Help with shunt ammeter
I just got one of these from ebay: I am trying to read V and Amps while charging a battery on the bench. I have the shunt attached to the negative battery post, and the charger clamped to ...
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Off low, or off high? A difficulty in calibration is knowing exactly the value that you are trying to set. It is possible that your reference meter is off slightly, and the digital meter is off slightly. If you have a good multimeter, measure the output voltage of the shunt, 75 mV is 30 A and you will have a better sense.
Remember the stated accuracy of clip on meters and off the shunt with its meter. Digital meters are also +/- one count, so if you are measuring XX.X, the last digit could differ by 0.2 without even considering the stated accuracy.
Glad you are making progress.
Remember the stated accuracy of clip on meters and off the shunt with its meter. Digital meters are also +/- one count, so if you are measuring XX.X, the last digit could differ by 0.2 without even considering the stated accuracy.
Glad you are making progress.
