Product Description
The AAI143 (P/N: AAI143-H50/ATA4S-00) is a high-density 16-channel analog input module designed for the Yokogawa CENTUM VP distributed control system. Each channel is fully isolated, enabling precise measurement of process variables such as flow, temperature, and pressure via standard 4 to 20 mA signals.
As a HART-enabled module (H-suffix), the AAI143-H50/ATA4S-00 allows the DCS to communicate digitally with smart transmitters, supporting remote configuration, advanced diagnostics, and asset management. The ATA4S-00 option incorporates a Pressure Clamp Terminal Block directly on the module, eliminating the need for separate KS cables or external terminal boards. This makes it space-efficient, ideal for compact I/O cabinets, while maintaining high signal integrity and rapid data update cycles for mission-critical applications.
Technical Specifications
| Feature | Specification |
|---|---|
| Input Channels | 16 analog current inputs, fully isolated |
| Signal Range | 4 to 20 mA DC with HART digital communication |
| Isolation Rating | 1500 V AC (input-to-system), 500 V AC (channel-to-channel) |
| Input Impedance (Active) | 270 Ω (at 20 mA) – 350 Ω (at 4 mA) |
| Input Impedance (Passive) | ≥500 kΩ when powered off |
| Measurement Accuracy | ±16 μA |
| Data Refresh Rate | 10 ms |
| Maximum Input Current | 24 mA |
| Wiring Interface | ATA4S-00 Integrated Pressure Clamp Terminal Block |
| Safety Class | Basic type, non-explosion protected (H50) |
| Operating Temperature | 0 to 50°C |
| Net Weight | 0.4 kg |
Application Use Cases
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High-density analog sensing in centralized I/O racks
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Smart instrumentation environments for flow, pressure, and temperature monitoring
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Facilities utilizing Yokogawa PRM for remote device diagnostics
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Oil & gas, chemical, and pharmaceutical plants requiring compact, high-reliability modules
FAQ
What is the primary benefit of the ATA4S-00 terminal block?
-
The ATA4S-00 is a direct-attach pressure clamp terminal, providing secure, vibration-resistant connections and reducing the need for external terminal boards.
Can this module handle 2-wire and 4-wire transmitters?
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Yes. 2-wire transmitters require external loop power or a configured terminal board, while 4-wire transmitters (self-powered) can be connected directly.
| 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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