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Multimeters & Digital Measuring Devices


How To Use Your Multimeter To Measure Current, Resistance And Voltage

Posted by Brad on December 14 2016, 11:04am

Multimeters are battery operated and they have the ability to test several different electronic components which makes them the most essential tools for the one who wants to test and repair the electronic circuits Following are the ways to use a digital multimeter:  

How To Use Your Multimeter To Measure Current, Resistance And Voltage

How To Measure Resistance

  • First of all connect the multimeter to the circuit and then put the black probe into the shared terminal. Then you need to insert the red probe into the specific terminal marked for measuring ohms, volts and testing diodes.
  • Now you should twist the selector knob to fix the multimeter in order to measure resistance.
  • After that you need to turn off power to the circuit and remove the resistor you want to measure. You ought to ensure that the resistor is not in the circuit in order to get an accurate reading.
  • At the end you should touch the probe’s tips to every side of the resistor and then read the display in order to note the units.

How To Measure Voltage

  • Firstly connect the multimeter to a circuit and then insert the black probe in the common terminal, also insert the red probe in the terminal that is marked for measuring ohms and volts.
  • Now you should set the multimeter for the voltage you want to measure. It’s not mandatory to select the voltage unless or until your multimeter contains an auto range function.
  • You can measure the AC voltage by putting the probes across the component.
  • You need to observe polarity when measuring the DC voltage. Insert the red probe on the positive side and the black probe on the negative side of the component.
  • Read the display carefully in order to note the units.
  • You can also use the option of touch hold feature to keep the reading on the display even after you remove the probes.

How To Measure Current

  • First you have to either choose the terminal marked for measuring 300 (mA) or the terminal marked for measuring 10 amps. If you are uncertain of the current then start from the 10 amp terminal until you're confident that the current is less than 300 (mA)
  • Now you should set the multimeter in order to measure current and then should turn off power to the circuit.
  • Next you have to break the circuit and in order to measure current, you ought to place the multimeter in series with the circuit. You have another option of inserting the probes on any particular side of the break observing polarity.
  • After that turn the power on and the current will tend to run through the circuit. Up the red probe through the multimeter and then out the black probe into the circuit.
  • At the end you can read the display to measure amps or milliamps by using the touch hold feature.

How To Measure Continuity

  • Firstly you have to insert the black probe into the shared terminal and then the red probe into the specific terminal used to measure volts and ohms.
  • Now you should fix the multimeter to a similar setting that you use to test diodes.
  • Last but not the least you need to turn off the power of the circuit and insert the leads on any side of the circuit you want to test.
How To Use Your Multimeter To Measure Current, Resistance And Voltage

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