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.
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)
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)|
|Rated Frequency ||50Hz|
|Power Consumption||<1W ,2VA|
|Communication Interface||Infrared, RS485/low-voltage power line carrier|
|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%
*Please advise us if you need any different specifications,we can make according to your special requirement.
Transportaion & Storage Condition
The meters should be free from violent collision when being delivered or sealed off, and the buyer should in accord with the rules of ZBW003-82/84 for General Technical Conditions Of Instrument And Apparatus Packaging to transport and store them.
The meter should be stored in its original pack and the ambient temperature to keep them should be within -25ºC and 70ºC, there are no corrosive gas in the air.
The meter should be placed on the shelves in the warehouse and the stack height should be less than 5 cartons.
There shall be no harmful substance causing the corrosion in the air.