IoT Wireless energy meter
● Communication: 4G, WiFi, LoRa, NB-IoT, LoraWan,RS485(MODBUS-RTU)
● Measurement: 3-phase Active Power, Reactive Power, Current, Voltage, Harmonic and etc.
● Application: Paired with IoT Smart Metering System (See More)
● Display: LCD
● Dimension: 72*87.8*71.5mm
● Installtion: 35mm DIN Rail
● Standard&Certificate: IEC62052-11;IEC62053-22;LVD

PRODUCTS

  • Features

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    Multiple Communication Methods


    ● 4G (Support Global Frequency Bands)


    ● 2G


    ● WiFi


    ● LoRa


    ● NB-IoT


    ● RS485 (MODBUS-RTU)


    ● Free Trial for IoT APP/WEB System (See More)

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    Diverse Electricity Parameters Measurement


    ● kWh  (positive and negative)


    ● kVarh (positive and negative)


    ● U, I, P, Q, S, PF, Hz


    ● Harmonic (THDv, 2-31st)


    ● 3-phase current&voltage imbalance

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    DO/DI Switch Function


    ● 2 DO Digital Output


    ● 4 DI Digital Input

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    Residual Current Measurement Function


    ● 1-channel Residual Current


    ● Paired with Residual Current CTs

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    Temperature Monitoring Function


    ● Thermistor: NTC


    ● Monitoring: 4-channel Cable Temperature (for A,B,C,N)


    ● Range: -40℃~+99℃


    ● Accuracy: ±2℃


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    LCD Display


    ● Parameter Display


    ● Programming Interface

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    Local Configuration


    ● Keypads HMI for Setting


    ● Setting through Adjustment Software

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    Display Sample

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    Wiring Illustration

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                                                                                             3-phase 4-wire connection                                        3-phase 3-wire connection


    Typical Networking Connection

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    Common FAQ


    Q:How should I deal with RS485 network communication malfunction?


    A: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.


    Q:What if LoRa communication of meters malfunctioned?


    A: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.


    Q:What’s the difference between ADW300 and ADW300W


    A: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.


    Q:What do 3×57.7/100V,3×220/380V,3×380/660V,3×100V,3×380V,3×660V represent respectively?


    A: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.

  • 1. Function Overview

    ParameterDescription&Value
    Input 
    Voltage
    Nominal Voltage

    For High Voltage: 3×57.7/100V (3 phase 4 wires)

    (Paired with PT)    3×100V (3 phase 3 wires)
    ------------------------------------------------------------------------------------
    For Low Voltage:  3×220/380V (3 phase 4 wires)
    (Direct Connect)   3×380/660V (3 phase 4 wires)
                                   3×380V (3 phase 3 wires)
                                   3×660V (3 phase 3 wires)
    Frequency50Hz~60Hz
    Comsumption<0.5 VA (Each phase)
    Input
    Current
    3×1(6)A ;3×1(6)A(ADW300W), 3×20(100)A(ADW300W)
    1‰ Ib (Class 0.5S),4‰ Ib (Class 1)
    <1VA (Each phase)
    Auxiliary
    Power
    Power SupplyAC 85~265V
    Power consumption<2W
    Measurement
    Performance
    StandardIEC 62053-22:2003,IEC 62053-21:2003
    Active Power AccuracyClass 0.5S(ADW300)
    Class 1(ADW300W)
    Temperature Measuring Accuracy±2℃
    Pulse
    Width of pulse80±20ms
    Pulse constant6400imp/kWh , 400imp/kWh
    Communication
    Wireless
    Communication
    4G (built in world-wide 4G module for global server frequency bands)
           LoRa  (frequency 470MHz)  NB-IoT, RS485 (standard MODBUS-RTU)
    Infrared
    Communication
    Constant baud rate 1200
    InterfaceRS485(A+、B-)
    Connection ModeShielded twisted pair conductors
    ProtocolMODBUS-RTU
    Environment
    Operating Temperature-20℃~55℃
    Storage Temperature-40℃~70℃
    Humidity≤95% (No condensation)
    Altitude<2000m

    2. Main Parameters

    ParameterDescription&Value
    Voltage
    Input
    Rated Voltage

    3x380~456Vac L-L or 3x660~792Vac L-L (via direct connection)

    3x100~120Vac L-L (via PTs)

    Reference Frequency45~65Hz
    Power Consumption<0.5VA (each Phase)
    Current
    Input
    Rated Current3x1(6)A AC (via CTs)
    Starting Current1% Ib (Class 0.5); 4% Ib(Class 1)
    Power Consumption<1VA (each Phase)
    Phase
    Wiring
    3P4W3-phase 4-wire
    3P3W3-phase 3-wire
    Auxiliary
    Power
    Supply
    Voltage Range85~265Vac
    Power Consumption<2W
    Measurement
    Performance
    Standard

    IEC 62053-22:2003;  IEC 62053-21:2003

    kWh AccuracyClass 0.5S
    Pulse
    Width of Pulse80±20ms
    Pulse Constant6400imp/kWh; 400imp/kWh


    3. Environment

    ConditionDescription&Value
    Temperature

    Operating Temperature: -20℃+55℃;  Storage Temperature: -40°C ~+70°C

    Humidity

    ≤95%RH,no condensation,without corrosive gas

    Altitude

    ≤ 2000m


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    ADW300 Dimension Diagram



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    ADW300 rendering