Yokogawa AAI143-S50/A4S00 Analog Input Module

Model & Suffix Definition

• AAI143: Analog Input Module, 16-channel isolated, 4–20 mA input
• S: Standard type
• 5: No explosion-proof protection
• 0: Basic type
• /A4S00: Equipped with ATA4S-00 pressure clamp terminal block

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
• Current Consumption: Max 230 mA (5 V DC), 540 mA (24 V DC)
• External Connection: Pressure clamp terminal, MIL connector, dedicated cable
• Weight: 0.3 kg

Key Features

• 16 galvanically isolated analog input channels
• 4–20 mA standard process signal compatibility
• Standard industrial basic module design
• High isolation voltage and stable measurement performance
• Per-channel 2-wire / 4-wire transmitter configuration
• Equipped with ATA4S-00 pressure clamp terminal block
• Compact size and easy installation in control racks

Typical Applications

• Yokogawa CENTUM CS 3000 / VP distributed control systems
• Industrial process monitoring and analog signal acquisition
• Oil & gas, power generation, and chemical processing automation
• Field transmitter signal conditioning and conversion
• Factory automation and production control systems

Packaging List

• 1 × Yokogawa AAI143-S50/A4S00 analog input module
• 1 × ATA4S-00 pressure clamp terminal block
• Installation manual and product documentation

FAQ

1. What type of module is AAI143-S50/A4S00?

   It is a 16-channel isolated analog input module for 4–20 mA signals.

2. What is the /A4S00 option?

   It includes the ATA4S-00 pressure clamp terminal block for field wiring.

3. Does this module have explosion protection?

   No, suffix 5 means no explosion-proof design.

4. What is the input signal range?

   4 to 20 mA.

5. How many input channels does it provide?

   16 isolated input channels.