Yokogawa AAI143-S50 Analog Input Module

Model & Suffix Definition

• AAI143: Analog Input Module, 16-channel isolated, 4–20 mA
• S: Standard type
• 5: No explosion-proof protection
• 0: Basic type

Core Specifications

• Input Channels: 16, isolated
• Input Signal: 4 to 20 mA
• Maximum Allowable Input Current: 24 mA
• Withstanding Voltage: 1500 V AC for 1 minute (input to system)
• Input Resistance:
  • Power ON: 270 Ω (20 mA) to 350 Ω (4 mA)
  • Power OFF: 500 kΩ or higher
• Accuracy: ±16 µA
• Data Update Period: 10 ms
• Transmitter Power Supply: 19.0 V min @20 mA, 25.5 V max @0 mA, current limit 25 mA
• Transmitter Configuration: 2-wire / 4-wire selectable per channel
• Temperature Drift: ±16 µA / 10 °C
• Maximum Current Consumption: 230 mA (5 V DC), 540 mA (24 V DC)
• External Connection: Pressure clamp terminal, MIL connector cable, dedicated KS1 cable
• Weight: 0.3 kg

Key Features

• 16 galvanically isolated analog input channels
• Standard industrial performance for general applications
• Supports both 2-wire and 4-wire transmitters
• High isolation voltage and strong anti-interference ability
• Compact and lightweight module design
• Wide compatibility with Yokogawa DCS systems

Typical Applications

• Yokogawa CENTUM CS 3000 / VP DCS systems
• Industrial process monitoring and control
• Analog signal acquisition for field transmitters
• Petrochemical, power, and manufacturing automation
• General factory automation systems

Packaging List

• 1 × Yokogawa AAI143-S50 analog input module
• User manual and installation guide

FAQ

1. What type of module is AAI143-S50?

   It is a 16-channel isolated analog input module.

2. What input signal does it support?

   It supports 4 to 20 mA.

3. Is the input isolated?

   Yes, all 16 channels are isolated.

4. What is the operating voltage consumption?

   Max 230 mA at 5 V DC and 540 mA at 24 V DC.

5. What is the weight?

   Approximately 0.3 kg.