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how do you specify DCEN or DCEP ? polarity on this machine was just AC or DC. so, if you are using DC and want electrode positive or negative, I do not see how to specify this. please explain. thank you.
how do you specify DCEN or DCEP ? polarity on this machine was just AC or DC. so, if you are using DC and want electrode positive or negative, I do not see how to specify this. please explain. thank you.