Simple Instructions on How to Use a Digital Multimeter

By Colin Rowe
Digital multimeters are more accurate than analog ones.

Multimeters are used in all areas of electronics to determine the voltage, amperage or resistance in an electrical circuit. They are available in two varieties, analog and digital. Analog versions are cheaper to buy and are fine for establishing a current, but if you need a level of accuracy, a digital version is much more suitable. They are very simple to use and can come in handy in many situations in amateur electronics.

Auto Range Multimeter

Insert batteries into the multimeter. The number and type of batteries required will vary from model to model.

Connect the wires to the multimeter. One will go into the COM, or Common, connection. The other will go into either the VΩmA or the 10A plug. The VΩmA socket is more commonly used, as the other is for high amp circuits.

Select what reading you want to take. Auto range multimeters have fewer options and are usually limited to V (volts), Ω (resistance) and A (amps).

Connect the wires from the multimeter across the electrical circuit to take a reading.

Switched Range Multimeter

Insert batteries into the multimeter. The number and type of batteries required will vary from model to model.

Connect the wires to the multimeter. One will go into the COM, or Common, connection. The other will go into either the VΩmA or the 10A plug. The VΩmA socket is more commonly used as the other is for high amperage circuits.

Select what reading you want to take. Switched range multimeters have the standard V, A and Ω options, but they can also be set to a range depending on the how high the readings will be. This gives you a much more accurate reading.

Connect the wires from the multimeter across the electrical circuit to take a reading.

Warning

Be careful, as you are dealing with live electrical circuits.

About the Author

Colin Rowe started writing professionally in 2009. He has written for the print publication "Hounslow Chronicle" and for websites such as News Associates, Global Newswire, FiX e-zine and NRI Digital. He holds a postgraduate degree in journalism and a Bachelor of Arts in media arts and management studies from St. Mary's University in London.