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Yokogawa NFAI143-S51 (16‑Channel Isolated Analog Input Module)

Product Introduction: A high‑density, isolated analog input module for Yokogawa CENTUM VP DCS, designed to accurately acquire 4–20 mA analog signals from field transmitters.

Technical Specifications:

  • Input Channels: 16 isolated channels
  • Input Signal: 4–20 mA DC

Detailed content

  • Isolation Voltage: 1500 V AC (channel‑to‑system)
  • Accuracy: ±0.05% of full scale
  • Common‑Mode Rejection Ratio (CMRR): ≥120 dB (50/60 Hz)
  • Operating Temperature: -20°C to 70°C
  • Power Supply: 24 V DC

    Functional Features:

  • 16‑channel high‑density design for efficient space utilization
  • Full galvanic isolation to eliminate ground loops and electrical interference
  • High accuracy and stability for precise process measurement
  • Built‑in noise filtering for reliable signal acquisition
  • Hot‑swappable design for easy installation and maintenance

    Application Scenarios:

    Large‑scale process monitoring systems in oil refineries, chemical plants, power stations, and water treatment facilities for collecting analog signals from a large number of field sensors.

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