Prepaid smart meters should be installed vertically

Prepaid smart meters should be installed vertically and connected according to the wiring diagram.
Prepaid intelligent single-phase code table
Prepaid intelligent single-phase code table
1. Open the cover of the terminal knob box of the electric energy meter, then connect the terminals according to the wiring diagram and turn on the power supply.
Two users insert the pre purchased power IC card into the meter in the direction of the arrow on the card (with the metal contact facing left). The display first shows F1, then displays the purchased power for this time, and then stabilizes at F2. The display then shows the sum of the original remaining power and the newly purchased power as the current remaining power. At this point, the IC card can be removed and the display will turn off. If the remaining power in the meter is lower than the displayed alarm power, the display will remain on. If the sum of the remaining power in the meter and the power in the purchase card is greater than 9999 kWh, the power in the card will not be input into the meter and will still be saved in the card. )
When the user uses electricity, the pulse indicator light will flash accordingly.
During normal use, prepaid electricity meters automatically calculate a decrease in the amount of electricity purchased. When the remaining power in the energy meter is less than 20 kWh, the display will show the current remaining power to remind the user to purchase electricity. When the remaining power is equal to 10 kWh, a power outage will remind the user to purchase electricity. At this time, the user needs to insert the IC card into the energy meter to restore power supply once. Stop power supply when the remaining battery level is zero.
5. One meter, one card. After each new purchase of electricity, users can only insert their own meter to input the valid electricity once.
6. Prepaid electricity meter displays usually do not light up. If users need to check the remaining power, they can insert an IC card into the meter, which will display F1 for purchased power, zero F2 for remaining power, and turn off when unplugged.
Every time the user inserts the IC card into the prepaid electricity meter, the meter will write back all the user's electricity usage information on the IC card. When the user purchases electricity next time, the electricity sales management system will read the IC card data summary and check whether the user is using electricity legally. Electricity inspectors can also use inspection cards to check the user's electricity usage.
The power supply management department sets the maximum electricity load for users based on the actual situation. When the actual electricity load exceeds the set value, power supply is stopped and the meter display shows "E2", reminding the user to reduce the electricity load. The user needs to insert the IC card into the meter to restore power supply.