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Atomic 5000.1 Clamp Testing
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<blockquote data-quote="SPL15" data-source="post: 4666854" data-attributes="member: 594830"><p>Ya, the 50 or 60 hz thing is also a critical note. Cheap meters are calibrated to 60 hz usually. They figure you'll be measuring ac from the wall so it is calibrated to 60 hz.</p><p></p><p>Depending on how it is designed, it may measure lower or higher than what it really is.</p><p></p><p>Good meters like my Fluke 179 do much better at frequencies other than 60 hz sine waves. They also measure square waves and waves that arent a true sine wave MUCH more accurately into an RMS figure.</p><p></p><p>Not saying your results arent accurate, but the tests are only as good as the test equipment.</p><p></p><p>Either way, the numbers are impressive</p></blockquote><p></p>
[QUOTE="SPL15, post: 4666854, member: 594830"] Ya, the 50 or 60 hz thing is also a critical note. Cheap meters are calibrated to 60 hz usually. They figure you'll be measuring ac from the wall so it is calibrated to 60 hz. Depending on how it is designed, it may measure lower or higher than what it really is. Good meters like my Fluke 179 do much better at frequencies other than 60 hz sine waves. They also measure square waves and waves that arent a true sine wave MUCH more accurately into an RMS figure. Not saying your results arent accurate, but the tests are only as good as the test equipment. Either way, the numbers are impressive [/QUOTE]
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