How To Measure Voltmeter Reading. At the heart of most analog meters is a galvanometer an instrument that measures current flow using the movement or deflection of a needle. Plug the black probe jack into the COM outlet on your multimeter.

Otherwise damage to the meter will occur. Select the DC volts position on your multimeter or the 12V setting if you have a dedicated car battery test range. Thatll cause hundreds of amps to try to flow through those skinny multimeter leads and will blow up the meter or at least pop the fuse in an instant.
When we take a voltage reading the voltmeter is placed across the portion of the circuit that is to be measured.
Like other measure readings you must first put the black probe in the COM socket. To measure current optimize the range for the best reading possible. Insert the probes into the correct connections - in many meters there are a number of different connections for the probes. In this module we will teach you how to use a multimeter to measure capacitance.

