Product Description
The AAI835 (P/N: AAI835-H03/K4A00) is a high-reliability analog input/output module for the Yokogawa CENTUM VP distributed control system. It provides 4 fully isolated current input channels and 4 fully isolated current output channels in a compact footprint, combining signal acquisition and actuation in a single module.
The H03 variant features ISA Standard G3 conformal coating for superior corrosion resistance and an extended operating temperature range of –20°C to +70°C, making it ideal for harsh industrial environments such as chemical plants, offshore platforms, and wastewater facilities. HART digital communication is integrated for remote device management, while the K4A00 option includes the ATK4A-00 KS cable interface adapter for rapid, reliable connection to AEA4D terminal boards.
Technical Specifications
| Item | Specification |
|---|---|
| Input Channels | 4 × analog current input |
| Output Channels | 4 × analog current output |
| Isolation | Fully isolated (channel-to-channel and channel-to-system) |
| Signal Support | 4 to 20 mA DC with HART digital overlay |
| Environmental Protection | ISA Standard G3 conformal coating (corrosion resistant) |
| Operating Temperature | –20°C to +70°C |
| Update Speed | 10 ms data refresh for real-time control |
| Input Accuracy | ±16 µA |
| Output Accuracy | ±48 µA |
| Isolation Withstand Voltage | 500 V AC for 1 minute |
| Input Impedance | 290 Ω @ 20 mA → 450 Ω @ 4 mA (active) |
| Connectivity | Pre-installed ATK4A-00 KS Cable Interface Adapter (K4A00) |
| Net Weight | 0.3 kg |
Application Use Cases
The AAI835-H03/K4A00 is ideal for outdoor or fence-line I/O cabinets in:
-
Chemical processing plants
-
Offshore platforms
-
Wastewater treatment facilities
It is suited for small-scale control loops where both process variable measurement and control output are required under extreme environmental conditions.
FAQ
What does the G3 rating mean for this module?
The G3 rating refers to the ISA-S71.04 standard, meaning the module is protected against harsh environments where airborne contaminants (e.g., H₂S, salt, chemical vapors) could corrode standard circuit boards.
Can this module be used in standard temperature environments?
Yes, it is fully compatible with standard temperature ranges while providing enhanced durability and reliability for extreme conditions.
| 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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