Itadopted ADE7755 chip to achieve accurate measurement within large dynamic range, and have also used single chip with high reliability and low power consumption, achieving total power measurement and state control.
They are featured with high accuracy, good stability, long lifespan, strong overload capacity and high reliability, considered as ideal watt-hour meter products for remote meter reading.
Standard :
IEC 62052-21 Electricity metering equipment (a.c.) –Part 21: Tariff and load control equipments.
IEC 62053-23 Electricity metering equipment (a.c.) –Particular requirements –Part 23:Static meters for reactive energy(classes 2 and 3)
Functions
1. Power Measurement function
It can measure the total (positive and negative) active power, and the reverse power will be accumulated by positive power.
2. Multi-rate function
With time-measuring of active power, it can freely program 4 rates and 8 time consumption.
3. Freeze function
Freeze and store automatically the power consumption in each hour, at zero o' clock, as well as at zero o' clock on the monthly settlement day.
4. Measurement function
It can measure such network parameters as voltage, current, power, power factor, etc.
5. Power-on and power-off control
It can accept the command and execute its power-on or power-off control.
6. Relay state detection
The meter can test whether the relay is on or off at any moment. It can execute automatically maintenance if the state becomes abnormal.
7. Events recording function
It can record events including opening meter cover, programming, and power-on and power-off state.
8. Power failure display function
It can display the current power consumption in interval during power failure.
Selectable Extended and Unextended Terminal Cover (Optional)
| Accuracy Class | 1 or 2 |
| Reference Voltage Un(V) | 220 |
| Operating Voltage | 0.7 Un ~ 1.2 Un |
| Rated Current Ib(A) | 1.5(6),5(30),10(40),10(60),20(80) |
| Starting Current | 0.002Ib |
| Rated Frequency | 50Hz |
| Power Consumption | <1W ,2VA |
| Display Mode | LCD |
| Communication Interface | Infrared, RS485/low-voltage power line carrier |
| Overall Dimensions | 160mm´122mm´70mm |
| Work Environment | Normal operating temperature: -30°C~+55°C
Limit of operating temperature: -45°C~+70°C
Storage and transport temperature: -45°C~+70°C
Storage and Operating humidity: ≤95% |
Wuhan Radarking Electronics Corp. is a high-tech corporation which established in 2002. As professional manufacture in meters, our mainly products including: Full Digital IC Card Prepayment Electronic Meters, Smart Electronic Meters, IC Card Prepayment Water Meters, Gas Meters as well as Meter (network) Reading System. We are one of the few manufacturers in Hubei Province whose annual production of electronic meters and water meters can be up to 2.4 million sets.
Employee: There are more than 200 employees including 50 technicians, 10 senior technical staff and 70 employees who have already got college degree, 30 of them obtained metrological verification certificate. Production and technical staff all undergo a rigorous pre-service training, who are skilled and have a strong sense of quality.
Technology: We have a R & D group of 20 persons (About 10% of the company's employees).
Equipment: We have 260 sets of production and testing equipments, including 7 production lines, more than 20 units of the calibration device such as wave soldering machine, reflow soldering machine, automatic placement machine, plug-in assembly lines, assembly lines, packing lines and etc, which have all meet the production requirement.
Material: Materials are in strict accordance with the requirements of the meters and the procurement of national standards, we have already established a qualified supplier evaluation system, and developed a series of test standard. All the materials have to pass strict test before entering into factory, and then be used in production. Measures have been taken to prevent damp and static electricity to ensure the normal performance of the raw materials.
Craft: To make a variety of electronic meters in accordance with the production process, we have developed process documents, to ensure the quality of the products.
Test: We have electronic meter laboratory and full range of test equipments, such as EMC Equipment (ESD, EFTB, SURGE, RF, Attenuation Oscillasion Impulse, DIP, Impulse Current, Pulsed Voltage and etc), Environmental Test Equipment (Alternating Temperature Humidity Test Chamber, Dust Test Devices, Waterproof Test Device, Shock Test Device, Vibration Test Device and etc), R&D Testing Equipment. We make a variety of electronic meters in accordance with the test and develop our test documents to ensure the quality of the products.
Environment: Our production base covers an area of 30 acres, and self-building workshop covers an area of 7000 square meters, production and storage area covers more than 5000 square meters.
Management: We have a high efficiency, innovative, serious management team, and the factory has already passed ISO9001-2008 QMS.
