1 Answer
To check DC voltage with a multimeter, follow these steps:
1. Set the Multimeter to DC Voltage Mode:
- Turn the dial of your multimeter to the DC voltage setting, often marked with a V and a straight line (sometimes with a dashed line below it). This is usually indicated by a "V—" symbol, where the dash represents direct current (DC).
2. Plug in the Multimeter Leads:
- Insert the black probe into the COM (common) terminal (usually the negative terminal).
- Insert the red probe into the VΩmA terminal (usually the positive terminal).
3. Connect the Probes to the Circuit:
- Black probe (negative) goes to the ground or negative side of the circuit (often marked with a minus sign, -).
- Red probe (positive) goes to the positive side of the circuit (marked with a plus sign, +).
4. Read the Voltage:
- Look at the multimeter display. It will show the voltage reading. The multimeter will display a positive number if you're measuring in the correct polarity, or a negative value if the probes are reversed.
5. Check the Range (If Needed):
- If your multimeter doesn’t automatically adjust the range, you may need to manually adjust the dial to a suitable range. For example, if you’re measuring a small voltage, set the range to something like 20V, 200V, or whatever fits your expected measurement.
6. Turn Off the Multimeter After Use:
- After you're done, turn off the multimeter to save the battery.
Tip: If you're unsure about the voltage range, it's safer to start with the highest setting and then move to a lower range if needed.
1. Set the Multimeter to DC Voltage Mode:
- Turn the dial of your multimeter to the DC voltage setting, often marked with a V and a straight line (sometimes with a dashed line below it). This is usually indicated by a "V—" symbol, where the dash represents direct current (DC).2. Plug in the Multimeter Leads:
- Insert the black probe into the COM (common) terminal (usually the negative terminal).- Insert the red probe into the VΩmA terminal (usually the positive terminal).
3. Connect the Probes to the Circuit:
- Black probe (negative) goes to the ground or negative side of the circuit (often marked with a minus sign, -).- Red probe (positive) goes to the positive side of the circuit (marked with a plus sign, +).
4. Read the Voltage:
- Look at the multimeter display. It will show the voltage reading. The multimeter will display a positive number if you're measuring in the correct polarity, or a negative value if the probes are reversed.5. Check the Range (If Needed):
- If your multimeter doesn’t automatically adjust the range, you may need to manually adjust the dial to a suitable range. For example, if you’re measuring a small voltage, set the range to something like 20V, 200V, or whatever fits your expected measurement.6. Turn Off the Multimeter After Use:
- After you're done, turn off the multimeter to save the battery.Tip: If you're unsure about the voltage range, it's safer to start with the highest setting and then move to a lower range if needed.