Multimeter vs Voltmeter: What is the Difference

Multimeters can measure voltage, current, resistance, and other parameters. Voltmeters specialize in voltage measurements only but provide greater accuracy. Choose multimeters for versatility or voltmeters when precision voltage readings are critical. 

For those working with electrical systems, frequently there is a need to measure elements such as current, voltage, and resistance. Two prevalent instruments used for handling such requirements are the multimeter and the voltmeter. Within this guide, we aim to contrast these two analytical appliances and bring to light their key variances to facilitate selecting the most appropriate for your intended applications.

What is a Multimeter?

A multimeter is a tool capable of measuring voltage, current, and resistance in electrical circuits. It contains several functions and measurement ranges to accommodate different signals. Multimeters have two probes that connect to the circuit or component being tested. The display shows the measurement reading. Voltmeter vs multimeter comparisons often highlight the multimeter’s versatility.

One major advantage of multimeters and panel meters is being able to switch between measurement modes as needed. For example, you can check voltage across a resistor then switch to current mode to measure the flow. Multimeters also include continuity and diode modes to test connections and components. Models vary in accuracy, resolution, and ruggedness. How to use a commercial electric multimeter depends on the specific model and measurement needed.

What is a Voltmeter?

A voltmeter is designed specifically to measure voltage. The probes connect across a component or circuit nodes where the voltage drop needs to be determined. The display indicates the reading, usually with high accuracy and resolution. Voltmeters are optimized to measure a wide range of AC and DC voltages precisely. How to check voltage with a voltmeter involves selecting the appropriate range and connecting the probes correctly.

Unlike multimeters, voltmeters have only a single purpose – voltage measurement. They cannot measure current, resistance, continuity, etc. The benefit of specialization is achieving superior accuracy and resolution on voltage compared to an equivalent multimeter. However, a separate instrument would be needed for other measurements.

Choosing Between the Two | Multimeter or Voltmeter

Multimeters offer flexibility and convenience for general troubleshooting and testing of electrical circuits. Their versatility allows taking different measurements without needing multiple tools. Voltmeters would be better for voltage-critical applications where accuracy is paramount. Their specialized design provides precision unachievable by standard multimeters. The voltmeter vs multimeter decision depends on your specific needs.

For most home electronics work, a digital multimeter provides sufficient functionality at a reasonable price. Professional technicians may utilize high-end multimeters and voltmeters as needed for specific scenarios. Consider your own needs and budget when deciding which type of electrical measurement tool is most appropriate. Voltmeter vs multimeter considerations should include the range of measurements you’ll need to take.

Conclusion

Multimeters and voltmeters both play important roles in electrical measurement. Multimeters act as “jack of all trades” devices suitable for general circuit testing. Voltmeters focus exclusively on voltage measurements with superior accuracy. Select the option offering capabilities aligned with your intended applications. For broader use with flexibility, multimeters are preferable. But voltmeters excel when high-precision voltage readings are critical. Visit TOSUNLux website for recommended models to fit your budget and needs. 

Frequently Asked Questions – FAQs

How to convert multimeter to voltmeter?

To convert a multimeter into a voltmeter, select the voltage measurement option. Typically this involves turning a dial and verifying the displayed probes are for voltage. Readings will then indicate voltage potential instead of other electrical values.

Can you use a multimeter instead of a voltage tester?

Yes, in many cases a multimeter can substitute for a voltage tester. Most multimeters have a voltage measurement setting just like a dedicated voltage tester. The main advantage of a multimeter is its additional functionalities for measuring resistance, current and more. Safety is still required when performing voltage readings. Understanding voltmeter vs multimeter functions is important for this substitution.