NFAI143-S50

Overview

NFAI143-S50 is a Yokogawa analog input module with 16 isolated channels, supporting 4–20 mA signals and integrated transmitter power supply.

Identification

• Product ID: NFAI143-S50

• Model: NFAI143 Analog Input Module

• Type: Analog Input Module

• Suffix codes: –S Standard type, 5 No explosion protection, 0 Basic type

Channel & Signal Data

• Number of input channels: 16 isolated

• Input signal: 4–20 mA

• Allowable input current: 24 mA

• Input resistance: 250 Ω (power ON), ≥500 kΩ (power OFF)

• Accuracy: ±0.1% of full scale

• Temperature drift: Max ±0.01%/°C

Electrical Data

• Withstanding voltage: 1500 V AC for 1 min (between input and system)

• Overcurrent protection: Provided

• Transmitter power supply: 24.0–25.5 V, output current limit 25 mA

• 2-wire/4-wire transmitter setting: Configurable per channel via setting pin

• Maximum current consumption: 230 mA @ 5 V DC, 540 mA @ 24 V DC

Performance

• Data refresh cycle: 10 ms

• Input step response time: 100 ms

Mechanical Data

• Weight: 0.3 kg

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