Hi, I bought this Power Meter
from Maplins to measure my power consumption:
However, I have a problem with the readings it is giving me for volt-amps and watts. If I understand this right, the watts, as a measure of real power
, should equal the volt-amps being drawn if the power factor is 1. As my PSU is rated an Active PFC of 0.99, the reading from watts and volt-amps should be roughly equivalent, correct?
But the two are wildly different on it. Volt-amps measures 167 and watts a mere 21, and the device give me a power factor of 0.11. I got a similar PF from an ordinary 60W bulb. Is this device nackered, or am I missing something?
Thanks for your help!