Yokogawa AAI141-H50/K4A00 Analog Input Module

Model & Suffix Definition

• AAI141: Analog Input Module, 16‑channel non‑isolated, 4–20 mA input
• H: HART digital communication supported
• 5: No explosion‑proof protection
• 0: Basic type
• /K4A00: Equipped with KS Cable Interface Adapter

Core Specifications

• Input Channels: 16, non-isolated
• Input Signal: 4 to 20 mADC
• Maximum Allowable Input: 27 mA
• Input Resistance:
  • Power ON: 400 Ω at 20 mA, 1000 Ω at 4 mA
  • Power OFF: 500 kΩ or higher
• Accuracy: ±16 μA
• Data Update Period: 10 ms
• Step Response Time: 100 ms
• Transmitter Power Supply: 14.8 V min @20 mA, 26.4 V max @0 mA, current limit 27 mA
• Transmitter Type: 2‑wire / 4‑wire configurable per channel
• Temperature Drift: ±16 μA / 10 °C
• Current Consumption: Max 310 mA (5 V DC), 450 mA (24 V DC)
• External Connection: Pressure clamp terminal, KS cable, MIL connector cable
• HART Communication: Supported
• Weight: 0.2 kg

Key Features

• 16‑channel non‑isolated 4–20 mA analog input
• Built‑in HART communication capability
• Basic industrial performance for general applications
• Per‑channel 2‑wire / 4‑wire transmitter selection
• Fast data update and step response
• Includes KS cable interface adapter for terminal board connection
• Compact, lightweight construction
• Wide compatibility with Yokogawa DCS systems

Typical Applications

• Yokogawa CENTUM series distributed control systems
• Industrial process monitoring and analog signal acquisition
• Factory automation and machine control
• Analog data collection for power, chemical, and manufacturing plants
• Field transmitter signal interfacing

Packaging List

• 1 × Yokogawa AAI141-H50/K4A00 analog input module
• KS cable interface adapter
• Installation and wiring guide

FAQ

1. What type of module is the AAI141-H50/K4A00?

   It is a 16‑channel non‑isolated analog input module supporting 4–20 mA signals.

2. Does it support HART communication?

   Yes, HART protocol is fully supported.

3. What is the K4A00 option?

   It includes a KS cable interface adapter for terminal board connection.

4. Is this module isolated?

   No, it provides non‑isolated input channels.

5. What is the weight of the module?

   Approximately 0.2 kg.