AAI143-S50/A4S00

Overview

AAI143-S50/A4S00 is a Yokogawa 16-channel isolated analog input module supporting 4 to 20 mA signals, designed for precise multi-channel signal acquisition in industrial applications.

Input Specifications

• Number of Channels: 16 isolated

• Input Signal: 4 to 20 mA

• Allowable Input Current: 24 mA

• Input Resistance (Power ON): 270 Ω (20 mA) to 350 Ω (4 mA)

• Input Resistance (Power OFF): ≥ 500 kΩ

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

• Data Update Period: 10 ms

Accuracy & Stability

• Accuracy: ±16 µA

• Temperature Drift: ±16 µA per 10 °C

Transmitter Power Supply

• Voltage Range: 19.0 V to 25.5 V (output current limit: 25 mA)

• Transmitter Type Setting: 2-wire or 4-wire selectable per channel via setting pin

Suffix Codes

• -S: Standard type

• 5: No explosion protection

• 0: Basic type

Optional Code

• /A4S00: Includes Pressure Clamp Terminal Block (Model: ATA4S-00)

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