A multimeter is one device that you should have if you like to work with electrical systems. It can be useful in more ways than one, which makes it a great investment. While it can be beneficial, however, this will only be the case if you know how to use a multimeter properly, which will allow you to make the most out of its functions.
In a nutshell, a multimeter is simply a device that will provide you with several measurements of electricity. It is a multi-functional tool as it can provide you with more than just measurements. To be specific, it will be useful for the measurement of voltage, current, and resistance. Clueless on how to use this equipment? Keep on reading and learn from the insights that we will be sharing.
How to Use a Multimeter in Measuring Voltage
Voltage refers to how hard electricity will be pushed in a circuit. The harder the push of the electricity is, the higher will be the voltage. Voltage is indicated in “V” and measured as volts. Here is how you can use your multimeter for the measurement of voltage:
- Start with connecting the multimeter to the circuit. Insert the black probe into the COM port, which is the common terminal, and the red probe in the VΩmA port, which is specifically the port for the measurement of voltage and ohms. Before doing this, make sure as well to turn off the power to the wire or circuitry.
- Determine whether you are measuring AC or DC voltage. Turn on the dial on the voltage that you intend to measure.
- If you are measuring AC voltage, you can now place it in the component without the need to pay attention to polarity. On the other hand, if you are measuring DC, be sure to observe polarity.
- Power the equipment and read the display that you can find in the multimeter.
How to Use a Multimeter in Measuring Current
Current, on the other hand, refers to the amount of electricity that flows in a circuit. If there is high electricity flowing, the current should also be high. To measure current with a multimeter, here are the things you have to do:
- To start with, turn off the supply of electricity from the circuitry where the measurements where will be made. Multimeters have two sockets with different milliamperes. Choose which one is suitable.
- Select the setting from the multimeter that is meant to measure current. Follow this up by breaking the circuit. While placing the probes in the breaks, be sure to pay attention to polarity. Connect the red probe on the positive break and the black probe on the negative break.
- Turn on the power supply. This will let electricity pass through the circuitry, making it possible for the multimeter to make the appropriate measurement.
- Read the display to know the current in the circuitry. In the case of some models, there is a feature wherein you can touch the Hold button for the readings to stay on the screen.
How to Use a Multimeter in Measuring Resistance
Expressed as ohms, resistance refers the obstruction that the electricity experiences as it flows through a current. If there is a higher resistance, this means that electricity is finding it more difficult to enter the current. Here is how to can use the multimeter in the measurement of resistance:
- Connect the appropriate circuit in the multimeter. Attach the black probe to the common terminal. On the other hand, attach the red probe to the terminal for the measurement of voltage and resistance.
- Turn the selector knob to choose the specific setting for the measurement of resistance. In some models, this may be represented by the Greek symbol of omega, which means ohms.
- Turn off the supply of power.
- Place the probes on the circuits that you will measure. Make sure to remove the resistor from the circuit board prior to measurement. Otherwise, there is a high likelihood that the result will be inaccurate.
- Read the measurement on the display.
To make the most out of this multi-functional device, it is important that you learn how to use a multimeter. It does not take an expert to figure this out. Nonetheless, it is important that you follow the right steps to be safe, and more importantly, to be sure of ending up with accurate measurements. Finally, if you don’t have a multimeter, read our reviews to pick the best one.