to-leg isolation: 200 kΩ; Input over-range protection: 150 VDC / 115 VAC continuous
    Power Supply Maximum power consumption: 10 W
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