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 |
3-phase 4-wire connection 3-phase 3-wire connection
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.
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1. Function Overview
Parameter | Description&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) |
Frequency | 50Hz~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 Supply | AC 85~265V |
Power consumption | <2W | |
Measurement Performance | Standard | IEC 62053-22:2003,IEC 62053-21:2003 |
Active Power Accuracy | Class 0.5S(ADW300) Class 1(ADW300W) | |
Temperature Measuring Accuracy | ±2℃ | |
Pulse | Width of pulse | 80±20ms |
Pulse constant | 6400imp/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 | |
Interface | RS485(A+、B-) | |
Connection Mode | Shielded twisted pair conductors | |
Protocol | MODBUS-RTU | |
Environment | Operating Temperature | -20℃~55℃ |
Storage Temperature | -40℃~70℃ | |
Humidity | ≤95% (No condensation) | |
Altitude | <2000m |
2. Main Parameters
Parameter | Description&Value | |
Voltage Input | Rated 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) | |
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 Wiring | 3P4W | 3-phase 4-wire |
3P3W | 3-phase 3-wire | |
Auxiliary Power Supply | Voltage Range | 85~265Vac |
Power Consumption | <2W | |
Measurement Performance | Standard | IEC 62053-22:2003; IEC 62053-21:2003 |
kWh Accuracy | Class 0.5S | |
Pulse | Width 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