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- Yokogawa
- SAI143-H03
- Analog Input Module
- Japan
- 107 mm × 130 mm × 32 mm
- 0.6kg
- Xiamen, China
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Industrial Analog Input Module – SAI143-H03
Product Overview
The SAI143-H03 is an industrial-grade analog input module designed for high-precision signal acquisition in process automation environments. It is used to convert analog signals from field instruments into digital data that can be processed by distributed control and monitoring systems.
This model is widely applied in continuous industrial operations where signal stability, electrical isolation, and long-term reliability are critical. It is engineered for harsh environments with electrical noise, temperature fluctuations, and demanding operational cycles.
The module is typically installed in rack-based control systems and works as part of a larger automation architecture used for real-time monitoring and process optimization.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | SAI143-H03 |
| Input Type | Analog current input (4–20 mA standard) |
| Number of Channels | 16 channels |
| Signal Range | 0–20 mA / 4–20 mA configurable |
| Input Impedance | Low impedance design for stable acquisition |
| Isolation | Channel-to-channel and system isolation |
| Resolution | 16-bit equivalent or higher |
| Conversion Method | Sequential multi-channel scanning |
| Update Cycle | High-speed cyclic sampling |
| Communication | Backplane / system rack bus |
| Diagnostic Function | Line fault detection and module status monitoring |
| Power Supply | Supplied via system rack (DC backplane power) |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | 5% – 95% RH (non-condensing) |
| EMC Protection | High-level industrial electromagnetic resistance |
| Mounting Type | Rack-mounted modular installation |
| Dimensions | Approx. 107 mm × 130 mm × 32 mm |
| Weight | Approx. 0.45 – 0.60 kg |
Product Introduction
The SAI143-H03 is designed as a precision analog input solution for distributed control environments. It collects electrical signals from field devices such as transmitters, sensors, and analyzers, and converts them into digital data for system-level processing.
Its architecture emphasizes signal integrity, allowing it to operate reliably even in electrically noisy environments such as power stations, petrochemical plants, and heavy manufacturing facilities.
The module is optimized for continuous operation and supports hot-swappable maintenance in many system configurations, reducing downtime during industrial operations.
Product Applications
SAI143-H03 is widely used in industries requiring stable and accurate process data acquisition.
Typical application areas include:
- Petrochemical refining and gas processing plants
- Thermal power generation and energy distribution systems
- Water treatment and desalination facilities
- Steel production and metallurgical processing
- Pharmaceutical manufacturing environments
- Large-scale automated production lines
- Process monitoring and SCADA-based systems
In these environments, the module plays a critical role in ensuring accurate measurement of pressure, temperature, flow rate, and level signals.
Product Advantages
The SAI143-H03 offers several technical and operational advantages that make it suitable for demanding industrial use:
- High channel density reduces cabinet and rack space requirements
- Strong electrical isolation improves system safety and stability
- Stable signal conversion with minimal drift over long operation cycles
- High resistance to electromagnetic interference
- Modular architecture simplifies replacement and maintenance
- Continuous 24/7 operational reliability
- Built-in diagnostics enhance fault detection and system uptime
- Compatible with distributed control system architectures
Product Series Overview
The SAI143-H03 belongs to a family of modular analog input units used in industrial automation systems. This series is designed for scalable process control applications where multiple analog signals must be collected simultaneously.
Key characteristics of the series include:
- Rack-mounted modular structure
- Multi-channel analog signal acquisition capability
- Industrial-grade isolation between channels
- Designed for integration into distributed control systems
- Expandable configuration for large industrial plants
- High reliability under continuous operation conditions
Related Models (Same Series or Closely Related)
| Model | Description | Channels | Signal Type | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| SAI141-H03 | Entry-level analog input module | 8–16 | 4–20 mA | 107×130×32 mm | 0.40 |
| SAI142-H03 | Enhanced isolation input module | 16 | 4–20 mA | 107×130×32 mm | 0.45 |
| SAI143-H03 | Standard high-density AI module | 16 | 4–20 mA | 107×130×32 mm | 0.50 |
| SAI144-H03 | High-speed sampling version | 16 | Multi-range analog | 107×130×32 mm | 0.52 |
| SAI145-H03 | Advanced diagnostics version | 16 | 4–20 mA with diagnostics | 107×130×32 mm | 0.55 |
Popular Models (Same Brand Industrial Portfolio)
| Model | Product Type | Function | Dimensions | Weight (kg) |
|---|---|---|---|---|
| AAI141 | Analog input module | Standard signal acquisition | 100×120×30 mm | 0.40 |
| AAI543 | High-accuracy AI module | Precision process measurement | 100×120×30 mm | 0.42 |
| AAR181 | Analog output module | Control signal output | 100×120×30 mm | 0.40 |
| ADI151 | Digital input module | Discrete signal acquisition | 110×130×30 mm | 0.45 |
| ADV551 | Digital output module | Process control output | 110×130×30 mm | 0.45 |
Summary
The SAI143-H03 is a robust analog input module designed for demanding industrial automation environments. It provides stable multi-channel signal acquisition, strong noise immunity, and reliable long-term operation.
Its modular design, diagnostic capabilities, and high-density configuration make it suitable for large-scale process control systems where accuracy and uptime are essential.
The model is widely used in critical infrastructure and industrial plants where continuous monitoring and precise data acquisition are required.