




Introduction — Compact Analog Input for Industrial Control
The Yokogawa AAI143-S03 Analog Input Module is designed to provide accurate and reliable 4–20 mA signal acquisition for distributed control systems (DCS). With a compact 8-channel configuration, it delivers consistent process measurement and seamless integration into industrial automation systems. The S03 variant emphasizes straightforward installation and dependable performance, making it suitable for applications that require stable analog input without HART communication.
Technical Specifications — Performance & Physical Profile
| Specification | Description |
|---|---|
| Module Type | 8-channel Isolated Analog Input Module (Standard, non-HART) |
| Input Signal | 4–20 mA DC |
| Number of Channels | 8 isolated inputs |
| Input Impedance | 250 Ω |
| Accuracy | ±0.1% of span |
| Update Rate | 10 ms per channel |
| Isolation Voltage | 1500 V AC (input-to-system) |
| Power Supply | 24 V DC nominal |
| Operating Temperature | –25°C to +70°C |
| Dimensions | 130 mm × 25 mm × 180 mm |
| Weight | ~0.32 kg |
| Terminal Interface | Standard screw/pressure connection |
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale