Multimeter & Oscilloscopes

Diode Testing

Diode has two terminals Anode (+) and Cathode (-). Terminals can be identified by the shaded portion or a ring at the end of the diode. Terminal near the shaded portion or ring is Cathode (-) and other one is anode (+).

1.

Turn the power off to the device and discharge any capacitors!

6.

Diodes are tested in Parallel .

7. Take note of the reading on the LCD, normally read around 0.5v – 0.8v.

2. Plug the black test lead into the COM terminal & the read lead into the V terminal.

3. Set the function switch to Diode test.

4.

Place the red lead on the Anode (+).

5.

Place the black lead on the Cathode (-).