Product Description
The AAI835-S50 S3 is a high-reliability hybrid analog input/output module designed for Yokogawa CENTUM VP and CS 3000 DCS. It combines 4 current input channels and 4 current output channels into a single isolated module, providing a compact, space-efficient solution for localized control loops.
The S50 designation indicates a G3-standard conformal coating, offering superior protection against humidity and corrosive gases such as Hydrogen Sulfide (H₂S) and Sulfur Dioxide (SO₂). The S3 style code denotes the latest hardware revision, featuring optimized power efficiency, enhanced signal stability, and functional compatibility with earlier module versions.
Each channel is isolated from system logic, preventing ground loops and protecting the Field Control Station (FCS) from field-side electrical transients. Its compact form factor makes it ideal for control loops where both measurement and actuation are required in a single module.
Technical Specifications
| Parameter | Specification |
|---|---|
| I/O Configuration | 4 Input / 4 Output channels, isolated |
| Signal Range | 4–20 mA DC (Input and Output) |
| Environmental Rating | ISA G3 Conformal Coating (S50) |
| Hardware Revision | Style S3 |
| Signal Accuracy | ±0.1% of span |
| Isolation Strength | 1500 V AC between field and system |
| Data Refresh Rate | 10 ms update cycle |
| Input Impedance | 250 Ω |
| Allowable Output Load | 0–750 Ω |
| Power Requirements | High-efficiency DC-to-DC conversion |
| Module Weight | 0.16 kg |
Application Scenarios
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Localized process control in aggressive industrial environments
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Offshore platforms, wastewater treatment, chemical injection systems
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Ideal for loops requiring both measurement and actuation (e.g., valve positioners, VFDs) within the same compact I/O node
Frequently Asked Questions
Q: What does the S3 suffix represent?
A: The S3 Style Code indicates the hardware revision. While functionally compatible with earlier versions, S3 modules feature improved internal components and enhanced thermal management.
Q: Can this module be used in redundant configurations?
A: Yes. The AAI835-S50 S3 supports dual-redundant FIO baseplate operation, ensuring 99.9999% system availability.
| 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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