The Yokogawa AAI143-H50 is a high-density Analog Input Module developed for the CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). Functioning as a high-precision interface between field instrumentation and the control network, this module supports 16 channels of isolated current inputs. It is specifically designed to convert standard 4 to 20 mA signals from transmitters into digital data for real-time monitoring, ensuring that critical process variables are processed with the high resolution required for stable plant automation.
Technical Specifications
| Feature | Specification Details |
| Manufacturer | Yokogawa Electric Corporation |
| Model Number | AAI143-H50 |
| Number of Channels | 16, Isolated |
| Input Signal | 4 to 20 mA DC |
| Communication Support | HART Protocol (Digital) |
| Accuracy | ±0.1% of Full Scale |
| Input Impedance | 250 Ω (Nominal) |
| System Compatibility | CENTUM VP / CS 3000 FIO |
| Dimensions | 3.2 x 12.3 x 13.0 cm |
| Weight | 0.24 kg |
| Manufacturing Origin | Japan |
Key Industrial Applications
- Refinery Control: High-accuracy monitoring of temperature and pressure transmitters in processing units.
- Smart Device Management: Utilizing HART communication for remote instrument health monitoring and asset management.
- Power Generation: Interfacing with boiler and turbine instrumentation for precise PID control.
- Redundant Safety Loops: Implementation in high-availability DCS racks to ensure continuous operation during hardware maintenance.
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