Product Description
The AAI143-S03/A4S00 is a ruggedized 16-channel analog input module designed for the Yokogawa CENTUM VP Distributed Control System. This variant incorporates ISA-71.04 G3 conformal coating, making it suitable for harsh industrial environments with corrosive gases, high humidity, and wide temperature variations.
The module provides fully isolated 4–20 mA signal acquisition, ensuring stable and accurate data transfer from field instruments to the DCS while maintaining high system integrity in electrically and chemically aggressive conditions.
Key Features
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G3 Environmental Protection: S03 designation indicates ISA G3 conformal coating for corrosive atmospheres
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Full Galvanic Isolation: 16 isolated channels eliminate ground loops and protect system electronics
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Redundancy Ready: Supports dual-redundant configurations for high-availability control systems
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Optimized Cabinet Integration: /A4S00 interface supports secure and efficient wiring in Yokogawa cabinets
Technical Specifications
| Item | Specification |
|---|---|
| Model Designation | AAI143-S03/A4S00 |
| System Compatibility | Yokogawa CENTUM VP |
| Input Signal Type | 4–20 mA DC |
| Number of Channels | 16 (isolated) |
| Input Resistance | 250 Ω @ 20 mA |
| Transmitter Power Supply | Integrated 24 V DC |
| Operating Temperature | –20°C to +70°C (ISA G3) |
| Measurement Accuracy | High-precision industrial grade |
| Construction Type | Standard type with G3 coating |
| Weight | 0.3 kg |
Industrial Applications
The AAI143-S03/A4S00 is widely used in environments where corrosion resistance and reliability are critical, including:
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Wastewater and water treatment plants
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Chemical and petrochemical facilities
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Offshore oil and gas platforms
The G3 conformal coating makes it particularly suitable for high-sulfur, high-humidity, and coastal installations.
Technical FAQ
Q: What does the G3 option protect against?
A: The G3 conformal coating (ISA-71.04 severity level G3) protects the module from corrosive gases such as hydrogen sulfide (H₂S), nitrogen oxides (NOₓ), and chlorine, significantly extending service life in harsh environments.
Q: Is this module compatible with standard AAI143 terminal boards?
A: Yes. It uses the standard AAI143 mechanical footprint. However, the terminal board and cabling should also meet the environmental requirements of the installation site.
| 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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