Yokogawa AAI143-H50/K4A00 Analog Input Module

Model & Suffix Definition

• AAI143: Analog Input Module, 16-channel isolated, 4–20 mA input
• H: HART digital communication supported
• 5: No explosion-proof protection
• 0: Standard basic type
• /K4A00: Equipped with ATK4A-00 KS cable interface adapter for AEA4D terminal board

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: Screw terminals, MIL connector, dedicated KS1 cable
• HART Communication: Supported
• Weight: 0.3 kg

Key Features

• 16 galvanically isolated analog input channels
• 4–20 mA standard process signal input
• Built-in HART communication function
• Basic industrial-grade performance
• Per-channel 2-wire / 4-wire transmitter selection
• High isolation voltage and reliable stability
• Includes ATK4A-00 KS cable adapter for easy wiring
• Compact and lightweight module design

Typical Applications

• Yokogawa CENTUM series DCS systems
• Industrial process monitoring and control
• Analog signal acquisition for oil & gas, power, and chemical plants
• Field transmitter signal conditioning
• Stable data acquisition in factory automation

Packaging List

• 1 × Yokogawa AAI143-H50/K4A00 analog input module
• 1 × ATK4A-00 KS cable interface adapter
• User manual and installation guide

FAQ

1. What signal does the AAI143-H50/K4A00 accept?

   It accepts 4–20 mA analog input with 16 isolated channels.

2. Does this module support HART?

   Yes, HART communication is fully supported.

3. What is the K4A00 option?

   It includes the ATK4A-00 adapter for connecting to an AEA4D terminal board.

4. What is the operating power consumption?

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

5. How much does the module weigh?

   Approximately 0.3 kg.