What do the codes of smart water meters represent

1. Smart water meter display EC24: Copying meter B requires the user to use meter A once, which occurs during the operation of replacing the meter;

2. Display EC23 conversion card label error and check if it is a function card or user card;

3. EC22 shows that the number of purchases is not common, indicating that the feedback is not common;

4. The EC21 user code displayed on the smart water meter is different. Check if the card is inserted incorrectly;

5. Display that EC20 account opening cards have not been purchased zero times/user cards that have already been used cannot be used in the reset table. Check if the table numbers are common. If they are not common, please use the system card to change them back;

6. The user card with EC19 version number error cannot be used. Please check if the software versions are common;

7. The smart water meter displays EC18 function card beyond the usage date and rewrites the function card;

8. Perform card replacement processing for data verification errors identified in the EC17 management system;

9. Display non BCD code data written in EC16 management system for card replacement processing;

10. The smart water meter shows that the EC15 user card has exceeded the reserved quantity and the error water meter is less than 10 cubic meters. Recharge is required;

11. Clear the error of inconsistency in the total purchase quantity of EC14 water cards and open a new account;

12. Display the system positioning card used by EC13 in the water meter that has already been opened, and change the system positioning card to this system positioning card without joint fault;

13. If the sub meter number of EC11 water meter is greater than 7 or the setting value of the system setting card is greater than 7, a new meter should be processed for the fault;

14. After successfully displaying the EC10 code, the values are not equal. If this is not possible, please proceed with card replacement;

15. The smart water meter displays EC09 code error, and the counter value is not restored to 1. If this is not possible, please perform card replacement processing;

16. Display EC08 recovery password error, counter bit 1 failed to reinsert card. If not possible, please perform card replacement processing;

17. Failed to display the EC07 comparison code for card replacement processing;

18. Display the number of errors in EC06 writing (reducing) the secret code and reinsert the card. If it is not possible, please perform card replacement processing;

19. The smart water meter displays EC05 IC card code error counter bit 0, indicating an error and requiring card replacement processing;

20. EC04 company symbol error card appears due to moisture, please replace the card;

21. Display EC03 function code error, insert card incorrectly, rewrite card;

22. If the EC80 system code is incorrect, rewrite the system card;

23. The smart water meter shows that EC01 is not an SLE4428 card, or the card is inserted incorrectly. Check if it is our company's IC card and if the card is inserted incorrectly;

24. The EC00 IC card power supply is abnormal and needs to be replaced with a new water meter