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Yokogawa NFAI143 Analog Input Module (4 to 20mA,16-channel, Isolated)
SKU: NFAI143
In stock
Description

Description:

The NFAI143 Analog Input Module offers 16 isolated input channels designed to accept 4 to 20 mA signals. It comes with various suffix and option codes to accommodate different configurations and requirements.

Suffix Codes:

  • "S": Standard Type
  • "H": With HART Communication
  • "5": No explosion protection
  • "E": With explosion protection
  • "0": Basic type
  • "1": With ISA Standard G3 option

Option Codes:

  • "/A4S00": Equipped with Pressure Clamp Terminal Block for Analog [Model: NFTA4S-00]
  • "/A4S10": Equipped with Pressure Clamp Terminal Block for Analog with surge absorber [Model: NFTA4S-10]
  • "/CCC01": Includes Connector Cover for MIL Cable [Model: NFCCC01]

Current Input Modules (Isolated):

  • Accepts 16-channel input, all channels isolated
  • Input signal range: 4 to 20 mA
  • Allowable input current: Up to 24 mA
  • Withstanding voltage: 1500 V AC for 1 minute between input and system
  • Overcurrent protection: Provided
  • Input resistance: 250 Ω when powered on, 500 kΩ or more when powered off
  • 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: Configurable for each channel via setting pin
  • Temperature drift: Maximum ±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 (refer to "HART Communication Functions" for specifications)

Note:

  • When using this I/O module, ensure 24 V DC is supplied to an analog field power supply terminal of the power supply module.
  • A Zener barrier cannot be connected with this module. Use an isolation barrier when the module is applied in intrinsically safe applications.

 

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