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[MohitJindal]

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Hi; I have a UNI-T 830D multimeter. I connected it to a DC Servo motor circuit board. I checked the voltage; its perfect. But when I checked the current it burned my whole board . No fire,no smell of burning but a brown color on the pins of a chip and the board is not working anymore. One thing I noticed;when I checked the current the values are fluctuating. How I can check actual correct current ? Is buying only Ammeter a good option ? . Fluke multimeter are best ?

[SunLikeStar]

I hope you know that current is measured in seriese and not parallel. I'm sure you know this already, just putting it down on the board.

[srivatsa]

Adding to that.. Current mode = least resistance. there are good chance of shorting. Did you by pass any component?

[MohitJindal]

I know current is measured in series but how i make that series ? Also i didn't bypass any component.
On another day i checked current of a battery it burns my fingure.

[srivatsa]

You can't make the series unless you Break the circuit between.

On another day i checked current of a battery it burns my fingure.

current of a battery? i hope you know it doesn't mean anything unless something draws the current from it.. to measure current, the ammeter ( in your case, multimeter in current measuring mode) offers negligible resistance to the circuit. so its as good as short circuit. during which large current flows and the carrier heats up.

[MohitJindal]

Yes i attached the 2 wires coming out from battery to 2 wires of multimeter.
Main point is how i check current. Circuit board is running dc motor. I think desolder red motor wire and attach multimeter to it. Is that series ?

[SunLikeStar]

You are doing it all wrong. Request you to read some basics about current, voltage and multimeters.