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What isCard prepaid electricity meter
Prepaid electricity meter is also called quantitative electricity meter and IC card electricity meter. In addition to the metering function of ordinary electric energy meters, in particular, the user buys electricity first, and then can use electricity after buying electricity.
Card prepaid meterCommon pre-storage methods
There are two pre-storage methods, one is code type, the other is A type of writing card. The code-based principle is: the management system combines user information and electricity purchase information to generate a set of encrypted codes, which are then handed over to the user to input into the electricity meter. Card writing type: Write the pre-purchased electricity or amount into a dedicated electronic card (memory), and hand it over to the user holding the electronic card to communicate with the corresponding electric meter, and the pre-purchased value is automatically sent to the electric meter.
How to check the balance of prepaid electricity meters
There are many manufacturers of prepaid electricity meters in my country, and each product has its own differences. You can actually look at the prepaid electricity meter in the following ways:
1. If the electricity is turned on, the description of the electricity meter is not displayed, but the electricity is being used. Then after you insert the card, it will show the remaining power.
2. Some electric meters are divided into total usage and remaining electricity to display back and forth, so you can see the small red dot in front of the total usage or remaining electricity. Where the little red dot is, it shows where the electricity is. .
3. Some can look directly above, and the LCD screen above will display directly in Chinese characters: how much power is left.
How to understandCard prepaid meter reading
Usually in total electricity consumption, remaining electricity and accumulated total purchase Alternate display status of the three items of electricity (alternating for 3 seconds), and has corresponding Chinese characters to display various statuses of the meter. Insert the detection card or other card but do not pull it out, the electric energy meter enters the automatic display state (the interval between the display items is 3 seconds), and the electric energy meter displays all the displayed items in a circular manner. The displayed items are as follows:
