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What Is A DVM (Digital Volt Meter)?
A DVM (Digital Volt Meter) is an instrument that measures voltages, current and resistance.
The image below is a DVM.
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This webpage describes:
· What a DVM (Digital Volt Meter) is.
· What a DVM is used for.
· How to use a DVM. |
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Digital Volt Meter |
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Home > Small Business Advice > Digital Volt Meter |
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A DVM has:
· A display (shows the results of a measurement).
· A mode select switch – selects the unit of measurement, for instance DC volts, AC volts and resistance. · The image above has a rotary mode select switch.
· Test leads.
What Is A DVM Used For?
A DVM is used for measuring voltages, current and resistance.
An electrician may use a DVM to check whether a voltage is there or whether a fuse has blown.
A DVM is used to gather information on a problem (fault finding) – has the fuse blown? Is there power at the light switch? Is the switch working?
How To Use A DVM
To use a DVM:
· Select the correct mode – for instance DC Volts, AC Volts or resistance.
· Put the probes onto where you want to measure.
The image below shows a DVM being used to check a fuse.
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