How To Use Your Multimeter For Electrical Testing And Troubleshooting

When the probes part the screen should read 1 or ol also known as open circuit.

How to use your multimeter for electrical testing and troubleshooting. Whenever something in your circuit isn t working the multimeter will help you troubleshooting. Bring out your multimeter and adjust it to the lowest setting. It combines three essential features. Start by setting the multimeter to the ohms scale usually represented by the greek letter ω omega. Find the two connections where wires connect to your part.

This is usually 200 ohm. To bring the meter to zero you have to touch both the leads together. The multimeter screen should read 0 00 also known as short circuit inexpensive meters may read close to this from resistance of their leads. Remove the atx connector from it. Even if you don t have an electrical schematic of the circuit board which would identify components and give you the voltage and resistor values that should be present many circuit boards have test points that are clearly labeled.

You simply dial the proper function and scale touch the two test leads to the wiring or device in question and check the meter reading. To test the circuit make sure your power is turned off. Test your multimeter is working by pressing the probes together. A voltmeter ohmeter and ammeter and in some cases continuity. A multimeter is a measurement tool absolutely necessary in electronics.

A multimeter is a black box of electronic circuitry that allows you to troubleshoot just about any type of electrical wiring or device. How do you use a multimeter. Use a multimeter on these test points to see if the voltage measured matches the labeled test point voltage. Using your multimeter you can determine if a bulb has blown or a fuse is bad or ensure that any other number of components has good electrical connectivity. Once you do that test it with the chassis to ensure that it is still zero.