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Phone: +86 16626708626Description
The YOKOGAWA AAI141-H50 S2 is an analog input module designed for use in Yokogawa’s distributed control systems, such as the CENTUM CS 3000 and CENTUM VP platforms. This module supports eight configurable input channels, capable of handling a wide variety of industrial signal types including 4-20 mA current loops and thermocouples (Type K, J, T, E, and others), making it highly versatile in process measurement applications. It is especially suited for industries requiring high precision and reliable data acquisition, such as power plants, chemical processing, and manufacturing where process stability hinges on accurate sensor input. The AAI141-H50 S2 stands out for its fast response time and high accuracy, key for time-sensitive control environments.
The YOKOGAWA AAI141-H50 S2 module features 8 isolated analog input channels, each capable of reading current, voltage, or thermocouple signals. The isolation prevents cross-channel interference and ground loops, ensuring signal integrity in electrically noisy industrial environments. It supports fast data update periods typically less than 10 milliseconds, making it suitable for critical control loops and rapid process changes. The module’s input range covers standard industrial signals like 4-20 mA, with a maximum allowable input current of around 25 mA, along with voltage input options up to ±7.5 V. Its integration into Yokogawa’s ESB bus node units ensures seamless communication with host controllers, simplifying system architecture while maintaining rugged performance in harsh industrial conditions.
- AAI141-H50 S2
Technically, the AAI141-H50 S2 offers excellent accuracy, commonly within ±0.1% of full scale, and a data refresh rate below 0.5 seconds for real-time process monitoring. The module supports HART communication on current input channels, allowing enhanced diagnostics and remote configuration of field instruments, which improves maintenance efficiency. Its design allows for easy replacement and servicing within compact node units (such as ANB10S or ANB11S), optimizing cabinet space. The module’s broad compatibility with sensor types and robust isolation measures make it an invaluable component for ensuring reliable, high-fidelity analog data processing in sophisticated automated control systems.
| Parameter | Value |
|---|---|
| Model | AAI141-H50 S2 |
| Brand | Yokogawa |
| Type | 8-Channel Analog Input Module |
| Input Signal Types | 4-20 mA current loop; Voltage ±7.5 V; Thermocouples (K, J, T, E, etc.) |
| Input Channels | 8 isolated input channels |
| Maximum Input Current | Approx. 25 mA |
| Accuracy | Typically ±0.1% full scale |
| Data Update Period | < 10 ms |
| HART Support | Yes, on current input channels |
| Isolation | Channel-to-channel and system isolation |
| Mounting | ESB bus node units (ANB10S, ANB11S, ANB10D, ANB11D) |
| Application Systems | CENTUM CS 3000, CENTUM VP Distributed Control Systems |
| Operating Temperature | Typically 0 to 55°C |
| Weight | Approximately 0.4 kg |
Related modules for the AAI141-H50 S2 include Yokogawa’s analog output modules for control actuation, digital I/O modules for integrated discrete control functions, and thermocouple-specific input modules for enhanced temperature measurements. This module is compatible with Yokogawa’s node units that facilitate scalable and modular control architectures.
During installation, care must be taken to maintain proper grounding and use shielded cables to minimize electromagnetic interference that can degrade analog signal accuracy. Adequate ventilation within control cabinets ensures optimal operating temperature for the module. Regular system diagnostics and calibration checks using Yokogawa’s engineering tools help maintain signal accuracy over time. Firmware updates and configuration parameters should be managed via Yokogawa’s authorized software platforms to safeguard control system integrity.
