Yokogawa AAI143-H03 Analog Input Module

Overview

The Yokogawa AAI143-H03 is a high-precision analog input module for industrial automation systems. It integrates seamlessly with CENTUM VP and other Yokogawa distributed control platforms. The module acquires 4–20 mA signals from field instruments with high accuracy. It supports HART protocol, enabling advanced diagnostics, configuration, and status monitoring. Engineered for harsh environments, it operates reliably from –20°C to +70°C. With 16 isolated channels, it ensures safe and accurate signal processing.

Technical Specifications

• Model: AAI143-H03

• Type: Analog Input Module

• Input Signal: 4–20 mA DC

• Number of Channels: 16 isolated channels

• Allowable Input Current: Up to 24 mA

• Input Resistance: 270–350 Ω (Power ON), 500 kΩ or higher (Power OFF)

• Accuracy: ±16 µA

• Data Update Period: 10 ms

• Transmitter Power Supply: 19.0 V or higher at 20 mA, 25.5 V or less at 0 mA

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

• Temperature Drift: ±16 µA per 10°C change

• Maximum Current Consumption: 230 mA at 5 V DC, 540 mA at 24 V DC

• Communication: HART digital communication supported

• Environmental Rating: ISA Standard G3 compliant

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

• Mounting: Rack-mounted in Yokogawa control system

• External Connection: Pressure clamp terminal, KS cable, MIL connector cable

• Weight: 0.53 lbs