Yokogawa AAI135-H00/K4A00 Analog Input Module

Overview

The Yokogawa AAI135-H00/K4A00 is a high-performance analog input module for CENTUM CS 3000 and VP systems. It acquires precise current signals (4–20 mA) from field instruments like pressure transmitters, temperature sensors, and flow meters. The module features 8 isolated input channels, ensuring reliable signal measurement even in harsh industrial environments. Integrated HART communication enables real-time digital monitoring and system integration. Its compact design and KS Cable Interface Adapter (ATK4A-00) simplify installation and maintenance.

Technical Specifications

• Model: AAI135-H00/K4A00

• Type: Analog Input Module (Current Input)

• Input Signal Range: 4 to 20 mA DC

• Number of Channels: 8 isolated input channels

• Allowable Input Current: Up to 25 mA

• Input Resistance:

• Power ON: 290–450 Ω

• Power OFF: ≥500 kΩ

• Withstanding Voltage: 500 V AC for 1 minute (between inputs and system, and between channels)

• Accuracy: ±16 µA

• Digital Communication: Supports HART protocol

• Option Code /K4A00: Includes KS Cable Interface Adapter (ATK4A-00)

• Dimensions: 3.7 cm × 13.8 cm × 12.1 cm

• Weight: 0.4 kg

• Application: Suitable for real-time process monitoring, control, and redundancy systems