



Introduction — Reliable Analog Input for Core Process Control
The Yokogawa AAI143-S00 S1 Analog Input Module is engineered for stable, high-accuracy acquisition of analog signals across diverse industrial environments. As part of the AAI140 series, the S1 variant enhances operational reliability and diagnostic capability while maintaining a straightforward, non-HART analog input architecture. Ideal for process plants seeking dependable 4–20 mA and voltage input performance, the AAI143-S00 S1 ensures consistent measurement, low noise, and long-term stability within any distributed control system (DCS).
Technical Specifications — Electrical & Physical Characteristics
| Specification | Description |
|---|---|
| Module Type | 8-Channel Analog Input Module (S1 enhanced version) |
| Input Types | 4–20 mA, 0–20 mA, ±10 V DC |
| Channels | 8 isolated channels |
| Accuracy | ±0.1% of span |
| Input Impedance | 250 Ω (current) / 10 MΩ (voltage) |
| Update Speed | 10 ms per channel |
| Isolation | 1500 V AC (channel-to-system) |
| Power Requirement | 24 V DC nominal |
| Operating Temperature | –20°C to +70°C |
| Dimensions | 130 mm × 25 mm × 180 mm |
| Weight | ~0.30 kg |
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