Digital Multimeters To Check Continuity In Electrical Appliances

Digital multimeters are nowadays used in all industrial sectors for their versatility and capability to deliver accurate results

. Though they were earlier used only by trained electricians and engineers, today with the advent of the digital version they can be used by just anyone for gauging current, resistance, and voltage.

They are nowadays used to check current continuity at home and at office. You can also use digital multimeters to test the continuity in two ends of a simple electrical cord. All you have to do is first check the resistance, or 'continuity' test function of your system. And one word of caution is to always disconnect the appliance from power source to avoid any accidents related to electrical shocks. If the meter does not indicate continuity, then there is a break in the circuit, and the cord is probably cut.

Similarly, you can also test a switch using digital multimeters. All you have to do is place a test probe on each side (pole) of the switch and then as you move the switch from the off to on position, the multimeter reading should change from zero to infinity. If not, then the switch is not working properly.

You can also use digital multimeters to test a motor. For that you have to touch a test probe to each pole, if the reading indicates zero then the motor has continuity, current can pass through, and the motor windings are good. Apart from these, you can also use this equipment to measure alternating current (AC or household current) or direct current (DC or battery current) in a live circuit. They are far better than their analog versions just like the digital pressure gauge.

You can also check voltage in various appliances using digital multimeters with a little bit of practice. People use this multipurpose equipment the condition of DC batteries if they are weak or fully charged. They are as easy to use as infrared thermometer, which has brought a paradigm shift in gauging non contact temperatures.

by: Genelia Winslet

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