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https://www.acrel.gr/products/adw300-wireless-energy-meter/

Acrel ADW300 wireless smart acrel energy meter is mainly used to measure three-phase active electric energy of the low-voltage networks. With RS485 communication and 470MHz wireless communication function, our ADW300 4G smart power meter is convenient for users to monitor, collect and manage electricity consumption.

Acrel ADW300 3-phase wireless power meter monitor can be flexibly installed in the distribution box to realize the measurement, statistics and analysis of sub-item electric energy of different regions and different loads

Measurement: 3 Phase voltage, current, power, power factor, etc.

Communication: RS485, LoRa, 4G, WIFI, LoRaWan

Max demand measure

Accuracy: Class 1.0

Acrel ADW300W Wireless Smart Energy Meter Parameters
Voltage inputRated voltage3×57.7/100V,3×220/380V,3×380/660V,3×100V,3×380V,3×660V
Referencefrequency50Hz
Consumption<0.5VA (Each phase)
Current inputInput current3×1(6)A;3×1(6)A(ADW300w),3×20(100A(ADW300W)
Start current1%. Ib(Class 0.5S),4% Ib(Class 1)
Consumption<1VA (Each phase)
Auxiliary powerPower SupplyAC 85~265V
Power consumption<2W
Measurement performanceStandardIEC62053-22:2003,IEC62053-21:2003
Active energyaccuracyClass 0.5S (ADW300),Class 1(ADW300W)
Temperatureaccuracy±2℃
PulseWidth of pulse80±20ms
Pulse constant6400imp/kWh,400imp/kWh
CommunicationWirelessTransmission on 470MHz and maximum distance in open space is Ikm;2G;NB;4G
Infrared interfaceThe constant baud rate is 1200
RS485 interfaceRS485(A、B)
Connection modeShielded twisted pair conductors
protocolMODBUS-RTU

Functions
Display modeLCD
Energy measurementActive kWh(positive and negative),quadrant reactivepower energy
Electrical measurementU、I、P、Q、S、PF、F
Harmonic functionTHDv、Harmonic on 2nd-31st
Three-phase unbalance degreeVoltage unbalance,current unbalance
Temperature measurementTemperature of A/B/C/N(Alternate configuration:T)
leakage current1 channel residual current measurement
DI/DO4DI,2DO(Alternate configuration.K)
External current transformerExternal open type current transformer(Alternate configuration:W)
Electrical parameter AlarmUndervoltage, undercurrent,overcurrent,underload,etc
CommunicationInfrared communication
RS485(Alternate configuration.C)
Wireless transmission on 470MHz(Alternate configuration: LR)
GPRS(Alternate configuration:2G)
NB-IOT(Alternate configuration:NB)
4G(Alternate configuration.4G)
WIFI(Alternate configuration.WIFI)

Acrel ADW300 3-Phase Wireless Energy Meter Diagram

There are four modes of connection like 3-phase 4-wire (current connected via CT), 3-phase 3-wire (current connected via CT), 3-phase 4-wire (current connected via PT and CT) and 3-phase -wire (current connected via PT and CT). Two-way Digital output and four-way Digital input. Record the historical data on electricity consumption covering the previous 12 months. Acrel ADW300 series supports LORA, 2G, NB, and 4G communications.

3 Phase Smart Meter Installation & Use
Step ①: Correctly install&wire meters
1. 35mm DIN-rail installation

2. 3-phase 4-wire or 3-phase 3-wire methods

3. Voltage signal input via direct connect or PTs

4. Current signal input via CTs or Rogowski Coils

5. Power supplied by 85~265Vac L-N power source

Step ②: Download&Register IoT APP
1. Download of IoT EMS APP

2. Register your account with 3-month Free Trial

3. Or contact us to get Test Account

Step ③: Add Meters to your Account
1. Acrel ADW300 smart energy Meters are recognized by a unique SN code

2. Scan QR code to add the wireless power consumption meter to your account

3. Edit CT&PT ratio according to paired CT&PT

4. If voltage input via direct connect, PT ratio set to 1 (Actual Power System Voltage = Voltage Signal Input of Meter)

5. If current input via 250A/5A CTs for example, CT ratio set to 50 (250÷5=50)

Step ④: Start your 3-month Free Trial
1. After 3 months, host service&buy-out service will be available for account renewal.

2. Contact us for more information about system charge item&meter quotation.

3. Before we send you the quotation, we will set a solution according to your request.

4. Provide full technical support for installing Acrel ADW300 3-phase wireless energy monitors and connecting meters to our system.

ADW300 Wireless Energy Monitor For Smart Meters Benefits

4G, LoRa, WIFI wireless communication

Small volume, easy installation

Switch, temperature function optional

External open-type current transformer

ADW300 Wireless Power Meter Monitor Applications

Remote meter reading of the power-distribution box

Matched with IoT energy efficiency management system

This wireless power consumption meter can connect to power operation and maintenance cloud platform

Acrel ADW300 4g meter wireless series is suitable for electricity monitoring of reconstruction projects

Acrel ADW300w 3-Phase Wireless Energy Monitor FAQs
What's the biggest advantage of ADW300?

ADW300 has its built-in wireless communication module which allow it to realize 4G LTE, WiFi, NB-IoT, LoRa upstream communication without using extra IoT gateways. For the application scenarios when the meters can't be of centralized installation, ADW300 will usually be the best option for monitor 3-phase circuits that were far from each other.

How should I deal with RS485 network communication malfunction?

First, check if the wiring of RS485 communication line was loosen or wired incorrectly.(like reversely wiring the A,B terminal).

Next,inspect if the meter’s setting of address, baud rate, check bit was correct by using keypads on the meter.

What if LoRa communication of meters malfunctioned?

First, use USB to RS485 serial converter to connect the meter with computer. Then use adjustment software to check if setting of meter is on consensus with the setting of master station.(setting of channel and spreading factor--SF)

If setting remain the same, then it might be due to large interference of work site or the excessively far range between meter and host. In that case, it’s recommended to use chuck antenna or set a new master station nearby.

What's the difference between ADW300 and ADW300W?

ADW300 has internal current transformers and can select compatible current transformer according to the site current to realized a secondary connection via CTs.

ADW300W on the other hand, has external current transformers.(non-detachable or it will damage the meter) This kind of design extremely ease the wiring and installation if the work-site already has CTs.

What do 3×57.7/100V,3×220/380V,3×380/660V,3×100V,3×380V,3×660V represent respectively?

The meter’s spec of 3*100V,3*57.7/100V is suitable for high voltage power system while pairing with PT(potential transformer or voltage transformer). Beside, 3*100V represent 3-phase 3-wire and 3*57.7/100V represent 3-phase 4-wire.

The meter’s spec of 3*220/380V,3*380/660V,3*380V,3*660V is suitable for low voltage power system(directly connect with meter). Meanwhile,3*380V,3*660V represent 3-phase 3-wire and 3*220/380V,3*380/660V represent 3-phase 4-wire.

Other Question? Please contact us and we will get back to you as soon as possible.