AAI143-S50/A4S10

Overview

AAI143-S50/A4S10 is a 16-channel isolated analog input module from Yokogawa, designed for 4–20 mA signal acquisition. 

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Input Characteristics

• Number of Channels: 16, isolated

• Input Signal Range: 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

• Accuracy: ±16 µA

• Temperature Drift: ±16 µA per 10 °C

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Electrical Specifications

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

• Transmitter Power Supply:
  • ≥19.0 V at 20 mA
  • ≤25.5 V at 0 mA
  • Output current limit: 25 mA

• Transmitter Type Configuration: Selectable per channel (2-wire or 4-wire) via setting pin

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Performance

• Data Update Period: 10 ms

• Maximum Current Consumption:
  • 230 mA (5 V DC)
  • 540 mA (24 V DC)

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Mechanical

• Terminal Block: ATA4S-10 (pressure clamp type with surge absorber)

• Weight: 0.3 kg

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