Using the UNI-T UT61E to measure 20 Amperes

After looking at the KASUNTEST KT6000 with it's 20A rated current measurement feature, I decided to once again modify my UT61E to make this same measurement.

[MarcoFranceschini]

Great new one, shunt resistor Joe...for the UNI-T UT61E.

[SBHSGA]

Maybe you could start selling a kit for the UT61E? Call it the JS upgrade package? Just kidding - great video - and that 61 is becoming quite the device! BTW - I get my Brymen 869S in the mail today. TME in Poland is a great outfit.

[BrassLock]

Thanks for uploading this test Joe. I wonder if a scaled-down mini Peltier style of thermoelectric cooler would allow handheld devices to handle more than 20 amps, or for longer than is currently recommended.

[mdzacharias]

I just had a funny thought (to me anyway...) How about a magnesium shunt? :-)

[glenslick]

So the watt density figures in watts / mm^2, or watts / inch^2, is that based on the surface area of the current shunt (Pi * diameter * length)? This is the first place that I have seen watt density units being used and was unsure exactly what they meant at first.

[hdmalpas]

Have a look into the ET201 it is supposed to be 20A, it is not just a DMM but also an oscilloscope?

[otnica]

A couple of ventilation holes on the case will help keeping the temp under control.

[felixcat]

Very nice tutorial. How can i measure the resistance and amperage of a component, like a light bulb while it is loaded using 2 multimeters? The one measuring resistance could get damaged.

[zxztv]

Did your new shunt return back to exactly the value you set it?.
I was just wondering if a once heated shunt is altered slightly.
Like the adaptive backlight, thats what all meters should have :-)

[tanishqbhaiji]

dumb idea: why not temperature compensate a fuse and use it as a shunt to reduce the burden voltage

[JackZimmermann]

Could you lower the burden voltage on the multimeter just by choosing the right fuse? I remember from one of your earlier videos where you showed how much drop there was on the fuse.

[AlexandreJasmin]

What about the low-z voltage range on some meters? How much power will it dissipate at high voltage?

[newsogn]

what software is that I can't tell?

[klystron]

Certainly believe in getting your money's worth out of your meters. How about external shunts? I use one of 30A, like your video's.

[caiocaio]

joe, I heard you talking about Dave's meter, is he working on a new one?

[sepertude]

Get DT4282 and make detail review, nobody did it yet. Or some used Gossen from ebay.de