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<blockquote data-quote="TJ Cornish" data-source="post: 27051" data-attributes="member: 162">Re: Ebtech HumX&nbsp;<a href="http://support.fluke.com/find-sales/Download/Asset/2793260_6116_ENG_A_W.PDF" target="_blank">http://support.fluke.com/find-sales/Download/Asset/2793260_6116_ENG_A_W.PDF</a>The Fluke 110 series meters (113, 115, 117, etc.) have a LowZ mode that&#039;s about 3K - plenty to trip a GFCI.&nbsp; Obviously not enough to trip a breaker.&nbsp; They also have normal volts mode with an impedance of 5M which would be fine for circuit testing.Hopefully the situations that Jay has encountered where breakers were tripped were GFCI breakers - If he really was tripping a regular breaker with a meter something is radically wrong.Jay - I understand your concerns about being easy to work with in the eyes of the venue, but I&#039;ve never been at a gig that was imporant enough to risk blowing up large chunks of my PA by not testing.&nbsp; Even if the gig were that important, it still wouldn&#039;t be worthwhile, because blown gear does not a successful gig make.You test so that you have confidence the power is good.&nbsp; If it isn&#039;t, then you either find different power or you don&#039;t do the gig.</blockquote>

[QUOTE="TJ Cornish, post: 27051, member: 162"] Re: Ebtech HumX [url]http://support.fluke.com/find-sales/Download/Asset/2793260_6116_ENG_A_W.PDF[/url] The Fluke 110 series meters (113, 115, 117, etc.) have a LowZ mode that's about 3K - plenty to trip a GFCI. Obviously not enough to trip a breaker. They also have normal volts mode with an impedance of 5M which would be fine for circuit testing. Hopefully the situations that Jay has encountered where breakers were tripped were GFCI breakers - If he really was tripping a regular breaker with a meter something is radically wrong. Jay - I understand your concerns about being easy to work with in the eyes of the venue, but I've never been at a gig that was imporant enough to risk blowing up large chunks of my PA by not testing. Even if the gig were that important, it still wouldn't be worthwhile, because blown gear does not a successful gig make. You test so that you have confidence the power is good. If it isn't, then you either find different power or you don't do the gig. [/QUOTE]

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