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NFAI841-S50

The Yokogawa NFAI841-S50 is an 8-channel analog I/O module designed for use in Yokogawa's STARDOM FCN-RTU distributed control systems. This module facilitates the integration of field devices with 4 to 20 mA DC signals into control systems, providing precise signal conversion and real-time data processing.

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Key Specifications

Model: NFAI841-S50

Type: Analog Input/Output Module

Number of Channels: 8 (4 inputs, 4 outputs)

Input Signal Type: 4 to 20 mA DC

Output Signal Type: 4 to 20 mA DC

Input Accuracy: ±0.1% of full scale

Input Impedance:

250 Ω (when powered on)

500 kΩ or more (when powered off)

Overcurrent Protection: Provided

Circuit Open Detection: ±0.3% of full scale

Data Refresh Cycle: 10 ms

Input Step Response Time: 100 ms

Output Step Response Time: 40 ms

Power Supply: 24 V DC

Power Consumption: 3 W

Operating Temperature: -40°C to +85°C

Ingress Protection: IP66

Dimensions: 35 mm (W) × 110 mm (H) × 58 mm (D)

Weight: Approximately 200 g

✅ Features

Non-Isolated Design: Simplifies wiring and reduces installation costs.

High Accuracy: Ensures precise signal conversion with minimal deviation.

Fast Data Processing: Offers quick response times suitable for real-time applications.

Wide Operating Temperature Range: Suitable for deployment in various environmental conditions.

Compact Size: Facilitates easy integration into existing systems.