EEVblog #75 - Digital Multimeter Buying Guide for Beginners

EEVblog · 1.2M views · 2010 · 51:58

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Electronics & circuit designEmbedded systems & DIY electronicstutorial

Why Electrical Engineering Stack Exchange recommends it

Electronics Stack Exchange users link it when advising newcomers to buy a better multimeter than a cheap supermarket one, and when discussing multimeter features like fast continuity testing.

Recommended by 2 people across 2 different months, 2013 to 2016.

What it is

A 52-minute EEVblog episode in which Dave Jones gives a feature-by-feature guide to choosing a general-purpose digital multimeter as a beginner. He covers what to look for in a meter, from basic specs to safety considerations, in his usual rambling style.

What people said

Recommends LorenzoDonati4Ukraine-OnStrike · 2015-07 · Electrical Engineering Stack Exchange · on “Building AND/OR/NOT gates from NAND”

@Sklivvz Just an aside. I just looked at your site and the photos on them. On one of them there is a glimpse of the multimeter you are using. It seems one of those supermarket crappy 1MOhm input impedance DMM (I've got one of those and I use it only for very basic stuff, since it is so small). An advice for an EE newbie: if that is the only DMM you have, do yourself a favor and get a better one. You won't regret it when you'll begin troubleshooting a complex system or if you ever need to do measurement on something more high voltage. Relevant EEVBlog video [this video] .

Recommends Richard Crowley · 2016-06 · Electrical Engineering Stack Exchange · on “Measuring 0-250V and 10A (AC) with arduino”

By using that cheap SCR "chopper" you have created a measurement problem for yourself. Since you have a non-sinusoidal waveform, you need a "true RMS" measurement scheme for BOTH voltage and current. You can certainly find RMS conversion chips that will allow you to construct a circuit that accurately reports equivalent RMS voltage and current. But that is not a trivial thing you can throw together with an Arduino. The measurement of your "dirty" power has now become the primary project vs. a simple measurement task. It seems unlikely that you can find any of those inexpensive digital voltage/current meters on Ebay that will read true RMS. Even if you could find one that is powered separatel

Cites zzz · 2013-01 · Electrical Engineering Stack Exchange · on “What is the practical benefit from very sharp probe tip and fast continuity test of DMM?”

What is the practical benefit from very sharp probe tip and fast continuity test of multimeter? I was searching for a while with google and in ee.se but results contain mainly a dmm seling ads with featuring sharp tip probes or similar. Maybe can't find correct search keywords, but can't find this question answered here too. In EEVblog, Dave Jones mention quite few times importance of fast continuity test, but only once give the example [this video] with faster and more convenient way to test multiple pins on a IC. Fair and square, but only applying in electronics. That disperse the fog a little but I remember a friend of my father talking something similar and I am quite sure he was in electrici