Yokogawa AAI143-S50/ATA4S-00 Analog Input Module

Overview

The Yokogawa AAI143-S50/ATA4S-00 is a 16-channel isolated analog input module. It operates in CENTUM VP and CS 3000 distributed control systems. The module accepts 4–20 mA current signals. It features the ATA4S-00 terminal block with pressure clamp connections. This design guarantees secure, reliable field wiring. Therefore, it suits high-density signal acquisition requiring strong isolation and accuracy.

Technical Specifications

Model: AAI143-S50/ATA4S-00

• Input Type: Analog current input (4–20 mA)

• Channels: 16, individually isolated

• Input Resistance:

• Power ON: 270–350 Ω

• Power OFF: ≥ 500 kΩ

• Allowable Input Current: Up to 24 mA

• Accuracy: ±16 µA

• Withstand Voltage: 1500 V AC (input to system, 1 minute)

• Transmitter Power Supply: 19.0 to 25.5 V DC (max 25 mA per channel)

• Data Update Period: 10 ms

• Transmitter Setting: Configurable as 2-wire or 4-wire per channel

• Temperature Drift: ±16 µA per 10°C

• Power Consumption:

• 5 V DC: max 230 mA

• 24 V DC: max 540 mA

• Terminal Block: ATA4S-00 (pressure clamp type)

• Mounting: DIN rail or panel mount

• Operating Temperature: –20°C to +70°C

• Weight: 0.3 kg