| After-sales Service: | Yes |
|---|---|
| Warranty: | 2 Years |
| Display: | Digital |
| Samples: |
|---|
| Customization: |
|---|
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
| Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
Suppliers with verified business licenses
Audited Supplier ADW300 Wireless Metering Meter is mainly used to metering three phase active energy on low voltage network. The product boasts of advantages including compact size, high precision, rich features. According to different requirements, there are many communications functions like RS485 communication,lora,2G,NB,4G, adding the new current sampling mode using external transformer. It can be flexibly installed in the distribution box to achieve sub-item electric energy metering, operation and maintenance supervision or power monitoring requirements for different regions and different loads.
Communication Function
WiFi
4G
Lora
Lorawan
NB-IOT
RS485(Modbus-RTU)
It can work with IOT Platform
Electricity Data Measurement
kWh (positive and negative)
kVarh (positive and negative)
U, I, P, Q, S, PF, Hz, etc.
Harmonic (THDv, 2-31st)
3-phase current & voltage imbalance
Multi tariff
Max demand, etc.
12 months' historical data
2 DO Digital Output
4 DI Digital Input
Accuracy:Class 0.5S
Measures temperature of A/B/C/N
Measures 1 channel of leakage current
Power outage alarm
HMI Programming: Setting of CT/PT Ratio, Phase Wiring, Communication and etc
Standard&Certificate: CE; IEC
Local Configuration
Keypads HMI for Setting (CT/PT ratio, Wiring and etc)
Setting through Adjustment Software
| Voltage input | Rated voltage | 3×57.7/100V,3×220/380V,3×380/660V,3×100V, 3×380V,3×660V |
| Reference frequency | 50Hz | |
| Consumption | <0.5VA (Each phase) | |
| Current input | Input current | 3×1(6)A ;3×1(6)A(ADW300W), 3×20(100)A(ADW300W) |
| Start current | 1‰ Ib (Class 0.5S),4‰ Ib (Class 1) | |
| Consumption | <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 energy accuracy | Class 0.5S(ADW300),Class 1(ADW300W) | |
| Temperature accuracy | ±2ºC | |
| Pulse | Width of pulse | 80±20ms |
| Pulse constant | 6400imp/kWh , 400imp/kWh | |
| Temperature range | Operating temperature | -20ºC~55ºC |
| Storage temperature | -40ºC~70ºC | |
| Humidity | ≤95% (No condensation) | |
| Altitude | <2000m | |
Q: What's the biggest advantage of ADW300?
A: 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.
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 reply you as soon as possible.
Founded in 2003, Acre is a high-tech joint-stock company integrating R&D, production, sales and service, providing electric equipment, energy management platforms and electricity safety solutions for customers. We help users realize intelligent, visualized and refined energy management, improves energy efficiency and energy security, and provides data services, save energy and reduce energy consumption and realize energy digitization construction. Headquartered in Jiading, Shanghai, with the office area of 30,000 square meters, it is the center of our Research & development, system integration and marketing, with 3 R & D departments, 1 technical management department and 2 public technology centers. And we have another R&D center in Jiangyin. Over 300 R&D engineers are in the two centers. Acrel's production base locates in Jiangyin, Jiangsu, 138 kilometers away from Jiading, with 2 large-scale factories. It is divided into 3 sectors: instrument business division, energy saving and controlling business division, and electric power sensor business division. By 2022, Acrel owns 5 trademarks, 20 invention patents, 121 utility model patents, 146 appearance patents, 19 professional papers in core journals, 231 computer software Copyrights, and participates in the formulation of many national or industrial standards. There are over 2.8 million annual output of energy meters, current sensors, energy-saving cabinets and other electric products. All our products and energy management systems are independently developed with sales of $ 125 million in domestic and overseas markets, mainly cooperating with engineering companies, contractors and distributors, etc..
1. who are we?
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}