Acrel Adw300 IoT Smart Energy Meter of RS485 4G WiFi Lora Communication

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Product Description

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Basic Information

Model NO. ADW300 Certification CE
Form All-packaged Type Operation Voltage Low Voltage
Size 1 Unit Application Range High-rise Buildings
Shell Material Plastic (IP55) Phase Three Phase
Accuracy 0.5 or 1 Grade Auxiliary Power AC85V-265V, AC380V, DC24V
Protocol Modbus-RTU, Dl/T645-07 Communication Lora, 4G, WiFi, RS485

Product Description

Smart Energy Meter Overview

The ADW300 wireless meter is primarily designed to measure three-phase active power in low-voltage networks. Featuring robust RS485 and 470MHz wireless communication capabilities, it provides a seamless solution for users to monitor, collect, and manage electricity data efficiently. Its flexible installation design allows it to be integrated into distribution boxes for precise measurement, statistics, and analysis of energy consumption across different regions and loads.

This advanced IoT meter captures all essential electrical parameters and supports 2-31st harmonic analysis. It further enhances safety through leakage current detection and 4-channel temperature measurement. Compatible with various communication protocols including MQTT, it connects easily to energy management platforms.

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Technical Specifications

Parameter Feature Range / Value
Input Voltage Nominal 3*220/380V, 3*380V, 3*57.7/100V, 3*100V
Frequency 50Hz - 60Hz
Consumption <0.5VA
Input Current Maximum 6A
Starting 0.002A
Accuracy Class 0.5S
Pulse Constant 6400 imp/kWh
Environment Operating Temp -25ºC ~ 55ºC
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Function & Dimensions

Functions Display
Dimensions 1
Dimensions 2
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Wiring & Networking

Wiring Diagram
4G WIFI Solution
LoRa Solution
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Installation Steps & Onsite Photos

Steps
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Frequently Asked Questions

What is the main advantage of the ADW300?
It features a built-in wireless communication module (4G LTE, WiFi, NB-IoT, LoRa), allowing for upstream communication without the need for additional IoT gateways. It is ideal for monitoring 3-phase circuits in non-centralized installations.
How should I troubleshoot RS485 communication malfunctions?
First, verify that the RS485 wiring is secure and correctly polarized (A and B terminals). Then, check the meter's settings for address, baud rate, and check bits using the onboard keypad to ensure they match the system.
What should I do if LoRa communication fails?
Connect the meter to a computer via a USB to RS485 converter. Use adjustment software to sync the channel and spreading factor (SF) with the master station. If issues persist, consider using a chuck antenna or moving the master station closer.
What is the difference between ADW300 and ADW300W?
ADW300 has internal current transformers (CTs) and supports secondary connection via external CTs. ADW300W uses fixed external current transformers, which simplifies installation in sites where CTs are already present.
What do the various voltage specifications (e.g., 3x220/380V) represent?
Specifications like 3*100V are for high-voltage systems (using potential transformers), while 3*220/380V are for direct connection to low-voltage systems. They distinguish between 3-phase 3-wire and 3-phase 4-wire configurations.
Can this meter connect to third-party IoT platforms?
Yes, the meter supports the MQTT protocol, enabling it to connect directly to various IoT energy management platforms and third-party cloud systems.

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