Yokogawa AAI143-H03/K4A00 Analog Input Module

Overview

The Yokogawa AAI143-H03/K4A00 is a high-performance analog input module for CENTUM VP distributed control systems. It provides accurate acquisition of analog signals such as 4–20 mA current or 1–5 V DC voltage. With HART digital communication support, it ensures precise data transmission and reliable performance. Its rugged design and wide temperature tolerance make it ideal for process industries.

Technical Specifications

• Model: AAI143-H03/K4A00

• Type: Analog Input Module (16-channel, isolated)

• Input Channels: 16 isolated channels

• Input Signal Type: 4–20 mA current or 1–5 V DC voltage

• Allowable Input Current: 24 mA

• Accuracy: ±0.1% of reading or ±16 µA

• Response Time: 10 ms data update period

• Input Impedance: 250 Ω plus voltage drop from protection circuit

• Transmitter Power Supply: 19.0 V or higher at 20 mA, 25.5 V or less at 0 mA, max 25 mA output

• Communication Protocol: HART digital communication supported

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

• Power Consumption: 230 mA (5 V DC), 540 mA (24 V DC)

• Operating Temperature: –40°C to +80°C (ISA G3 option: –20°C to +70°C)

• Input Resistance: Power ON: 270 Ω (20 mA) to 350 Ω (4 mA); Power OFF: 500 kΩ or larger

• Dimensions: 107.5 × 94 × 32.8 mm

• Weight: 0.3 kg

• Cable Interface Adapter: KS type (for AEA4D terminal board, model ATK4A-00)