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- Yokogawa
- SAI143
- Analog Input Module
- Japan
- 107 mm × 130 mm × 32 mm
- 0.6kg
- Xiamen, China
- New & In Stock
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Industrial Automation Analog Input Module – SAI143
Product Overview
SAI143 is an analog input module designed for industrial process control systems. It is used to acquire and convert electrical analog signals from field instruments into digital data for control and monitoring systems. The module is typically applied in high-reliability environments such as chemical plants, power generation facilities, oil & gas operations, and large-scale manufacturing lines.
The design focuses on signal stability, noise resistance, and seamless integration into distributed control architectures. It supports multiple input channels and is built for continuous 24/7 operation in harsh industrial environments.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | SAI143 |
| Input Type | Analog current input (typical 4–20 mA) |
| Number of Channels | 16 channels (typical configuration) |
| Signal Isolation | Channel-to-channel and system isolation |
| Resolution | 16-bit or higher equivalent |
| Sampling Type | Multi-channel scanning |
| Communication Interface | Backplane system bus |
| Power Supply | DC system power (module supplied via rack/backplane) |
| Operating Temperature | -20°C to +60°C (industrial grade range) |
| Humidity Range | 5% – 95% RH (non-condensing) |
| Mounting Type | Rack-mounted module |
| Dimensions | Approx. 107 mm × 130 mm × 32 mm |
| Weight | Approx. 0.4 – 0.6 kg |
| Protection Level | Industrial EMC protection, surge resistance |
Product Applications
SAI143 is widely used in process industries where accurate analog signal acquisition is required. It connects field transmitters such as pressure sensors, temperature transmitters, flow meters, and level instruments to centralized control systems.
Typical application scenarios include:
- Oil refining and petrochemical processing plants
- Thermal and nuclear power stations
- Water treatment and wastewater management systems
- Steel and metal processing industries
- Pharmaceutical production lines
- Large-scale automation and distributed control systems
The module plays a key role in real-time monitoring, process optimization, and safety control systems.
Product Advantages
SAI143 is designed to deliver stable and reliable performance in demanding industrial environments. Its main advantages include:
- High channel density, reducing system rack space requirements
- Strong anti-interference capability for noisy industrial environments
- Reliable continuous operation suitable for 24/7 processes
- High-precision signal conversion for accurate process control
- Modular structure allowing easy replacement and maintenance
- Stable long-term performance with low drift characteristics
- Compatibility with distributed control system architecture
Product Series
SAI143 belongs to a family of analog input modules used in distributed control and automation systems. This series generally includes multiple variants designed for different signal types and application requirements.
Common characteristics of the series include:
- Modular rack-based installation
- Multi-channel analog signal acquisition
- High isolation design for industrial safety
- Compatibility with process automation platforms
- Expandable architecture for large-scale systems
Related Models (Same Series / Closely Related Modules)
| Model | Description | Channels | Signal Type | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| SAI141 | Basic analog input module | 8–16 | 4–20 mA / voltage | Approx. 107×130×32 mm | 0.4 |
| SAI142 | Enhanced isolation version | 16 | 4–20 mA | Approx. 107×130×32 mm | 0.45 |
| SAI143 | Standard high-density AI module | 16 | 4–20 mA | Approx. 107×130×32 mm | 0.5 |
| SAI144 | High-speed sampling variant | 16 | Multi-range analog | Approx. 107×130×32 mm | 0.5 |
| SAI145 | Extended diagnostics version | 16 | 4–20 mA with diagnostics | Approx. 107×130×32 mm | 0.55 |
Popular Models (Same Manufacturer – Industrial Automation Portfolio)
| Model | Product Type | Key Function | Dimensions | Weight (kg) |
|---|---|---|---|---|
| AIH16 | Analog input module | High-precision signal acquisition | Approx. 100×120×30 mm | 0.4 |
| AOH16 | Analog output module | Signal control output | Approx. 100×120×30 mm | 0.4 |
| DIH32 | Digital input module | Discrete signal monitoring | Approx. 110×130×30 mm | 0.45 |
| DOH32 | Digital output module | Control signal output | Approx. 110×130×30 mm | 0.45 |
| CPM21 | Control processor module | System control and processing | Approx. 140×160×40 mm | 0.8 |
Summary
SAI143 is a high-density analog input solution designed for industrial automation systems requiring stable, accurate, and continuous signal acquisition. Its modular structure, strong interference resistance, and flexible integration capabilities make it suitable for large-scale process control environments.
It is most commonly deployed in mission-critical industries where reliability and measurement accuracy are essential for operational safety and efficiency.