The three phase electricity meter multi-function intelligent electric energy meter uses the LCD screen to display the value of the electric energy, with a total of eight significant digits, of which two significant digits after the decimal point. It stands to reason that within a certain period of time, the increment of the total electric energy measured should be equal to the sum of the increment of electric energy at different periods of the statistical time. However, sometimes it may happen that the sum of the electric energy increments in different periods of a certain statistical time is not equal to the indicated value of the total electric energy increment at that time, that is, one or two digits appear in the second decimal place at the end. Indication error.

It may be due to:

  1. Electric energy indication error
  2. Electric energy indication error during tariff period
  3. Counting display value combination error

These calculated error values ​​are based on Chinese standards. The indication error of the multi-function Electromechanical KWh Meter is less than or equal to 0.03, and no more than 0.03 is in line with the national label value error requirements.