I'm feeling dumb right now. I want to measure how many amps my elec fan draws at initial ramp up and then at full spin. Red lead in 20A (+) and black in COM (-). Meter setting to 20A range in DC mode. Fan NEG connected to ground (-). So far sound right? Now I thought I should put the meter in series with the power lead; i.e. between the power source and the fan (+). Reading the instructions from the multimeter... this sounds fine so far, but then it says Is this reference to the negative side of the circuit referring to the ground or the side of the (+) wire between the power source and the meter?