Product Description
The AAI841 (P/N: AAI841-S00/K4A00) is a high-density analog interface module for the Yokogawa CENTUM VP distributed control system. It provides 8 dedicated current input channels and 8 dedicated current output channels (16 total) within a single slot, enabling both sensing and actuation in a compact footprint.
As a Standard (S-suffix) variant, the module is optimized for high-speed, reliable 4–20 mA signal transmission without HART digital communication. Its non-isolated (common ground) architecture allows maximum channel density while the ATK4A-00 KS cable interface (K4A00 option) provides plug-and-play connectivity to terminal boards, simplifying cabinet assembly and minimizing footprint.
Technical Specifications
| Item | Specification |
|---|---|
| Input Channels | 8 × analog current input |
| Output Channels | 8 × analog current output |
| Signal Range | 4 to 20 mA DC |
| Common Mode Architecture | Non-isolated, channels share common ground |
| System Connectivity | ATK4A-00 KS Cable Interface Adapter for AEA4D/AED4D terminal boards |
| Input Accuracy | ±16 µA |
| Output Accuracy | ±48 µA |
| Input Resistance | 250 Ω to 500 Ω (dynamic based on signal state) |
| Allowable Input Current | Up to 25 mA continuous |
| Withstanding Voltage | 500 V AC for 1 minute (I/O to system) |
| Configuration Type | Basic type, non-explosion protected (S00) |
| Data Refresh Speed | Optimized for real-time control in FIO nodes |
| Module Weight | 0.3 kg |
Application Use Cases
The AAI841-S00/K4A00 is ideal for:
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Utility management systems
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Water treatment facilities
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Industrial HVAC and process control
Its 16-channel density makes it perfect for space-constrained cabinets where multiple control loops (e.g., pressure monitoring with pump speed control) need to be integrated without sacrificing reliability.
FAQ
What is the primary advantage of the AAI841 over the AAI835?
The AAI841 provides double the I/O capacity (8-in/8-out vs 4-in/4-out) but is non-isolated, whereas the AAI835 offers full channel-to-channel isolation.
Can I use this module with smart transmitters?
Yes, it will read 4–20 mA analog signals from smart transmitters. However, HART digital communication is not supported; for HART capability, choose the H-suffix version (AAI841-Hxx).
| 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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