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<p>The invention of the <a href="https://www.holdpeak.com/multimeter" rel="noopener noreferrer" target="_blank"><strong>digital multimeter</strong></a> makes it much easier to learn to use the multimeter. The old analog multimeter is more difficult to master because when using an meter set to the wrong range or by touching the negative test probe to the positive voltage source, the movement of the meter is easily damaged. A second of loss of attention can disrupt 1 m of movement. This danger is eliminated by a manual<strong> digital multimeter.</strong> You still have to select the function and range with the first digital multimeter, but the risk of damage is minimal if you choose the wrong range. The automatic ranging multimeter is easier to use because you only need to select the required features. Select the automatic ranging function on the meter. Meters (such as Velleman DVM68) allow you to select the metering range manually or use the meter as an automatic ranging table. You can select manual or automatic ranging by pressing the ranging mode button on the meter. The range mode of the "Auto range" or value range you select is displayed on the LCD. Use the function switch to select the voltage to be measured--AC or DC. Depending on your meter, the "function switch" can be a rotary switch or a button. The function you select will be displayed on the LCD of the meter. Touch the red (+)and the black (-) Test the probe to the terminal to measure the voltage. When AC voltage reading is adopted, it is not important to test the polarity of the lead because the polarity reverses 60 times per second. The polarity does matter when you measure the DC voltage, but if you reverse the test probe, it does not cause damage. If you want to reverse the test probe, a "negative" symbol will appear (-) , Displayed on the LCD indicates the opposite polarity of the test probe. When the test probe uses the correct polarity or polarity to the contrary, the reading itself will be correct. Use the function switch to select the current to be measured--AC or DC. Series the meter between the voltage source and one side of the circuit to be tested. Read the current flowing in the circuit on the instrument LCD. If the "negative" symbol appears before the numerical reading, this means that the connection polarity with the meter is reversed. Set the function switch to an ohm function. Remove all power supplies for the device to be tested. Touch one probe of the meter to each connection of the device being tested. Read the resistor in Ohm on the LCD of the meter.</p>
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