
Product Description
Yokogawa SAI143-H53/STA4D-00 Current Input Module Overview
The Yokogawa SAI143-H53/STA4D-00 is an advanced 16-channel current input module engineered for high-integrity safety instrumented systems. Designed specifically for ProSafe-RS platforms, this module delivers precise 4-20mA analog signal acquisition with integrated HART communication protocol support, enabling simultaneous process monitoring and device diagnostics.
Technical Specifications
- Input Channels: 16 isolated current inputs
- Signal Range: 4-20mA DC analog current
- Communication Protocol: HART (Highway Addressable Remote Transducer)
- System Compatibility: ProSafe-RS SIL 2/3 safety systems
- Isolation: Channel-to-channel and channel-to-system isolation
- Accuracy: ±0.1% of full scale
- Response Time: <100ms per channel
- Operating Temperature: -40°C to +70°C
Application Scenarios
This current input module excels in critical process industries where safety and reliability are paramount. Deploy the SAI143-H53/STA4D-00 in emergency shutdown systems (ESD), fire and gas detection networks, burner management systems (BMS), and turbomachinery protection applications. The module's HART capability allows field device configuration and diagnostics without interrupting the 4-20mA control loop, reducing maintenance downtime in oil refineries, chemical plants, power generation facilities, and offshore platforms.
Solution Architecture
Integrate seamlessly with Yokogawa's ProSafe-RS distributed safety system architecture. The STA4D-00 termination assembly provides robust field wiring connections with built-in surge protection and EMI filtering. Each input channel features galvanic isolation to prevent ground loops and cross-channel interference, ensuring signal integrity in electrically noisy industrial environments. The module supports hot-swappable replacement during system operation, maintaining continuous safety function availability.
Key Advantages
Achieve superior diagnostic coverage through HART-enabled smart transmitter integration. The module continuously monitors input loop integrity, detecting open circuits, short circuits, and out-of-range conditions. Advanced self-diagnostics verify internal circuitry health and report anomalies to the safety controller. Compliance with IEC 61508 SIL 3 and IEC 61511 standards ensures the module meets stringent functional safety requirements for risk reduction in hazardous process applications.
Related Products
| Product | Description | Link |
|---|---|---|
| Yokogawa SAI143-H03 | 16-Channel 4-20mA Analog Input Module | View Product |
| Yokogawa SAI143-S53 | 16-Channel DCS Analog Input I/O Card | View Product |
| Yokogawa SAI143-H63 | 16-Channel 4-20mA Current Input Module | View Product |
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