The Yokogawa SAI143-H33 S2 is a high-density analog input module designed for seamless integration within the CENTUM VP distributed control system and the ProSafe-RS safety instrumented system. This module functions as a primary interface for gathering continuous signals from field instrumentation, converting physical process variables into high-resolution digital data. It is specifically engineered to handle 16 channels of isolated analog inputs, ensuring that large-scale industrial operations can monitor critical parameters such as flow, pressure, and temperature with minimal rack space requirements.
Technical Specifications
| Feature | Specification Details |
| Manufacturer | Yokogawa Electric Corporation |
| Model Number | SAI143-H33 S2 |
| Input Channels | 16-Channel Isolated Inputs |
| Input Signal Range | 4 to 20 mA |
| System Compatibility | CENTUM VP / ProSafe-RS |
| Dimensions | 3.3 x 10.7 x 13.0 cm |
| Weight | 0.3 kg |
| Operating Temperature | 0 to 60°C |
| Country of Origin | Japan |
| Hardware Revision | S2 (Enhanced Reliability) |
Core Applications
- Refining and Petrochemicals: Real-time monitoring of reactor pressure and furnace temperatures.
- Safety Instrumented Systems (SIS): Providing high-integrity data for emergency shutdown (ESD) logic.
- Power Plant Automation: Interfacing with boiler feed-water and steam pressure transmitters.
- Legacy Support: Reliable replacement for aging SAI143 units in existing CENTUM installations.
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