Product Description
The AAI135 (P/N: AAI135-SE0) is an 8-channel analog input module engineered for the Yokogawa CENTUM VP and CS 3000 series control systems. Each channel is fully isolated, providing high-fidelity monitoring of 4 to 20 mA signals from field transmitters for pressure, temperature, flow, and other process variables.
The SE0 (“Standard”) variant is optimized for high-speed, reliable analog acquisition without HART digital communication. Its galvanic isolation ensures that signal interference, ground loops, or electrical surges on one loop do not affect other channels or the DCS system logic, making it ideal for robust industrial applications where signal integrity is critical.
Technical Specifications
| Feature | Specification |
|---|---|
| Input Channels | 8 analog current inputs |
| Signal Range | 4 to 20 mA DC |
| Isolation Type | Fully isolated (channel-to-channel and channel-to-system) |
| Withstanding Voltage | 500 V AC for 1 minute (signal-to-system) |
| Measurement Accuracy | High-precision with minimal thermal drift |
| Input Resistance | 250 Ω standard loop impedance |
| Data Update Period | Fast response suitable for real-time control |
| Module Type | Standard (S) for non-explosion protected areas |
| Style Code | E0 (Base revision) |
| System Interface | Fits Yokogawa FIO node slots |
| Operating Temperature | 0 to 50°C |
| Net Weight | 0.35 kg |
Application Use Cases
-
Medium-density I/O environments, such as boiler control, water treatment, and auxiliary power systems
-
Situations requiring isolated analog input without HART communication
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Smaller transmitter clusters where lower channel density per module aids maintenance and safety strategies
FAQ
What is the difference between AAI135 and AAI143?
-
The AAI135 provides 8 channels per module, while the AAI143 offers 16 channels. Choose AAI135 for smaller or more critical signal groups, and AAI143 for high-density monitoring.
Can this module power a 2-wire transmitter?
-
The AAI135 acts as a current receiver. With proper external 24V DC power and terminal board configuration, it can monitor both 2-wire (loop-powered) and 4-wire (self-powered) transmitters.
| 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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