Method 1: Directly call out the current power data (applicable to the smart meter installed in the power sector)
Press the button on the meter to switch the content of the screen, until the meter screen on the right side of the unit is only left "kW" words, at this time on the screen, the number is the power consumption in kilowatts. The number on the screen is the power consumption in kilowatts.
Scheme 2: Calculate the pulse indicator blinking period (applicable to all electronic energy meters)
First, find the pulse constant of the meter (usually printed on the front of the meter, the unit is imp/kWh), and then measure the time between two consecutive blinks of the meter's pulse indicator (an irregularly blinking red light) by using a stopwatch. Then use a stopwatch to measure the interval between two consecutive flashes of the meter pulse indicator (a red light that does not blink regularly) (in seconds), the following formula can be used to calculate the average power (in watts) between the two flashes:
P=3600000 ÷ Pulse Constant ÷ time interval between the two flashes.