Main features of pre-paid energy meters :
Metering: A dedicated chip is used for energy collection, with stable functions and high metering accuracy.
Prepayment: Users pay first and then use electricity.
Data return function: After the electricity purchase card is inserted into the electricity meter, the energy meter will return the user's total electricity consumption, total purchased electricity and other important information to the electricity card, so that the power supply department can grasp and handle the user's electricity consumption.
When the user's remaining power reaches the alarm power level 1, the yellow indicator flashes, prompting the user to purchase power in a timely manner.
When the user's remaining power reaches the power failure alarm power level 2, the power meter automatically powers down, prompting the user to purchase power, and the user recovers normal power after piercing the card.
Arrearage pull function: When the remaining power reaches the arrearage limit, the energy meter automatically cuts off the power.
Load Constraint: When the user's power load exceeds the set limit, the power meter will automatically power off, and the power will be recovered after a delay of 1 minute or penetration of the card.
Hoarding constraints: When a user purchases and recharges electricity, the sum of the remaining electricity in the table and the current electricity purchase cannot exceed the hoarding limit, otherwise the recharge will fail.
Overdraft constraint: Users can be given a certain amount of overdraft electricity according to their needs. When the overdraft limit is used up, the power meter will automatically power off.
Parameter settings: alarm power 1, alarm power 2, hoarding limit, overdraft limit, load limit and other parameters can be set according to demand.
Power-off function: The user can request power-off according to demand, and quit the remaining power in the table. After power-off, the energy meter will clear the user's power consumption information and other data.
Visualization: The LCD screen with Chinese characters is used to cyclically display the user's power consumption, purchase power and remaining power information, which is clear, intuitive and easy to read.
Data storage: Use industrial-grade dedicated data storage chips with strong anti-interference ability.
In the event of a power failure, all data is stored for at least 10 years.