Product Description
The SAI143-S53 S3 is a high-reliability analog input safety module designed for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). It is used to accurately capture 4–20 mA analog signals from field transmitters such as pressure, level, and flow sensors.
This module is engineered to meet SIL3 (IEC 61508) safety integrity standards, providing high diagnostic coverage and fail-safe protection for critical applications such as Emergency Shutdown (ESD) and Fire & Gas (F&G) systems.
The S53 variant supports 16-channel high-density signal monitoring with galvanic isolation between field wiring and internal logic circuits, protecting the system from electrical noise and surge damage. The S3 suffix indicates hardware and firmware revisions optimized for long-term operational stability in harsh industrial environments.
High-resolution 16-bit A/D conversion and fast sampling cycles ensure real-time safety monitoring and rapid execution of protective control logic.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SAI143-S53 S3 |
| Module Type | Analog Input (Current) |
| Input Channels | 16 channels (isolated) |
| Signal Range | 4–20 mA DC |
| Safety Certification | SIL3 (IEC 61508) |
| A/D Conversion | 16-bit resolution |
| Input Impedance | 250 Ω |
| Accuracy | ±0.1% of full scale |
| Isolation Voltage | 500V AC (field to logic) |
| Power Consumption | Max 500 mA at 24V DC |
| Update Cycle | 10 ms (16 channels) |
| Dimensions | 32 × 107 × 130 mm |
| Weight | 0.3 kg |
Application
The SAI143-S53 S3 is widely used in safety-critical industries, including:
-
Offshore oil and gas platforms
-
Petrochemical refineries
-
Pharmaceutical manufacturing facilities
Typical applications include:
-
High-Pressure Protection Systems (HIPPS)
-
Burner Management Systems (BMS)
-
Safety monitoring for ESD and F&G protection loops
Its high diagnostic coverage and redundant-ready design make it suitable for high-integrity process safety applications.
FAQ
Q1: Does this module support redundancy?
Yes. It is designed for redundant safety node configurations to maintain safety loop continuity in the event of a module failure.
Q2: Is it compatible with HART transmitters?
It reads the 4–20 mA analog signal. For full HART digital communication pass-through, the HART-series variants should be used.
Q3: How is this different from standard PLC analog inputs?
Unlike standard PLC I/O, this module includes extensive self-diagnostics and safety-certified redundant circuitry for critical safety system applications.
| 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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