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.












