Name: ADW300 IoT Wireless Power Meter
Brand: Jiangsu Acrel Micro-grid Research & Development Institute

Acrel ADW300 IoT Wireless Power Meter

ADW300 wireless measuring energy meter is mainly used for various electric parameter measurement as well as active and reactive power measurement of medium and low voltage networks. It has RS485 communication and a variety of wireless communication options, which is convenient for users to monitor, collect and manage electricity consumption. It can be flexibly installed in the distribution box to realize sub-item electric energy measurement, statistics and analysis for different areas and different loads.

Specification of ADW300 IoT Wireless Power Meter

Function Overview

Main Parameters

Environment

Function	Description
Measurement	Three-phase AC kWh, kVarh, Active Power, Reactive Power, Quadrant Reactive Power Energy, Current, Voltage, Voltage&Current Unbalance, Power Factor, Apparent Power, Frequency, Harmonic (2~31st&THD)
（Standard）
Measurement	Temperature Measurement:4-channel (A, B, C, N) Cable Temperature Monitoring; Thermistor: NTC; Range: -40~+99℃; Accuracy:±2℃
(Optional)	Residual Current Measurement: 1-channel Residual Current Monitoring (Need to be paired with Residual Current Transformers)
Communication (Standard)	RS485 Port with Modbus-RTU protocol - 1 start bit,8 data bits,1 stop bit, no parity; Baud Rate 1200~38400 bps, etc.
Communication (Standard)	Infrared Communication - Constant Baud Rate 1200 bps
Communication (Optional)	4G LTE - Normal Communicaiton Module Support: LTE-FDD: B1/B3/B5/B8; LTE-TDD:B34/B38/B39/B40/B41
	4G LTE - Global Communication Module Support: LTE-FDD: B1/B3/B5/B7/B8/B20/B28; LTE-TDD: B38/B40/B41
	WiFi - Support 2.4GHz or 5GHz
	LoRaWAN
	LoRa
	NB-IoT
Display	LCD Display and LED Indicator
(Standard)	LCD Display and LED Indicator
HMI	Keypads Programming: Setting of CT/PT Ratio, Communication, Phase Wiring and etc
(Standard)
Software	Adjustment Software: Setting of Data Upload Interval, WiFi configuration (Account&Password), Server Address, Port and etc
(Standard)
Alarm Function	Undervoltage, Overvoltage, Undercurrent, Overcurrent, Underload, Overload, Communication Disconnection and etc
(Standard)
I/O Function (Optional)	4-channel or 2-channel DI (Digital Input)
I/O Function (Optional)	2-channel DO (Digital Output)

Parameter	Description&Value
Voltage Input	Rated Voltage	3x380~456Vac L-L or 3x660~792Vac L-L (via direct connection)
	Rated Voltage	3x100~120Vac L-L (via PTs)
	Reference Frequency	45~65Hz
	Power Consumption	＜0.5VA (each Phase)
Current Input	Rated Current	3x1(6)A AC (via CTs)
	Starting Current	1% Ib (Class 0.5); 4% Ib(Class 1)
	Power Consumption	＜1VA (each Phase)
Phase	3P4W	3-phase 4-wire
Wiring	3P3W	3-phase 3-wire
Auxiliary	Voltage Range	85~265Vac
Power	Voltage Range	85~265Vac
Supply	Power Consumption	＜2W
Measurement	Standard	IEC 62053-22:2003; IEC 62053-21:2003
Performance	kWh Accuracy	Class 0.5S
Pulse	Width of Pulse	80±20ms
Pulse	Pulse Constant	6400imp/kWh; 400imp/kWh

Condition	Description&Value
Temperature	Operating Temperature: -20℃～+55℃; Storage Temperature: -40°C ~+70°C
Humidity	≤95%RH, no condensation, without corrosive gas
Altitude	≤ 2000m

Features of ADW300 IoT Wireless Power Meter

It has the advantages of small size, high precision, rich functions, etc., and has many optional communication methods, supporting RS485 communication and Lora, 2G, NB, 4G and other wireless communication methods;

It uses an industrial-grade microprocessor as the core, adopts an external open-type CT, and supports power-off-free installation;

It can meet the installation requirements of low-voltage cabinets and floor distribution boxes with strict space requirements.