Overview

The YOKOGAWA NFAI835-S50 Analog Input/Output Module is a versatile device designed for industrial automation applications. It provides both input and output channels for analog signals, making it suitable for various process control tasks.

Technical Specifications

General

• Model: NFAI835-S50
• Number of I/O Channels: 4-channel input/4-channel output, isolated channels
• I/O Signal:
  • Input: 4 to 20 mA
  • Output: 4 to 20 mA
• Allowable Input Current: 25 mA
• Overcurrent Protection: Provided
• Withstanding Voltage:
  • Between input/output and system: 500 V AC for 1 minute
  • Between channels: 500 V AC for 1 minute
• Input Resistance:
  • Power ON: 250 Ω
  • Power OFF: 500 kΩ or more
• Allowable Load Resistance: 0 to 750 Ω
• Circuit-Open Detection: 0.65 mA or less
• Accuracy:
  • Inputs: ±0.1% of full scale
  • Outputs: ±0.3% of full scale
• Data Refresh Cycle: 10 ms
• Input Step Response Time: 100 ms
• Output Step Response Time: 100 ms
• Output Fallback: Set for each channel
• Transmitter Power Supply: 20.2 to 29.3 V
• Temperature Drift: Max. ±0.01%/°C
• Maximum Current Consumption:
  • 360 mA (5 V DC)
  • 450 mA (24 V DC)
• Weight: 0.3 kg
• External Connection: Pressure clamp terminal, MIL connector cable