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NFAI143-HEO

The Yokogawa NFAI143-HEO is an analog input module designed for industrial automation systems, specifically for use with Yokogawa's STARDOM and CENTUM series controllers. This module provides 16 isolated channels capable of receiving 4 to 20 mA input signals, ensuring accurate and reliable data acquisition in various applications.

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Key Specifications

Model: NFAI143-HEO

Type: Analog Input Module

Input Channels: 16

Input Signal: 4 to 20 mA

Input Resistance:

Power ON: Approximately 250 Ω

Power OFF: ≥500 kΩ

Allowable Input Current: Up to 24 mA

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

Overcurrent Protection: Provided

Accuracy: ±0.1% of reading (typical)

Resolution: 16 bits

Communication Protocols: HART (optional)

Mounting: DIN rail

Operating Temperature Range: -20°C to +70°C

Weight: Approximately 0.3 kg

✅ Features

Isolated Channels: Each input channel is electrically isolated, preventing ground loops and ensuring accurate measurements.

High Accuracy: Provides precise data acquisition with minimal error, suitable for critical applications.

Wide Input Range: Accommodates standard 4 to 20 mA signals, compatible with a variety of field devices.

Overcurrent Protection: Safeguards the module and connected devices from potential damage due to excessive current.

Flexible Communication: Optional HART communication allows for advanced diagnostics and configuration.