Product Overview
The AAI135-H00/K4A00 is a high-performance analog input module engineered for Yokogawa CENTUM VP and CS 3000 integrated control systems. This variant provides eight channels of fully isolated 4–20 mA inputs with integrated HART communication, enabling accurate signal acquisition and advanced field device diagnostics.
The integrated ATK4A-00 KS Cable Interface Adapter supports efficient wiring in high-density instrumentation panels. Individual channel isolation eliminates ground loops and improves measurement reliability in critical industrial environments.
Technical Specifications
| Item | Specification |
|---|---|
| Channel Configuration | 8 channels, fully isolated |
| Signal Range | 4–20 mA DC |
| HART Communication | Supported (Standard suffix H) |
| Measurement Accuracy | ±16 µA (standard operating conditions) |
| Input Impedance (Active) | 290 Ω @ 20 mA Up to 450 Ω @ 4 mA |
| Input Impedance (Passive) | ≥ 500 kΩ (power off) |
| Maximum Input Current | 25 mA |
| Dielectric Strength | 500 V AC, 1 minute (Input-to-system and channel-to-channel) |
| Connection Interface | Integrated KS cable adapter (ATK4A-00) |
| Update Cycle | ≤ 10 ms |
| Physical Mass | 0.3 kg |
Practical Applications
The AAI135-H00/K4A00 is widely used in petrochemical, pharmaceutical, and power generation facilities for high-accuracy monitoring of pressure, temperature, and flow transmitters.
HART functionality enables remote configuration, diagnostics, and device health monitoring directly from the control system, reducing field maintenance workload and improving system availability.
Common Queries
Does this module provide power to field transmitters?
No. The AAI135 is a current input module only. For applications requiring system-supplied loop power for 2-wire transmitters, consider the AAI143 or AAI841 series, depending on loop power architecture.
How does variable input resistance affect loop calculations?
Input resistance increases as loop current decreases to maintain signal stability. For conservative loop design, always use the maximum value of 450 Ω to ensure sufficient transmitter voltage headroom at minimum current.
Is the KS cable interface adapter removable?
The K4A00 option indicates the module is factory-equipped with the ATK4A-00 KS Cable Interface Adapter, optimized for Yokogawa standard KS cables and fast cabinet wiring.
| 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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