Product Description
The NFAI143-H50-S1 is a high-density, multi-channel analog input module designed for Yokogawa automation systems. It provides 16 galvanically isolated input channels, protecting sensitive field measurements from common-mode noise and ground loops.
This module delivers high-precision signal conversion for standard 4–20 mA current loops, enabling accurate monitoring of field instruments such as pressure transmitters, flow meters, and temperature sensors. Its robust isolation and compact design make it ideal for high-availability process control applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | NFAI143-H50-S1 |
| Manufacturer | Yokogawa |
| Module Type | Analog Input |
| Input Channels | 16 independent, galvanically isolated |
| Supported Signal Range | 4–20 mA DC |
| Maximum Input Current | 24 mA (continuous) |
| Dielectric Strength | 1500 V AC, 1 min (Input-to-System) |
| Isolation Type | Full galvanic isolation |
| Operating Temperature | 0°C to 60°C |
| Physical Weight | 0.3 kg |
Application Scenarios
The NFAI143-H50-S1 is widely deployed in DCS racks requiring high-density instrumentation, including:
-
Chemical processing plants
-
Oil and gas refineries
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Utility power control centers
Its isolated architecture is especially valuable for long cable runs exposed to electromagnetic interference (EMI), ensuring accurate, reliable process data for the control system.
Frequently Asked Questions
Does the NFAI143-H50-S1 require external power for the loop?
It monitors current loops. Depending on your field setup, a separate 24 V DC supply may be needed to power two-wire transmitters.
What is the advantage of the 16-channel isolation?
Channel-to-channel and channel-to-system isolation prevents ground potential differences from affecting measurement accuracy, which is critical for distributed sensor networks across large sites.
| 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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