Hi, everyone. Just signed up to the forum.
I recently purchased a true sine power inverter (converts ~12VDC to ~115VAC) and would like to measure its wattage output whilst something is plugged into it. I know kill-a-watt type meters are good for doing this, but I don't have one. I do, however, an AC clamp meter. Can I get the amp reading from the meter then multiply it by the line voltage to get total the power? If so, should I use the voltage value when the inverter is under the load in question or in no load? I ask 'cause the values do tend to differ some.
I recently purchased a true sine power inverter (converts ~12VDC to ~115VAC) and would like to measure its wattage output whilst something is plugged into it. I know kill-a-watt type meters are good for doing this, but I don't have one. I do, however, an AC clamp meter. Can I get the amp reading from the meter then multiply it by the line voltage to get total the power? If so, should I use the voltage value when the inverter is under the load in question or in no load? I ask 'cause the values do tend to differ some.