Product Description
The SAI143-H63 S4 is a high-precision analog input safety module designed for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). It provides reliable acquisition of 4–20 mA analog signals from field transmitters such as pressure, flow, and temperature sensors.
Engineered to meet SIL3 (IEC 61508) safety integrity requirements, the SAI143-H63 S4 ensures high-accuracy monitoring with fail-safe processing for critical safety applications.
The H63 variant supports HART communication, enabling remote diagnostics and configuration of smart field instruments directly through the safety network. The S4 hardware revision indicates enhanced environmental and long-term operational stability for mission-critical installations.
With 16 electrically isolated input channels, the module prevents fault propagation between signal loops, improving overall system safety and reliability in high-risk industrial environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SAI143-H63 S4 |
| Input Channels | 16 channels (isolated) |
| Signal Type | 4–20 mA DC |
| Safety Certification | SIL3 (IEC 61508) |
| HART Support | Integrated HART pass-through |
| A/D Conversion | 16-bit high-resolution |
| Input Impedance | 250 Ω |
| Accuracy | ±0.1% of full scale |
| Isolation Voltage | 500V AC (input to logic) |
| Power Consumption | Max 500 mA at 24V DC |
| Dimensions | 127 × 229 × 178 mm |
| Weight | 0.3 kg |
Application
The SAI143-H63 S4 is widely used in safety-critical industries including:
-
Offshore oil & gas platforms
-
LNG processing facilities
-
Petrochemical plants
-
Chemical processing systems
Typical applications include:
-
Emergency Shutdown (ESD) systems
-
High-Pressure Protection Systems (HIPPS)
-
Safety loop monitoring for critical process variables
Its high-resolution conversion and HART diagnostics capability make it ideal for remote safety monitoring and predictive maintenance workflows.
FAQ
Q1: Does this module support redundancy?
Yes. The module is designed for use in dual-redundant safety node architectures to ensure continuous safety monitoring.
Q2: Can it power field transmitters?
Yes. It typically operates in 2-wire loop-powered configurations, supplying 24V DC loop power while measuring the 4–20 mA signal.
Q3: What is the benefit of HART support?
HART functionality allows remote health monitoring, calibration verification, and configuration of smart transmitters without direct field access, reducing maintenance risk and cost.
| 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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