Precautions for Voltage Measurements
• Plug the black test lead into the COM jack.
• Plug the red test lead into the V/A jack.
• Set the function/range switch to either
o DC volts in the upper left, or
o AC volts in the upper right.
• If you do not know the approximate voltage about to be measured, use the largest voltage range available.
• Connect the free ends of the red and black test leads ACROSS the device to the measured. Voltage is always measured with the meter in PARALLEL with the device.
• If the LCD displays either "1." or "-1." with all other digits blank, the voltage is beyond the selected range. Use the switch to select a larger range.
• Once you know the approximate voltage across the device, then use the switch to select the lowest voltage range that will still accomodate the voltage across the device. For example: