[Mathlete]

Not sure if I plug the black lead into the left 10A port or the center COM port.

 

[Oso954]

The black lead goes in the common jack. Red in the the volt, ohm,mA Jack. If you are measuring on the 10 amp scales, you would move the red lead to the 10A jack.

 

[ddawg16]

"COM" is short for 'common'.

As Oso said, black in the COM, red in the V ma jack.

You might want to read the manual.

Side note.....the colors illustrate one of the issues with color codes.

With AC, black is hot, white is neutral. Hence, you would typically connect your black lead to the white wire and the red lead to the black wire.

Let me know if you're not confused enough.....