The BLACK lead plugs into COM (for 'common' or ground)
The RED lead plugs into the center

Choose one of the settings in the (DC voltage) sector, top left.
We will typically use the 20 (20 Volt max) setting
or the 2000 m (2000 milliVolts = 2 Volts max) setting.

Choose one of the settings in the (DC current) sector, top right.
We will typically use the 10 or 200m (10 milliAmperes or 200 mA setting

Choose one of the settings in the (Ohms) sector, center bottom
Use the special (beep) setting to check continuity