Hi all,
I have experienced an odd thing today whilst measuring voltage drop in my wiring system.
I measured a voltage drop of around 200mv from battery terminal to amplifier terminal playing a 50hz sine wave through the system at something approaching full output. The total current draw I estimate to be 120 amps and so this is good.
Out of curiosity and to measure the battery/alternator systemic voltage drop at full power I put the probes of the voltmeter on the the postive and negative distribution blocks and cranked up the test tone.
To my surprise I measured ~6.5 volts DC.
Wondering if the power draw of the sinusoidal test tone was making the meter think it was measuring AC I switched it over and read ~7 volts AC.
These are impossible numbers, the amps would turn themselves off at 6.5v DC, can anyone explain what is going here please?
Is it just a limitation of the meter and if so how would I measure voltage at full power out?
I have experienced an odd thing today whilst measuring voltage drop in my wiring system.
I measured a voltage drop of around 200mv from battery terminal to amplifier terminal playing a 50hz sine wave through the system at something approaching full output. The total current draw I estimate to be 120 amps and so this is good.
Out of curiosity and to measure the battery/alternator systemic voltage drop at full power I put the probes of the voltmeter on the the postive and negative distribution blocks and cranked up the test tone.
To my surprise I measured ~6.5 volts DC.
Wondering if the power draw of the sinusoidal test tone was making the meter think it was measuring AC I switched it over and read ~7 volts AC.
These are impossible numbers, the amps would turn themselves off at 6.5v DC, can anyone explain what is going here please?
Is it just a limitation of the meter and if so how would I measure voltage at full power out?
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