Product Description
The AAI835 (P/N: AAI835-H00) is a high-reliability analog I/O module for the Yokogawa CENTUM VP distributed control system. It provides 4 analog input channels and 4 analog output channels, all fully galvanically isolated to eliminate ground loops and ensure high-fidelity signal transmission in industrial environments.
As an H-suffix module, the AAI835-H00 supports HART digital communication, allowing remote configuration, monitoring, and diagnostics of smart field devices without interrupting the 4–20 mA analog signal. Manufactured in the USA, it is ideal for process control loops that require both sensing and actuation within a single, compact I/O slot.
Technical Specifications
| Item | Specification |
|---|---|
| Channel Configuration | 4 × analog input + 4 × analog output (8 total), fully isolated |
| Signal Range | 4 to 20 mA DC |
| Communication | HART protocol support (digital overlay on analog loops) |
| Isolation Rating | 500 V AC for 1 minute (channel-to-system) |
| Input Accuracy | ±16 µA |
| Output Accuracy | ±48 µA |
| Input Impedance (Active) | 290 Ω @ 20 mA → 450 Ω @ 4 mA |
| Power-off Input Resistance | ≥ 500 kΩ |
| Safety Type | Basic type (non-explosion protected) |
| Physical Dimensions (W × H × D) | 3.2 × 10.7 × 13 cm |
| Net Weight | 0.32 kg |
Application Use Cases
The AAI835-H00 is ideal for integrated control loops in applications such as:
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Water treatment and chemical dosing
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Temperature and flow regulation
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Distributed control nodes requiring space optimization
By combining input and output channels on a single module, it reduces the total module count and simplifies cabinet layouts, while supporting smart device management via HART.
FAQ
Can this module interface with both 2-wire and 4-wire transmitters?
Yes. The AAI835-H00 supports both transmitter types when external wiring and power distribution are configured properly at the terminal board.
Does the "00" version include a terminal block or cable adapter?
No. The "00" suffix indicates a basic configuration. A separate pressure clamp terminal or KS cable adapter may be required depending on your cabinet design.
| 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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