● Communication Protocol: MQTT, MODBUS-RTU, MODBUS-TCP,UDP,HTTP
● Measurement: 3-phase Active Power, Reactive Power, Current, Voltage, Harmonic and etc.
● Application Scenario: Building, Factory, Smart Grids, DB Room and etc
● Rated Voltage: Up to 3x660~792Vac L-L
● Rated Current: 3x1(6)A AC (via CTs)
● HMI Programming: Setting of CT/PT Ratio, Phase Wiring, Communication and etc
● Standard&Certificate: CE; IEC; LVD
PRODUCTS
Features
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
DO/DI Switch Function
● 2 DO Digital Output
● 4 DI Digital Input
Residual Current Measurement Function
● 1-channel Residual Current
● Paired with Residual Current CTs
Temperature Monitoring Function
● Thermistor: NTC
● Monitoring: 4-channel Cable Temperature (for A,B,C,N)
● Range: -40℃~+99℃
● Accuracy: ±2℃
LCD Display
● Parameter Display
● Programming Interface
Local Configuration
● Keypads HMI for Setting
● Setting through Adjustment Software
Display Sample
Wiring Illustration
3-phase 4-wire connection 3-phase 3-wire connection
Typical Networking Connection
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
Parameter Description&Value InputVoltageNominal 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)Frequency 50Hz~60Hz Comsumption ＜0.5 VA (Each phase) InputCurrent3×1(6)A ；3×1(6)A（ADW300W）, 3×20(100)A（ADW300W） 1‰ Ib (Class 0.5S)，4‰ Ib (Class 1) <1VA (Each phase) AuxiliaryPowerPower Supply AC 85~265V Power consumption <2W MeasurementPerformanceStandard IEC 62053-22:2003，IEC 62053-21:2003 Active Power Accuracy Class 0.5S（ADW300） Class 1（ADW300W）Temperature Measuring Accuracy ±2℃ PulseWidth of pulse 80±20ms Pulse constant 6400imp/kWh , 400imp/kWh CommunicationWireless Communication4G (built in world-wide 4G module for global server frequency bands)LoRa (frequency 470MHz) NB-IoT, RS485 (standard MODBUS-RTU)Infrared CommunicationConstant baud rate 1200 Interface RS485(A+、B-) Connection Mode Shielded twisted pair conductors Protocol MODBUS-RTU EnvironmentOperating Temperature -20℃~55℃ Storage Temperature -40℃~70℃ Humidity ≤95% (No condensation) Altitude ＜2000m 2. Main Parameters
Parameter Description&Value VoltageInputRated Voltage 3x380~456Vac L-L or 3x660~792Vac L-L (via direct connection)
3x100~120Vac L-L (via PTs)
Reference Frequency 45~65Hz Power Consumption ＜0.5VA (each Phase) CurrentInputRated Current 3x1(6)A AC (via CTs) Starting Current 1% Ib (Class 0.5); 4% Ib(Class 1) Power Consumption ＜1VA (each Phase) PhaseWiring3P4W 3-phase 4-wire 3P3W 3-phase 3-wire AuxiliaryPowerSupplyVoltage Range 85~265Vac Power Consumption ＜2W MeasurementPerformanceStandard IEC 62053-22:2003; IEC 62053-21:2003
kWh Accuracy Class 0.5S PulseWidth of Pulse 80±20ms Pulse Constant 6400imp/kWh; 400imp/kWh 3. Environment
Condition Description&Value Temperature Operating Temperature: -20℃～+55℃; Storage Temperature: -40°C ~+70°C
Humidity ≤95%RH,no condensation,without corrosive gas
Altitude ≤ 2000m
ADW300 Dimension Diagram
ADW300 rendering
