Product Description
The SAI533-H03/A4S00 is a safety-rated analog input module designed for mission-critical applications within Yokogawa safety instrumented systems (SIS). Engineered to support SIL3 safety integrity requirements under IEC 61508, the module provides precise and reliable monitoring of process signals from field transmitters.
The module features four galvanically isolated analog input channels, optimized for 4–20 mA process signals with integrated HART communication support. This enables continuous acquisition of process variables while allowing remote diagnostics and configuration of smart field devices without interrupting the safety loop.
Built for demanding industrial environments, the SAI533-H03/A4S00 incorporates fault-detection circuitry, high noise immunity, and robust electrical isolation, ensuring reliable data acquisition even in electrically noisy installations. Its wide operating temperature range and durable hardware design make it suitable for installation in harsh field control cabinets and safety systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SAI533-H03/A4S00 |
| Manufacturer | Yokogawa Electric Corporation |
| Safety Certification | SIL3 (IEC 61508 compliant) |
| Channel Count | 4 galvanically isolated analog input channels |
| Input Signal Range | 4–20 mA DC with HART communication support |
| Measurement Accuracy | ±0.1% of span |
| Signal Resolution | 16-bit A/D conversion |
| Data Update Rate | 1 second per channel |
| Noise Immunity | 120 dB (Common Mode); 60 dB (Normal Mode) |
| Isolation Voltage | 1500 V AC channel-to-ground |
| Operating Temperature | −40°C to +70°C |
| Dimensions | 30 mm (W) × 130 mm (H) × 120 mm (D) |
| Weight | 0.5kg |
Application Scenarios
The SAI533-H03/A4S00 is widely deployed in safety-critical process industries, including:
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Oil and gas refineries
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Petrochemical and chemical processing plants
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Power generation facilities
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Industrial safety shutdown systems
Typical use cases include monitoring pressure, flow, temperature, and level transmitters within SIL-rated safety loops, where accurate measurement and dependable signal acquisition are essential for preventing hazardous process conditions.
The integrated HART communication capability allows operators to access instrument diagnostics, configuration data, and calibration parameters while maintaining the integrity of the safety system.
Frequently Asked Questions
Does the SAI533-H03/A4S00 support HART pass-through communication?
Yes. The module supports HART signal pass-through, allowing host systems to communicate with smart field instruments for configuration, diagnostics, and calibration while maintaining SIL3 safety functionality.
What is the benefit of channel-to-ground isolation?
The 1500 V AC isolation protects the module from ground loops, voltage spikes, and electrical noise commonly present in industrial power systems. This improves signal stability and safeguards the internal electronics from damage.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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