Product Overview
The Yokogawa SAI143-H53/A4S00 Analog Input Module is a high-performance 16-channel analog current input module designed for Yokogawa ProSafe-RS safety platforms and compatible modular I/O systems. It receives standard 4–20 mA analog signals from field instruments and delivers precise, stable data acquisition for industrial process monitoring. The H suffix indicates HART communication support, while the /A4S00 option includes a factory-configured pressure clamp terminal block for simplified field wiring.
Designed with module-level isolation and high measurement accuracy, the SAI143-H53/A4S00 offers dependable analog signal acquisition in demanding industrial environments. Its compact construction, flexible wiring options, and compatibility with Yokogawa modular architectures make it an excellent choice for system expansion, equipment replacement, and long-term maintenance projects.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Yokogawa |
| Model | SAI143-H53/A4S00 |
| Product Type | Analog Input Module |
| Module Series | SAI143 |
| Input Channels | 16 channels |
| Input Signal | 4–20 mA DC |
| Permissible Input Range | 0–25 mA |
| Communication | HART Supported |
| Isolation | Module Isolation |
| Rated Accuracy | ±16 μA |
| Data Update Period | 40 ms |
| Input Impedance (Power ON) | Approx. 250 Ω |
| Input Impedance (Power OFF) | ≥500 kΩ |
| Transmitter Supply | Built-in loop supply |
| Wiring Configuration | Individual 2-wire or 4-wire setting |
| Terminal Option | /A4S00 Pressure Clamp Terminal Block |
| Withstand Voltage | 1.5 kV AC (1 minute) |
| Maximum Current Consumption | 320 mA (5 V DC), 550 mA (24 V DC) |
| Operating Temperature | -20°C to +70°C |
| Environmental Rating | ISA Standard G3 |
| Installation Method | Rack-mounted Plug-in Module |
| Dimensions (Approx.) | 127 × 51 × 127 mm |
| Approximate Weight | 0.34 kg |
Typical Applications
The Yokogawa SAI143-H53/A4S00 is suitable for facilities requiring accurate analog signal acquisition and dependable modular integration.
Typical applications include:
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Oil and gas processing facilities
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Petrochemical plants
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Chemical manufacturing
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Power generation facilities
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Water and wastewater treatment
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Pharmaceutical production
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Process manufacturing plants
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Distributed I/O installations
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Yokogawa ProSafe-RS upgrade projects
Its compact design allows efficient cabinet installation while supporting reliable acquisition of multiple field instrument signals.
Key Features & Benefits
The SAI143-H53/A4S00 offers several practical advantages:
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16-channel analog current input
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Supports standard 4–20 mA instrumentation signals
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HART communication capability
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Module-level electrical isolation
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High measurement accuracy
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Built-in transmitter power supply
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Individual 2-wire and 4-wire configuration
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Pressure clamp terminal block included (/A4S00)
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Compact plug-in construction
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ISA Standard G3 environmental compatibility
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Suitable for equipment replacement and system expansion
Technical FAQs
1. What is the Yokogawa SAI143-H53/A4S00?
It is a 16-channel analog input module designed for Yokogawa ProSafe-RS systems, supporting 4–20 mA signal acquisition with HART communication capability.
2. How many input channels are available?
The module provides 16 isolated analog input channels.
3. What input signal does this module support?
It accepts standard 4–20 mA DC analog current signals with a permissible range of 0–25 mA.
4. Does this model support HART communication?
Yes. The H suffix identifies the version with HART communication support.
5. What does the /A4S00 option represent?
The /A4S00 option includes a factory-installed pressure clamp terminal block for analog signal wiring.
6. What is the data update period?
The module updates analog input data every 40 ms.
7. Does the module include transmitter power?
Yes. It provides an integrated transmitter power supply suitable for compatible field transmitters.
8. What are the installation dimensions?
The approximate dimensions are 127 × 51 × 127 mm.
9. What is the approximate weight?
The module weighs approximately 0.34 kg.
10. Why choose the Yokogawa SAI143-H53/A4S00?
The SAI143-H53/A4S00 combines 16-channel analog input capability, HART communication support, module isolation, compact installation, and dependable Yokogawa engineering, making it an excellent solution for industrial signal acquisition and system modernization.
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