Digital Multimeters

A digital multimeter (DMM) is a measuring instrument that quantifies electrical parameters such as voltage, current, and resistance. Unlike its analogue counterpart, which relies on mechanical movements and scale readings, a digital multimeter employs advanced semiconductor technology to provide precise numerical measurements displayed on a digital screen. This modern marvel offers unparalleled accuracy, reliability, and user-friendly operation, making it a staple in professional and amateur electrical work.

How to Use a Digital Multimeter

Typically, a DMM features a large LCD screen where measurements are displayed prominently for easy reading. Surrounding the display are various buttons for selecting measurement functions such as voltage, current, resistance, and continuity. Additionally, there are input jacks where the test leads – the probes attached to the multimeter – are inserted to make contact with the circuit under scrutiny.

How to Check Continuity With a Digital Multimeter

To perform continuity testing, start by setting the multimeter to the continuity or diode testing mode, usually denoted by a symbol resembling sound waves or a diode. Next, ensure the circuit is de-energised and disconnected from any power source to prevent accidents. Then, with the test leads connected to the appropriate jacks, touch the probes to the two points you wish to test for continuity. If there is a continuous path between the points, the multimeter emits an audible beep or displays a low resistance value, indicating electrical continuity.

How to Check Voltage With a Digital Multimeter

Selecting the appropriate voltage range on the multimeter is crucial to avoid damage or inaccurate readings. Once the range is set, connect the test leads to the corresponding jacks – the red lead to the positive terminal and the black lead to the negative terminal. When powering the circuit, carefully touch the probes to the desired voltage measurement points. The multimeter then displays the voltage reading on its screen, allowing you to assess the electrical potential precisely.

While continuity testing and voltage measurement are among the primary functions of a digital multimeter, its capabilities extend far beyond these fundamental tasks. With the right knowledge and expertise, this versatile instrument can be used for a myriad of advanced applications, including measuring capacitance, frequency, temperature and even testing transistors and integrated circuits. 

Industry Superstore Digital Multimeters

 

Industry Superstore has been selling digital multimeters for several years. Industry superstore provides these devices for various industries. Don't hesitate to contact us with any questions about our digital multimeters or other products.

 

Other Products

 

Industry Superstore customers can rely on us for high-quality products. Digital Multimeters are only a handful of the products we provide customers across the United Kingdom. We are also a significant supplier of Voltage Testers.