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- Yokogawa
- SAI143-H33
- Analog Input Module
- Japan
- 107 mm × 130 mm × 32 mm
- 0.6kg
- Xiamen, China
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Industrial Analog Input Module – SAI143-H33
Product Overview
The SAI143-H33 is an industrial-grade analog input module designed for distributed process control systems and large-scale automation environments. It is used to acquire analog signals from field instruments and convert them into digital signals for monitoring, control, and data processing.
This model is optimized for stable performance in harsh industrial conditions, including electrical noise environments, high vibration areas, and continuous 24/7 operation scenarios. It is typically installed in rack-based control cabinets as part of a modular automation architecture.
The “H33” configuration generally represents a specific hardware revision designed for enhanced signal stability and compatibility within standardized analog input system frameworks.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | SAI143-H33 |
| Input Type | Analog current input (4–20 mA industrial standard) |
| Number of Channels | 16 channels |
| Input Range | 0–20 mA / 4–20 mA configurable |
| Signal Source | Field transmitters (pressure, flow, temperature, level) |
| Resolution | 16-bit equivalent precision |
| Conversion Method | Sequential multi-channel scanning |
| Isolation | Channel isolation + system isolation |
| Noise Immunity | High EMC resistance design |
| Signal Processing | Real-time sampling with cyclic refresh |
| Diagnostic Function | Open circuit detection, module health monitoring |
| Communication | Backplane rack communication bus |
| Power Supply | Supplied via system rack backplane |
| Mounting Type | Rack-mounted modular design |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity Range | 5% – 95% RH (non-condensing) |
| Protection Level | Industrial surge and EMI protection |
| Dimensions | Approx. 107 mm × 130 mm × 32 mm |
| Weight | Approx. 0.45 – 0.60 kg |
Product Introduction
The SAI143-H33 is designed to serve as a reliable analog signal acquisition unit in complex industrial automation systems. It collects low-level electrical signals from field devices and converts them into digital data for process control systems.
The module is engineered for continuous operation in environments where electrical interference, temperature variations, and mechanical stress are common. Its stable architecture ensures consistent performance even under long-term operational loads.
It is typically used as part of a modular control system where multiple input modules work together to form a complete process monitoring network.
Product Applications
The SAI143-H33 is widely used in industries requiring high reliability and accurate process data acquisition.
Typical applications include:
- Oil refining and petrochemical production facilities
- Natural gas processing and pipeline monitoring systems
- Power generation plants (thermal and energy systems)
- Water treatment and desalination plants
- Steel and heavy manufacturing industries
- Pharmaceutical and chemical production lines
- Large-scale distributed control and SCADA systems
In these environments, it plays a critical role in capturing real-time analog data from sensors and transmitting it to control systems for analysis and decision-making.
Product Advantages
The SAI143-H33 offers several key advantages in industrial environments:
- High channel density reduces cabinet space requirements
- Strong electromagnetic interference resistance ensures stable operation
- High-precision analog conversion improves measurement accuracy
- Designed for continuous 24/7 industrial operation
- Modular structure allows fast replacement and maintenance
- Built-in diagnostics improve system reliability and fault detection
- Low signal drift ensures long-term measurement stability
- Compatible with distributed control system architectures
Product Series Overview
The SAI143-H33 belongs to a modular analog input family used in industrial automation systems. This series is designed for scalable and reliable process data acquisition in complex industrial environments.
Key characteristics of the series include:
- Rack-mounted modular design
- Multi-channel analog signal acquisition capability
- High isolation between channels and system
- Designed for continuous industrial operation
- Expandable architecture for large-scale systems
- Integration with distributed control and monitoring platforms
Related Models (Same Series / Closely Related Variants)
| Model | Description | Channels | Signal Type | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| SAI141-H33 | Entry-level analog input module | 8–16 | 4–20 mA | 107×130×32 mm | 0.40 |
| SAI142-H33 | Enhanced isolation version | 16 | 4–20 mA | 107×130×32 mm | 0.45 |
| SAI143-H33 | Standard high-density module | 16 | 4–20 mA | 107×130×32 mm | 0.50 |
| SAI144-H33 | High-speed sampling version | 16 | Multi-range analog | 107×130×32 mm | 0.52 |
| SAI145-H33 | Advanced diagnostics module | 16 | 4–20 mA with diagnostics | 107×130×32 mm | 0.58 |
Popular Models (Same Manufacturer Industrial Portfolio)
| Model | Product Type | Function | Dimensions | Weight (kg) |
|---|---|---|---|---|
| AAI141 | Analog input module | Standard process signal acquisition | 100×120×30 mm | 0.40 |
| AAI543 | High precision AI module | Accurate measurement processing | 100×120×30 mm | 0.42 |
| AAR181 | Analog output module | Process control output signals | 100×120×30 mm | 0.40 |
| ADI151 | Digital input module | Discrete signal acquisition | 110×130×30 mm | 0.45 |
| ADV551 | Digital output module | Control signal execution | 110×130×30 mm | 0.45 |
Final Summary
The SAI143-H33 is a robust analog input module designed for demanding industrial automation environments. It provides stable multi-channel signal acquisition, strong noise resistance, and accurate analog-to-digital conversion for continuous process monitoring.
Its modular structure, diagnostic capability, and long-term operational stability make it suitable for large-scale industrial systems requiring reliable and uninterrupted data acquisition.