using a multimeter to test serial connection

If you need to measure any other points, then load the points with the power source. Therefore, this means the two tests investigate should be linked in parallel with the energy resource.

Then the multimeter should be connected in a parallel way with a circuit in wait for the measurement of the voltage.So, for example, calculate 12 volts on the 20-volt range will provide additional decimal places than on the 200 volt series. Select the Ac volt range for necessary accuracy.

The meter should set in the manual setting. But when you measure the ac voltage, then auto mode should be changed in custom mode. An important point should be kept in mind that most of the multimeter usually in automatic mode.Sometimes it could be characterized as Greek symbol Ω (omega). Then insert the red color positive lead probe into the opening that marked as V sign.Insert the black color probe lead into the COM opening on the multimeter.Then turn on the multimeter and set the energy at highest rang set it to dial at the correct position.Different voltages are also an essential factor behind it. Sometimes unwanted accidents will occur due to circuit breakers. The first step is to switch off all the circuits and plug points.It should do it for avoiding massive accident and injuries. This test is essential before the primary process. If the whole things will be right, the reading value should be 0.5 ohms or less than that. After that, you will connect the ports with a device and tap the tips of the leads. It can be verified by setting the multimeter into its resistance mode.

The crucial thing is to examine the state of the lead. If all things are fine enough then you can carry on otherwise, you should change the multimeter. Check that there is any kind of crack, burned part, internally disconnected or loosens part on it. Check that is it damp or any type of damage on it. If it is also useful in condition, then you can start your job. If it is ok, then check its leads properly. Before starting your measuring procedure, you should check all the necessary parts that are used for voltage measurement.

Using a multimeter to test serial connection