The absence of a proper electrical tool box and the associated tools at your home lays the foundation for a major mishap that could’ve been cured during the initial stages.

One of the common reasons for this laid back attitude is the absence of appropriate electrical safety tools. One of them is the digital multimeter. It is an electrical device that can almost diagnose any electrical problem provided that the correct logic and all the instructions are kept in mind.

The LCD display and the LED attachments make it easier to handle and use. Also the basic functioning of the device can easily be availed.

If one of your electric junction or socket starts behaving in an unexpected manner then a digital multimeter may save the day for you. It would provide you with the information about the state of the circuit(open, closed or shorted). That eases the pursuit of the solution for you.

Before buying an electrical multimeter make sure that it is a modern digital multimeter and not an analog one with the needle pointers. Also the impedance limit of the meter should be taken care of because low impedance or high resistance would cause a sudden upsurge in the current being drawn and can damage the circuitry of the apparatus. Hence, a multimeter with an at least 10 mega ohms impedance is generally preferred.

Once you’re ready to test an appliance/socket for its circuit’s operational state, just plug the leads to the wires with red being the positive terminal and black being the negative terminal. There are three modes in which you can test the component: ampere, voltage and resistance. In the amperage test, the LCD displays the reading of the current passing through the component(in A or mA ).

Similarly a voltage test can be done to know the the potential difference between the two terminals of the faulty electrical component.

Also an ohm test can be preformed as well. If the reading shows 0 ohm then it means that the circuit is short. If the reading is 1.000 or ‘OL’ then the circuit is open. If however the reading is more than the prescribed limit of the device(in ohms) then a short-circuit is again indicated.

Scott Rodgers is a writer with ample experience in electricians work all over the country. His exemplary guidance has created business opportunities for a lot many Tampa Electricians(Need one? click here!) and Northbrook Electricians(Need one? click here!).