Checking the ground using a multimeter is an essential skill for electricians and homeowners alike. A multimeter measures electrical properties such as voltage, current, and resistance. When checking the ground, you are measuring the electrical connection between a circuit and the earth. This connection is important for safety, as it provides a path for excess electricity to flow away from the circuit and into the ground.
There are two main ways to check the ground with a multimeter. The first method is to use the continuity setting. To do this, connect one lead of the multimeter to the ground terminal of the circuit and the other lead to a known good ground, such as a metal water pipe. If the multimeter beeps, then the circuit is properly grounded.