AAI135-H00/K4A00 | Yokogawa | Analog Input Module

Description

The Yokogawa AAI135‑H00/K4A00 Analog Input Module is designed for precise current signal acquisition in process automation systems. With 8 isolated input channels supporting 4–20 mA signals, it ensures high accuracy, HART communication capability, and robust isolation for reliable integration into CENTUM VP and ProSafe‑RS platforms.

Specifications

• Manufacturer: Yokogawa

• Product No.: AAI135‑H00/K4A00

• Product Type: Analog Input Module (Current Input)

• Model: AAI135 – 8‑channel, isolated analog input (4–20 mA)

• Suffix Codes:

  • H00: Basic type with HART protocol support

• Option Code: K4A00 – KS Cable Interface Adapter (Model ATK4A‑00)

• Number of Channels: 8 isolated input channels

• Signal Type: 4–20 mA DC

• Allowable Input Current: 25 mA

• Withstanding Voltage:

  • Input ↔ System: 500 V AC, 1 minute

  • Input ↔ Input channels: 500 V AC, 1 minute

• Input Resistance:

  • Power ON: 290 Ω (20 mA) to 450 Ω (4 mA)

  • Power OFF: ≥500 kΩ

• Accuracy: ±16 µA

• Weight: 0.3 kg

• Shipping Weight: 2 kg

Features

• High Accuracy: ±16 µA precision for stable current measurement

• Channel Isolation: Each input channel isolated from system and other channels

• HART Communication: Supports digital communication with smart transmitters

• Flexible Connectivity: KS cable interface adapter for reliable wiring

• Industrial Durability: Built for continuous duty in demanding environments

• Seamless Integration: Compatible with Yokogawa CENTUM VP and ProSafe‑RS systems