![]() If the meter fails to show above readings, then the diode is said to be defective or bad.If the meter indicates OL or a very high resistance, then it refers to the perfect condition of the diode.In this case, the diode is said to be in reverse bias. Now put the selector in high resistance position and reverse the terminals of the meter by connecting positive terminal to the cathode and negative terminal to anode.If the meter indicates a low resistance value, then it says that the diode is healthy.Connect the positive terminal of the diode to the positive terminal of the multimeter.Connect the negative terminal of the diode to the negative terminal of the multimeter.Set the multimeter selector switch in low resistance value.Testing of a Diode using Analog Multimeter Step by Step Instructions: The method of testing a diode with an analog meter is quite straightforward. Just two tests are needed with the multimeter to ensure that the diode works satisfactorily. The basic diode test is very simple to perform.
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