Product Description
The AAI835-H00/K4A00 is a high-precision analog input module designed for the Yokogawa CENTUM VP distributed control system (DCS). It provides eight fully isolated channels for 4–20 mA signals, ensuring that electrical disturbances, ground loops, or interference on one channel do not affect other channels or the system logic.
Equipped with HART digital communication, this module enables remote access to advanced diagnostics and multivariable data from smart field instruments. The included ATK4A-00 (K4A00) interface adapter allows seamless connection via KS cables, simplifying cabinet wiring and reducing installation complexity.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | AAI835-H00/K4A00 |
| Input Signal | 4–20 mA DC |
| Channel Configuration | 8 channels, point-to-point isolation |
| Digital Protocol | HART |
| Interface Connection | KS Cable via ATK4A-00 adapter |
| Isolation Rating | 500 V AC (channel-to-channel and channel-to-system) |
| Input Impedance (Active) | 290 Ω at 20 mA / 450 Ω at 4 mA |
| Input Impedance (Power Off) | ≥ 500 kΩ |
| Measurement Accuracy | ±16 µA |
| Maximum Input Current | 25 mA |
| Module Weight | 0.3 kg |
Application
The AAI835-H00/K4A00 is suitable for critical process monitoring in industrial environments such as:
-
Chemical and petrochemical plants
-
Oil refineries
-
Pharmaceutical facilities
Its fully isolated channels make it ideal for installations with high electrical noise, varying ground potentials, or long field wiring runs, ensuring maximum uptime and reliable process data.
Frequently Asked Questions
What is the benefit of the K4A00 option?
The K4A00 interface adapter replaces standard screw terminals with the ATK4A-00 adapter, allowing direct KS cable connection to terminal boards. This simplifies installation and improves cabinet organization.
Can the module handle more than 20 mA?
Yes. The module tolerates up to 25 mA on input channels to accommodate over-range signals or fault conditions without damaging the circuitry.
| 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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