Yokogawa AAI143-S00/K4A00 analog input module, supporting 24mA current input

The Yokogawa AAI143-S00/K4A00 is a specialized analog input module engineered to deliver reliable and precise data acquisition for industrial automation systems, with a primary focus on supporting 24mA current input—the industry-preferred signal standard for long-distance, low-interference transmission of sensor data.​

Designed for rugged industrial environments, this module ensures exceptional measurement accuracy, minimizing signal drift even in conditions with temperature fluctuations (-10°C to 60°C typical) and electromagnetic interference (EMI/RFI). Its robust construction enhances durability, making it suitable for critical applications where unplanned downtime is costly, such as oil & gas pipelines, petrochemical reactors, power generation turbines, and water treatment plants.​

A key advantage of the AAI143-S00/K4A00 is its seamless integration with Yokogawa’s distributed control systems (DCS), including the CENTUM VP series. This compatibility streamlines setup, configuration, and calibration via the DCS interface, reducing engineering effort and ensuring smooth communication between the module and central control units. The modular design also allows flexible scalability, enabling users to expand input capacity as process requirements evolve.​

In practical use, the module excels at capturing 24mA signals from essential industrial sensors (e.g., pressure, flow, temperature, and level sensors), converting them into actionable data for process monitoring and control. Its high mean time between failures (MTBF) and global support from Yokogawa’s service network further reinforce its reliability, making it a trusted choice for industries prioritizing precision, efficiency, and long-term operational stability.