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
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