Multimeters: Difference between revisions
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{{ToolInfoBox | {{ToolInfoBox | ||
|tool name=Multimeters | |tool name=Multimeters | ||
|image=Multimeter.jpg | |german=Multimeter|image=Multimeter.jpg | ||
|synonyms=multitesters;<br>DE: Vielfachmessgeräte | |synonyms=multitesters;<br>DE: Vielfachmessgeräte | ||
|type=measuring tool | |type=[[measuring]] tool | ||
|access= | |access=read this page | ||
|location= | |location=[[Location::Electronics Room|electronics room]] | ||
|material=circuits, [[Electronic Components|electronic components]] | |material=circuits, [[Electronic Components|electronic components]] | ||
|tutors=[[User:Pakue|Patrick]] | |tutors=[[Tutor::User:Pakue|Patrick]] | ||
}} | }} | ||
Multimeters are an essential tool for working with electronics. They are used – as the name suggests – to measure various values of a circuit like: | Multimeters are an essential tool for working with [[electronics]]. They are used – as the name suggests – to measure various values of a circuit like: | ||
* voltage – unit ''Volt'' (V) | * voltage – unit ''Volt'' (V) | ||
Latest revision as of 16:52, 29 May 2022
| ToolInfoBox Multimeters | |
|---|---|
| |
| Synonyms: | multitesters; DE: Vielfachmessgeräte |
| Type: | measuring tool |
| Material: | circuits, electronic components |
| Location: | electronics room |
| Access Requirements: | read this page |
| Tutors: | Patrick |
Multimeters are an essential tool for working with electronics. They are used – as the name suggests – to measure various values of a circuit like:
- voltage – unit Volt (V)
- current – unit Ampere (A)
- resistance – unit Ohm (Ω)
- frequency – unit Hertz (Hz)
- capacitance - unit Farad (F)
- diode test – voltage needed to overcome the PN-gap
It is important to be aware of how to measure a certain value properly without interfering or even damaging the multimeter or the circuit. All multimeters have different inputs for measuring current and voltage. The voltage input is protected with a high input impedance (> 1 MΩ). When measuring current, the leads act as a dead short so be very careful when using this mode and always plug the leads back into the voltage input so another person can't accidentally short a circuit when using the multimeter.
How to Measure
- think about what value you want to measure (voltage, current, resistance, …)
- check if the leads are connected to the right input (black to COM and red to relevant input)
- turn the dial to the correct mode
- select the right range (e.g. mV, V) - newer multimeters may have an autorange feature so they select the right range on their own as long as the correct input socket is used
- hold the leads to the two points you want to measure
- done!
