AAI143-S00 Yokogawa | Isolated Current Input Module

Yokogawa AAI143-S00 Analog Input Module

The Yokogawa AAI143-S00 processes sixteen 4-20mA signals with full channel isolation and a fast 10ms update period.

Input Channel Performance

• Channel Count: 16 fully isolated input channels
• Signal Standard: Standard 4 to 20 mA current loop input
• Sampling Speed: Rapid 10 ms data update cycle
• Safe Overload: Accepts up to 24 mA input current
• Measurement Precision: ±16 µA accuracy across the range

Electrical & Interface Details

• Isolation Protection: Withstands 1500 V AC between input and system
• Circuit Resistance: 270-350 Ω (Power ON) / >500 kΩ (Power OFF)
• Field Power Supply: Provides 19.0-25.5 V DC to transmitters (25 mA limit)
• Module Power Use: 230 mA at 5V DC and 540 mA at 24V DC
• Temperature Drift: Low ±16 µA per 10°C variation
• Module Weight: Lightweight design at approximately 0.3 kg

Product Model & Type

• Complete Model: Yokogawa AAI143-S00 Analog Input Module
• Series Base: AAI143 series for analog current input
• Suffix Code S: Indicates Standard type construction
• Suffix Code 0 (x2): Denotes Basic type configuration (fixed value)
• Wiring Method: Per-channel selection of 2-wire or 4-wire via setting pins

Common Questions

• How many signals can it handle? The AAI143-S00 accepts 16 separate 4-20mA signals.
• How quickly does it update data? It scans and updates all inputs every 10 milliseconds.
• What is the module's weight? This analog input module weighs approximately 0.3 kilograms.