boylesg
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You could use a self-resetting PTC fuse, also called varistor or metal-oxide-varistor (MOV), see e.g. **broken link removed** ( <-- direct PDF download).
I've used such a MOV successfully in my DMM for many years: View attachment 77648
You can try out this.It needs resetting using a switch after every trip.
http://www.circuitstoday.com/simple-elecronic-fuse
Every time I stuff up with the DMM I have to change the fuse......pain in the arse.
So I don't have to open open it up to change the fuse.
...
Every time I stuff up with the DMM I have to change the fuse......pain in the arse.
If you burn your multimeter fuse so frequently you are probably doing something wrong so you should reconsider your methods or be more careful while using it.
Well I aint gonna learn anything new if I don't try. If I blow the fuse 100 times then I blow the fuse 100 times! Sooner or later I will develop more appropriate habits for the DMM.Maybe is better for you to stay at analog needle
We didnt ask you, that DMM is not defective ?
Maybe you have some short circuit inside, cased by maybe battery leaking or something else.
I don't think so. It works just fine on current as long as I remember to always switch the dial and + probe back to the high range before testing a new input.
It is a simple matter of having developed bad habits I suppose after using the vastly more forgiving AMM for years.
There is possibility to put this suggested circuit into fuse body, except taster which will be outside. All parts should be SMD.
Its possible, but I think its better to change bad habits when using fine instruments.
Taster? SMD?
S1 is taster. Just one hole drilled on multimeter plastic case.
Thyristor, transistor exist in SOT23 SMD case.
Resistor in SMD lets say 0805.
I hope that you didnt mean really to put 2n3055 transistor for this.
Dont let that this resseting fuse be bigger then multimeter. Yes you can also use TO92.
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