



Yokogawa AAI543-H03/K4A00 Analog Output Module
Introduction — HART-Enabled Analog Output with Flexible Wiring
The Yokogawa AAI543-H03/K4A00 Analog Output Module is a robust 16-channel HART-enabled solution designed for distributed control systems (DCS). It delivers precise 4–20 mA signals to control valves, actuators, and other field devices. The K4A00 variant features a KS-Cable interface, offering flexible and reliable wiring connections, making installation, maintenance, and retrofitting simple. This module is ideal for industrial environments requiring high reliability, advanced diagnostics, and smart communication for mission-critical control loops.
Technical Specifications — Performance & Physical Profile
| Specification | Description |
|---|---|
| Module Type | 16-channel Isolated Analog Output Module (HART-enabled, K4A00 variant) |
| Output Signal | 4–20 mA DC per channel |
| Number of Channels | 16 isolated outputs |
| Load Resistance | 0–750 Ω per channel |
| Open Circuit Detection | <0.65 mA |
| Accuracy | ±48 µA (~0.1% of span) |
| Update Rate | ~10 ms per channel |
| Isolation Voltage | 1500 V AC (output-to-system) |
| Power Supply | 24 V DC nominal |
| Operating Temperature | –25°C to +75°C |
| Dimensions | 130 mm × 25 mm × 180 mm |
| Weight | ~0.35 kg |
| Communication Protocol | HART (two-way digital communication over analog loops) |
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