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According to power coefficient= Calibration power cycle* Calibration power, power

frequency of at 1000W is:

����1���� ∗ 10^9

Power coefficient ∗ ����2����

(Note: Refer to 3.5.2 for valuing of V1R and V2R)

Then, actual value of electric quantity at present is:

Current power (kW. h)=

total number of pulses

Number of pulses a kilowatt hour

=

���� × 65536 + ����

It is one kilowatt hour when 1000W load operates by one hour.

example is the number of pulses after 1000W load operates by one hour. It means the number of

pulses generated by one kilowatt hour. Operating time of the load will change if the load varies

when the number of pulses in one kilowatt hour remains unchanged.

As for different hardware, theoretical value of number of pulses in one kilowatt hour

deviates from the actual value. If higher measuring accuracy is required, actual

be used for calculation.

3.8 voltage, current, active power calculation reference flow chart

In order to represent the voltage, current and active power flow, a typical application flow

chart is introduced.

3.8.1 voltage operation reference flow chart