Yokogawa AAI143-H00/A4S10 Analog Input Module

Overview

The Yokogawa AAI143-H00/A4S10 is a 16-channel isolated analog input module designed for CENTUM VP and other Yokogawa DCS platforms. It accurately receives 4–20 mA DC signals from field transmitters and quickly converts them into digital values for real-time monitoring and control. Each channel is individually isolated, ensuring high signal integrity and noise immunity. Additionally, it supports HART communication, enabling diagnostics and configuration for smart field devices.

Technical Specifications

• Model: AAI143-H00/A4S10

• Input Channels: 16 isolated channels

• Input Signal Type: 4 to 20 mA DC

• Allowable Input Current: Up to 24 mA

• Input Resistance:

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

• Power OFF: ≥ 500 kΩ

• Accuracy: ±16 µA

• Temperature Drift: ±16 µA per 10°C

• Data Update Period: 10 ms

• Transmitter Power Supply:

• Voltage: 19.0 to 25.5 V DC

• Current Limit: 25 mA per channel

• Withstanding Voltage: 1500 V AC, input to system, for 1 minute

• 2-/4-Wire Configuration: Selectable per channel using setting pin

• HART Communication: Supported

• Terminal Type: Pressure clamp terminal block (A4S10) with surge absorber

• Power Consumption:

• 5 V DC: 230 mA

• 24 V DC: 540 mA

• Weight: 0.3 kg