What does Xi An Qi Jing's electronic one-time prepayment watt-hour meter show c007?

C007 code indicates relay failure. Except for the three-phase 1.5 6A mutual inductance meter (external circuit breaker), it is suspected that the meter is broken. There are three forms of relay failure:

One is false alarm, that is, there is no problem when the check card of the property is inserted or the maintenance card no longer appears in the future;

The second is that the relay is broken, and there is no power and no output when there is residual power;

The third is that the power supply will not stop when the relay is disconnected and the remaining power is zero, or when the check card is disconnected; In the second and third cases, it is generally necessary to change an electric meter.

(1) If C000 is displayed, it means that the purchased electricity is used up and needs to be purchased again.

(2) If C00 1 is displayed, it means that the remaining power of the meter is equal to the power shortage alarm power.

(3) If C002 is displayed, it means that the user load exceeds the maximum power load setting value.

(4) If C003 shows that the user has not used electricity for 6 consecutive days or the user has shorted the line, the power meter will be automatically cut off. Users can only resume using electricity after inserting IC card.

⑤ If the following symbols C004, C006 and C008 are displayed, please inform the maintenance management personnel in time for handling.

Extended data:

Functions and characteristics

1, active energy measurement, long-term work without adjustment;

2. One meter (household) and one card have good security;

3. When the remaining power is equal to the alarm power, the digital tube is always on to remind the user to buy power in time;

4. When the remaining power is 0, trip and power off;

5, anti-stealing, automatic recording of illegal electricity information;

6, overload automatic power failure, which is convenient for the power sector to increase capacity;

7. Large-capacity magnetic field latching relay with low power consumption and high reliability;

8. It has data write-back function, which is convenient for power sector management;

9. All components in the electric meter are electronic components with long life and high reliability, so they have the characteristics of long life and high reliability;

10, and the supporting IC card sales management system has complete sales management and power consumption monitoring functions.

Baidu Encyclopedia-Single-phase Prepaid Electric Meter