A digital multimeter is a versatile tool that integrates three testing devices - a voltmeter, ammeter, and ohmmeter - into one easy-to-use handheld unit. Here is a easy and easy guide on how to use each of the testing functions contained in a multimeter.
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Voltage, which is essentially the electrical possible of a device, is measured with a voltmeter.To use the voltmeter function to portion Dc volts, turn the function switch to "V=" setting. Associate the black and red leads to the multimeter. The red lead you will Associate to the red input concluding which is labeled "VΩ." The black lead you need to Associate to the concluding that is labeled "Com," which stands for "common terminal."
Once the leads are connected, you are ready to portion the voltage of a circuit. Attach the red lead to the concluding with the higher potential; attach the black lead to the concluding with the lower potential.
Measure Amps with the Ammeter
Amps are the amount of electrical current that flows in an galvanic circuit.
For measuring amps with the ammeter function, you will need to Associate the leads differently than you did with the voltmeter. The first step is to set the function switch to the "A=" point on the dial. Next, Associate the red lead to the concluding that says "300mA," and Associate the black lead to the concluding labeled "Com."
When you have attached the leads as described, you can now Associate the meter in series to the expedient you wish to measure. Just open up the circuit and insert the meter in the middle of the open points and you can portion the amps. You will see the results as milliamps, as you are using the 300mA terminal.
Measure Ohms with the Ohmmeter
Ohms are the units of determination that indicate how much electrical resistance is in a circuit.
To portion ohms, you will use the ohmmeter function of your digital multimeter. The first thing you must do is to disconnect the power and wiring from the circuit you wish to measure. When all is disconnected, rotate the function switch to "Ω." Attach the red lead to the "VΩ" terminal. Attach the black lead to the "Com" terminal.
Your display should have a readout of "Ol," which indicates there is an overload. Finally, all you need to do now is Associate the leads to the circuit you wish to portion to get a readout of the ohms.
In a nutshell, we have just seen how to use the voltmeter, ammeter, and ohmmeter functions of a digital multimeter. By having three significant electrical determination functions neatly contained in one hand-held tool, you don't need to carry nearby three detach devices in your tool bag. Be sure to turn off your expedient when you are done to conserve your battery for the next time you need to use it.
How to measure Volts, Amps and Ohms With a Digital Multimeter
