Product Description
The Yokogawa SAI143-S03 S1 is a high-density analog input module designed for the ProSafe-RS Safety Instrumented System (SIS). It captures 4–20 mA current signals from field transmitters—such as pressure, flow, and temperature sensors—and converts them into digital data for safety logic execution. With a high-speed 40 ms update rate and module isolation, the SAI143-S03 S1 ensures SIL3-compliant reliability in mission-critical environments. The S03 configuration features ISA G3 conformal coating, providing superior protection against corrosive industrial gases.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | SAI143-S03 (Style Code: S1) |
| Module Type | Analog Input Module (Current Input) |
| Channels | 16 isolated input channels |
| Input Signal Range | 4–20 mA (Permissible: 0–25 mA) |
| Accuracy | ±16 µA (1–23 mA range) |
| Data Update Frequency | 40 ms |
| Isolation | Module isolated (1.5 kV AC withstand, 1 min) |
| Input Impedance | 250 Ω (Power ON), ≥ 500 kΩ (Power OFF) |
| Transmitter Supply | 16.15–26.4 V |
| Conformal Coating | ISA Standard G3 |
| Operating Temperature | -20°C to 70°C |
| Dimensions | 5.1 × 12.7 × 12.7 cm |
| Weight | 0.34 kg |
Industrial Application Scenarios
The SAI143-S03 S1 is widely used in oil & gas, petrochemical, and power generation industries. Typical applications include Emergency Shutdown (ESD) and Fire & Gas (F&G) systems. Its dual-redundancy capability makes it ideal for loops where a single module failure must not interrupt operations. The module supports both 2-wire and 4-wire transmitter configurations, offering flexibility across diverse field instrumentation setups.
Frequently Asked Questions
1. What does the 'S03' suffix mean?
-
S = standard signal type
-
0 = no explosion protection (safe area)
-
3 = G3-rated with extended temperature tolerance and ISA G3 conformal coating
2. Can this module support HART communication?
No, for HART-enabled transmitters, use the SAI143-H series.
3. Is the SAI143-S03 still available?
Yes, it remains available as a replacement part, though newer installations may use the SAI143-S53.
| 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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