Product Description
The AAI841-S50/K4A00 is a hybrid analog module for the Yokogawa CENTUM VP and CS 3000 control systems. It provides 4 channels of analog input and 4 channels of analog output within a single slot, making it ideal for localized control loops where cabinet space is limited.
As an S50 variant, this module supports standard 4–20 mA analog signals without HART digital communication. The included ATK4A-00 (K4A00) interface adapter allows secure KS Cable connections to AEA4D terminal boards, simplifying wiring and maintaining high signal integrity.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | AAI841-S50/K4A00 |
| Functionality | Combined Analog Input & Output (I/O) |
| Channel Count | 8 total (4 Input / 4 Output) |
| Signal Range | 4–20 mA DC (Bi-directional) |
| Interface | ATK4A-00 KS Cable Adapter |
| Channel Isolation | 500 V AC (I/O to system logic) |
| Accuracy | Input ±16 µA / Output ±48 µA |
| Input Impedance | 250 Ω |
| Output Load Resistance | 0–600 Ω |
| Update Cycle | 10 ms |
| Safety Standard | Basic type, non-explosion protected |
| Weight | 0.3 kg |
Application
The AAI841-S50/K4A00 is suitable for compact automation units, including:
-
Chemical dosing skids
-
Heat exchanger control stations
-
Small-scale water filtration systems
By combining input and output functionality on a single card, it reduces I/O rack complexity and minimizes spare parts inventory for localized process control.
Frequently Asked Questions
Can the input and output channels be used independently?
Yes, the 4 inputs and 4 outputs operate as separate channels within the DCS and can be assigned to different control loops.
Is this module compatible with HART-capable devices?
It will read and send 4–20 mA signals from HART devices, but the S50 variant does not support HART digital communication. For HART diagnostics, the H50 series is required.
| 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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