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GreyAlex2017-01-28 16:28:22
Electronics
GreyAlex, 2017-01-28 16:28:22

Which budget segment multimeter to choose?

Hello!
I ordered a DT838 multimeter and on the day I received it, I burned it)
So that you understand how, and how much I am an oak, I measured the batteries for volts, which ones to throw out, which not, and then I thought if it was possible to measure their current (yes, yes, in physics I have 3, I'm not friends with her). The great network said that it is possible to measure it, only you need to feel it quickly and at the redistribution of 10A with the correct range, which I did.
After that, the multimeter changed all the values, the battery measurements were too high, the temperature went astray, etc., I came to the conclusion that the Khan's patient. There is no fuse in it.
Actually, the question is what can you buy cheap, with protection from an idiot (I understand that in fact you need to understand what to measure and how to measure and put in 220 is not worth it). The scope of my requirements is to measure the batteries for deadness, sometimes ring the chain for small crafts, small measurements. Not oversized. If it’s real, it’s not bad that you can measure the temperature, a thermocouple remains from the past, and the pyrometer sometimes lies.
Who will tell you which textbook to read in physics, I will also be glad to advice, the current is not tricky)
Thank you for your attention.

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5 answer(s)
1
15432, 2017-01-28
@15432

The multimeter could die only if you did not plug the red probe into a special 10A socket when measuring current.
In addition, measuring the current of batteries through a short circuit is not the best way to check for deadness. By this you will only find out the internal resistance, and even then it is very inaccurate.
Any multimeter will do for your purposes. Go to aliexpress and choose)

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Rou1997, 2017-01-28
@Rou1997

measure their current

Do not measure for current anymore, this is not necessary, when the charge controller in the battery in your laptop determines the charge, it does not measure for current, it would be absurd to measure for current under load, since it changes as the computer is loaded, and the short circuit current itself you know. :)
It is possible, only in voltage measurement mode.
What for?
There are not so many ways to disable the multimeter, I personally use the entire Internet at once as a textbook, and I’m not afraid to try “is it possible”, if something breaks then let him put up a monument, he died for a good cause, and if it is necessary that it does not break, it is enough just not to try.
Guaranteed protection against failure during a short circuit is quite complicated, so it will not be available in budget multimeters for sure.

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Viktor, 2017-01-29
@nehrung

idiot proof
If this criterion is more important for you than others, then I have already answered such a request - Which multimeter to buy with foolproofing?

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Ilya Vedenin, 2017-02-07
@ivedenin

Take appa 303 :-) knows everything.

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