I can not quite comprehend my I can not quite comprehend my measurements

my merter  readout says :

232,78 Volt   0,14 Amps   4 Watt

i mean there is an error in the amp measurement

V * A = Watt
232.78 * 0.14 = 32.98 watts


but I know that the 4 watts are correct as I have tested with another watt meter ยจ

and the voltage also fits so it is probably a fault in the amperes

i run version ATV1.75.58@MX1290 of firmware

and it seems that my meter restarts approx. every 12 hours I can see it from the run counter on the web page of the meter

i do not know on kwh the measurement is affected

do you have any explanation for this ??


best regards Lars Madsen


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how sorry i forgot to write it is a Single phase WiFi energy meter (WEM3080)

Hi lars:

The power reading in WEM3080 is active power ,not apparent power(apparent power = V*I).

  

active power= V*I* power factor.


BR


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