Description

Yokogawa AAI143‑S00 Analog Input Module

Core Specifications

Basic Identity

• Model: AAI143‑S00
• Series: CENTUM VP / ProSafe‑RS
• Type: Isolated analog input (current)
• Channels: 16, fully isolated
• Input Signal: 4–20 mA DC
• HART: Supported (per channel)
• Suffix: S = Standard; 0 = Basic version

Electrical

• Input Resistance: 270 Ω (20 mA) to 350 Ω (4 mA)
• Accuracy: ±16 µA
• Temperature Drift: ±16 µA / 10 °C
• Data Update Period: 10 ms
• Isolation: 1500 V AC (1 min) between input and system
• Transmitter Power: 19.0–25.5 V DC (current limit: 25 mA)
• 2‑wire / 4‑wire: Configurable per channel via DIP switch

Power Consumption

• 5 V DC (internal): 230 mA
• 24 V DC (external): 540 mA

Physical

• Weight: ~0.3 kg
• Connectors: Pressure clamp / MIL connector / dedicated KS1 cable
• Operating Temp: 0–50 °C
• Humidity: 5–95% RH (non‑condensing)

Key Features

• 16‑channel isolation: High noise immunity and safety
• HART support: Digital communication with field transmitters
• Transmitter power supply: Eliminates need for external power supplies
• Per‑channel configuration: 2‑wire / 4‑wire selectable
• High accuracy: ±16 µA for precise process measurement
• Fast update: 10 ms for real‑time control