Technical Overview
The SAI143-S03/K4A00 is a high-reliability, safety-certified analog input module for Yokogawa’s ProSafe-RS SIS. Designed for SIL3 safety loops, it monitors critical 4–20 mA signals from field transmitters. The module features module-level isolation, extended temperature operation (-20°C to +70°C), and G3-standard conformal coating, making it ideal for harsh chemical, offshore, or high-corrosion environments.
Detailed Specifications
| Item | Specification |
|---|---|
| Module Type | Safety Analog Input Module (SIS) |
| Model Number | SAI143-S03/K4A00 |
| Channels | 16 channels, module-level isolation |
| Signal Range | 4–20 mA DC |
| Accuracy | ±0.1% of full scale |
| HART Support | Not included (S suffix = standard analog) |
| Thermal Range | -20°C to +70°C (S03 hardware revision) |
| Conformal Coating | ISA Standard G3 for corrosive environments |
| Power Consumption | 5 V DC at 320 mA; 24 V DC at 550 mA |
| Data Refresh | High-speed, compliant with safety logic |
| Weight | 0.3 kg |
| Options / K4A00 | KS Cable Interface Adapter for connection to terminal boards via KS cable (marshaling-free wiring) |
System Integration and Features
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Designed for ProSafe-RS safety systems, providing diagnostics and SIL3-compliant functionality.
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KS cable interface (/K4A00) enables connection to remote terminal boards, reducing field wiring complexity and cabinet clutter.
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S03 hardware ensures ruggedness, extended temperature tolerance, and resistance to corrosive atmospheres.
Technical FAQ
Is this module different from the NFAI143 used in CENTUM VP?
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Yes. The SAI143 is safety-certified and includes internal diagnostics required for SIL3 compliance, unlike standard CENTUM VP analog modules.
Does the "S" suffix support HART?
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No. The “S” suffix indicates standard analog input without HART. HART-enabled modules are denoted with the “H” suffix (e.g., SAI143-H).
What is the purpose of the /K4A00 option?
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It allows marshaling-free wiring: the module can connect to a separate terminal board using a KS1 or similar cable, simplifying cabinet organization and reducing installation time.
| 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 |
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| 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. |
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