During the operation of the meter, the remaining power and total power consumption in the meter are displayed in turn every 30 seconds. (When the small indicator light in the upper left corner of the display is on, the total power consumption will be displayed; When the small indicator light in the lower left corner of the display lights up, the remaining power is displayed)
1. The total electricity consumption is displayed in two sections: the first section displays the values of 100000 bits, 1 000 bits, and the second section displays the values of 1 0,1and decimal places;
2. The remaining power is displayed in two parts: the first part displays the values of thousands and hundreds, and then displays the values of tens, units and decimal places.
2. Preparation for purchasing electricity: Before purchasing electricity, the user must insert the IC card into the card holder at one time, so as to send the data in the table back to the computer database.
Power purchase method: when selling electricity, insert the IC card into the IC card reader, and at the same time operate the computer to encrypt the user number, pre-purchased power, alarm power, power limit method and power limit into the IC card.
Use of electric card: insert the electric card into the card holder. If it is a valid electricity purchase card, the electricity meter will automatically read the data into the electricity meter, and the LCD electricity meter display screen will display: electricity purchase, total electricity purchase, number of electricity meters, alarm power, credit limit and capacity limit power in turn. Please take good care of the card.
Operation display: during the operation of the instrument, the remaining power and total power consumption in the instrument are displayed in turn.
Overcapacity alarm: If the "alarm indicator light" flashes quickly during the operation of the electricity meter, it will warn the user that the electricity consumption has exceeded the capacity. If the meter is set to power-off and capacity-limiting mode, the switch will be turned on for 3 minutes after 30 seconds of power consumption, and the countdown will show (180 seconds) the power recovery time; If the user responds by inserting a card, the power can be restored immediately.
Hoarding limit: if the purchased power+remaining power+hoarding limit (10000kwh), the purchased power will not be read in, and the display screen will display the "remaining power" prompt, and the power in the card will still be valid.
Early warning reminder: When the remaining power in the meter is less than 2 times of the "alarm power", the "alarm indicator" will flash (interval 1 second) to remind users to buy electricity. At this time, if the card is inserted, the flashing interval of the "alarm indicator" will be changed to 2 seconds, which can avoid the warning of power failure.