Using a Multi Meter to Measure Amps

 To use a digital multimeter (DMM) to measure direct current (DC) amps, or amperes, in a circuit, you can try these steps:

Read the manual: Understand how to safely use your specific model.

Plug in the leads: Insert the red lead into the 10 amps port and the black lead into the COM port.

Turn it on: Turn on the multimeter and set it to current mode.

Select the range: Choose the appropriate range for your application. If you're not sure what the current value is, you can start with the 10 amps port and then switch to a lower range if the value is under 200 milliamps.

Break the circuit: Connect the DMM to the circuit so it becomes part of it, breaking the circuit and forcing the current to flow through the multimeter. For example, if you're measuring the current on a breadboard, you can break the circuit by moving the resistor lead over a couple of rows.

Take the reading: You should now get a reading.