



Introduction — Precision HART Input for High-Reliability Control Systems
The Yokogawa AAI143-H53/A4S00 Analog Input Module is engineered for plants that demand uncompromising accuracy, HART-enabled intelligence, and long-term operational stability. Part of the trusted CENTUM DCS architecture, this module delivers dependable 4–20 mA signal acquisition while providing real-time HART diagnostics and enhanced device insight.
The A4S00 variant features a single pressure-clamp terminal block, offering excellent wiring durability and simplified installation. For facilities focused on stable, maintenance-friendly measurement, the AAI143-H53/A4S00 serves as a reliable cornerstone for process automation.
Technical Specifications — Electrical, Functional & Physical Details
| Specification | Description |
|---|---|
| Module Type | 16-Channel HART Analog Input Module (A4S00 terminal type) |
| Input Signal Range | 4–20 mA DC |
| Number of Channels | 16 isolated analog inputs |
| Input Impedance | 270–350 Ω (depending on current level) |
| Accuracy | ±16 µA |
| Update Period | 10 ms per channel |
| Transmitter Power Supply | 19–25.5 V DC, up to 25 mA per channel |
| Isolation | 1500 V AC (input-to-system) |
| Temperature Drift | ±16 µA per 10°C |
| Module Power Consumption | 5 V DC @ 230 mA or 24 V DC @ 540 mA |
| Dimensions | 130 mm × 25 mm × 180 mm |
| Weight | ~0.30 kg |
| Terminal Type | A4S00 — Single pressure-clamp wiring block |
| Communication | HART-enabled (bi-directional digital communication) |
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