Overview

The Yokogawa NFAI143-S50 is a current input module designed for industrial applications. It offers isolated input channels and supports various functions, making it a versatile choice for monitoring and control systems.

Technical Specifications

• Number of Input Channels: 16-channel input, isolated

• Input Signal: 4 to 20 mA

• Allowable Input Current: 24 mA

• Withstanding Voltage: 1500 V AC for 1 minute (between input and system)

• Overcurrent Protection: Provided

• Input Resistance:

  • Power ON: 250 Ω
  • Power OFF: 500 kΩ or more

• Accuracy: ±0.1% of full scale

• Data Refresh Cycle: 10 ms

• Input Step Response Time: 100 ms

• Transmitter Power Supply: 24.0 to 25.5 V (output current limit: 25 mA)

• Setting of 2-wire or 4-wire Transmitter: For each channel by setting pin

• Temperature Drift: Max. ±0.01%/°C

• Maximum Current Consumption:

  • 230 mA (5 V DC)
  • 540 mA (24 V DC)

• Weight: 0.3 kg

• External Connection: Pressure clamp terminal, MIL connector cable

• HART Communication: Available