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<blockquote data-quote="Jay Barracato" data-source="post: 26888" data-attributes="member: 24">Re: Ebtech HumXNext time I go in you can be sure I will meter, for my information. Most of my SOS shows I typically just use the circuit tester that shows the branches of the circuit are intact. I am still not sure what having that information will do because in the two shows there I have basically checked everything a meter could tell me. I am not sure what the difference between knowing there is a potential on the ground and knowing how much it is.&nbsp;It appears that at least part of the noise is RF interference, and the meter isn&#039;t going to do much there either. &nbsp;The use of some simple best practices including the use of quad cables and a couple of ground lifts on cables and DI&#039;s for all practical purposes eliminated the problem, without having to use the HumX or lifting the safety ground in anyway.&nbsp;As for the popping, I am not sure if it was bad design but I had a low cost analog meter (sears special) that frequently would pop the breaker on ground to hot, so frequently that I would leave that test for last. That meter is long retired, but that possibility has always been in the back of my head.&nbsp;I am back there in June, I will bring back meter readings and see what we can interpret from them then.</blockquote>

[QUOTE="Jay Barracato, post: 26888, member: 24"] Re: Ebtech HumX Next time I go in you can be sure I will meter, for my information. Most of my SOS shows I typically just use the circuit tester that shows the branches of the circuit are intact. I am still not sure what having that information will do because in the two shows there I have basically checked everything a meter could tell me. I am not sure what the difference between knowing there is a potential on the ground and knowing how much it is. It appears that at least part of the noise is RF interference, and the meter isn't going to do much there either. The use of some simple best practices including the use of quad cables and a couple of ground lifts on cables and DI's for all practical purposes eliminated the problem, without having to use the HumX or lifting the safety ground in anyway. As for the popping, I am not sure if it was bad design but I had a low cost analog meter (sears special) that frequently would pop the breaker on ground to hot, so frequently that I would leave that test for last. That meter is long retired, but that possibility has always been in the back of my head. I am back there in June, I will bring back meter readings and see what we can interpret from them then. [/QUOTE]

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