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How to reduce static in a CPU based ite

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balagary

Electrical
Feb 9, 2007
11
US
We are using a 89c52 cpu in a machine and we are having horrible static issues. When the user touches the machine and discharges static to it it resets the machine. We have tried a lot of grounding throughout the machine and still no luck . It only seems to happen when the humidity drops low ( less then 30 percent or so )and the problem ' fixes ' itself when it gets more humid and less static in the air. Any help would be aprrecaited . Is there anything that can be done now ,after the intitial enginerring has been done , to modify this board to help out ?
 
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Can an anti-static treatment be applied to the floor around the machine?
 
Yes , We have had luck with spraying "Static Guard" in an 3 foot by 3 foot area in front of the machine but most of the people who buy these machines from us are annoyed at this fix , they want something more permenent that doesnt require any interaction on thier part.
 
Static Guard wears off... you need to fix the electronics, not the surroundings.


Dan - Owner
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I agree - I have ordered some of the things from this forum from Digikey and I hope to begin more testing next week.
 
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