Product Description
The AAI143-S50/K4A00 is a high-density isolated analog input module designed for Yokogawa FIO systems. It provides 16 fully isolated 4–20 mA channels, ensuring robust protection against electromagnetic interference and ground loop differences.
This module supports integrated transmitter power for 2-wire devices and dual-redundant configurations, making it ideal for high-availability process control applications. The /K4A00 KS cable interface adapter (ATK4A-00) enables fast, organized connection to terminal boards.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Channels | 16 channels, fully isolated |
| Input Signal Range | 4–20 mA DC |
| Measurement Accuracy | ±16 μA |
| Data Update Cycle | 10 ms |
| Input Impedance | 270–350 Ω (Power ON); ≥500 kΩ (Power OFF) |
| Transmitter Power | ≥19.0 V @ 20 mA (for 2-wire devices) |
| Isolation Rating | 1500 V AC (input to system), 60 s |
| Operating Temperature | −20 to +60 °C |
| Power Consumption | 500 mA @ 5 V DC |
| Weight | 0.3 kg |
Application Scenarios
The AAI143-S50/K4A00 is suited for heavy industrial environments such as power generation and chemical manufacturing.
It is ideal for high-density sensor monitoring where channel isolation is critical and fast data acquisition is needed for PID control loops. Its dual-redundancy support ensures that loss of one module does not compromise overall signal integrity.
Technical FAQ
Q: How does the module behave during power loss?
A: In a Power OFF state, the input resistance rises to ≥500 kΩ, preventing the module from loading the current loop and allowing redundant modules or diagnostic tools to continue signal monitoring.
Q: What transmitter types are supported?
A: Both 2-wire and 4-wire transmitters are supported. The internal 19 V supply powers 2-wire devices, while 4-wire devices can bypass this supply via hardware settings.
| 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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