Product Description
The VJA1-027-AAA0 is a high-performance plug-in signal distributor from the Yokogawa JUXTA VJ Series. This compact industrial instrument is designed to power 2-wire transmitters while simultaneously splitting and isolating a 4–20 mA DC loop signal into two independent outputs.
The dual-output distribution capability allows a single process measurement to be shared between local monitoring devices and centralized control systems such as PLCs or DCS platforms without introducing electrical interference or signal degradation.
The module features a three-way isolation architecture, providing electrical separation between input, outputs, and power circuits. This design protects control systems from ground loops, surge voltages, and industrial electromagnetic noise.
Its plug-in modular design supports hot-swapping via a dedicated base socket, reducing maintenance downtime in continuous process operations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | VJA1-027-AAA0 |
| Series | JUXTA VJ Signal Conditioning Series |
| Module Type | Signal distributor |
| Input Function | 24V DC loop power + 4–20 mA signal input from 2-wire transmitter |
| Output Channels | 2 isolated outputs |
| Output Signal | 4–20 mA DC |
| Isolation | 3-way isolation (Input / Output / Power / Ground) |
| Withstand Voltage | 2000V AC for 1 minute |
| Accuracy | ±0.1% of span |
| Response Time | 150 ms (0–90% step response) |
| Power Supply | 100–240V AC/DC universal |
| Operating Temperature | -10°C to +55°C |
| Weight | 0.2 kg |
Application
The VJA1-027-AAA0 is widely used in:
-
Water treatment facilities
-
Chemical processing plants
-
Power generation plants
-
Oil and gas processing facilities
Typical use cases include splitting signals from process transmitters such as:
-
Tank level transmitters
-
Pressure monitoring instruments
-
Flow measurement devices
One common configuration is distributing a single 4–20 mA signal to:
-
Safety systems (ESD monitoring)
-
Data logging or SCADA reporting systems
FAQ
Q1: Can this module be used with 4-wire transmitters?
No. This model is specifically designed for loop-powered 2-wire transmitters. For 4-wire transmitters, isolator models such as VJI series modules are recommended.
Q2: Is a mounting socket required?
Yes. The VJA1-027-AAA0 is a plug-in module that requires a VJ series mounting base for wiring and installation.
Q3: Will Output 2 be affected if Output 1 fails?
No. The module uses isolated output circuits, so faults on one output channel do not affect the other output signal.
| 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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