High-Accuracy Analog Signal Acquisition for Safety-Critical Systems
The Yokogawa SAI143-H53/STA4D-00 Analog Input Module is a high-performance current input module designed for Yokogawa safety and process automation platforms. Engineered to acquire analog signals with exceptional stability, this module supports 16 isolated 4–20 mA input channels and integrated HART communication, making it an ideal solution for applications that require precise monitoring of field transmitters and intelligent instruments.
Designed for continuous industrial operation, the SAI143-H53/STA4D-00 offers module-level isolation, fast data processing, and dependable signal integrity. Its compatibility with dual-redundant system architectures enhances plant availability while simplifying maintenance and system expansion. Whether installed in new automation projects or existing DCS and SIS infrastructures, this module delivers reliable performance that helps maximize operational efficiency.
Technical Specifications
| Parameter | Details |
|---|
| Manufacturer | Yokogawa |
| Model Number | SAI143-H53/STA4D-00 |
| Product Type | Analog Input Module |
| Input Type | Current Input |
| Number of Channels | 16 Isolated Channels |
| Rated Input Range | 4–20 mA |
| Communication | HART Supported |
| Data Update Rate | 40 ms |
| Isolation | Module Isolation |
| Transmitter Power Supply | Available for 2-wire transmitters |
| Operating Temperature | -20°C to +70°C |
| Installation | Compatible with STA4D Dual-Redundant Terminal Block Configuration |
| Dimensions | Approx. 130 × 130 × 33 mm |
| Weight | Approx. 0.39 kg |
Typical Applications
The SAI143-H53/STA4D-00 is widely deployed in industries where accurate analog measurement and high system availability are essential.
- Safety Instrumented Systems (SIS)
- Distributed Control Systems (DCS)
- Oil & Gas Processing
- Petrochemical Plants
- Chemical Manufacturing
- Power Generation Facilities
- Water and Wastewater Treatment
- Pharmaceutical Production
- LNG and Refinery Operations
- Continuous Process Automation
Technical FAQs
1. What is the primary function of the SAI143-H53/STA4D-00?
It acquires 4–20 mA analog signals from field instruments and transfers the measurement data to compatible Yokogawa control and safety systems.
2. How many input channels does this module provide?
The module offers 16 isolated analog input channels, allowing multiple field devices to be connected simultaneously.
3. Does the module support HART communication?
Yes. The H suffix indicates integrated HART communication capability for compatible smart transmitters and field instruments.
4. What input signal does the module accept?
It is designed to receive standard 4–20 mA current signals, which are commonly used in industrial process instrumentation.
5. Is channel isolation provided?
Yes. Each input channel is isolated at the module level, helping improve measurement reliability and reduce electrical interference.
6. Can the module power two-wire transmitters?
Yes. It includes a transmitter power supply function suitable for compatible two-wire field transmitters.
7. Is this module suitable for redundant systems?
Yes. The SAI143-H53/STA4D-00 supports installation with compatible dual-redundant terminal block configurations for applications requiring high availability.
8. Which industries typically use this module?
It is widely used in oil and gas, petrochemical, power generation, pharmaceutical manufacturing, water treatment, and other continuous process industries.
9. What are the dimensions and weight?
The module measures approximately 130 × 130 × 33 mm and weighs approximately 0.39 kg, allowing efficient installation within standard Yokogawa control cabinets.
10. Why choose the SAI143-H53/STA4D-00?
Its combination of isolated multi-channel inputs, HART communication, dependable industrial performance, and compatibility with safety-critical automation systems makes it an excellent choice for modern process control applications.
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