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EEVblog #417 – Fluke CNX3000 Wireless Multimeter Teardown
Posted on January 30th, 2013 5 comments
Inside Fluke’s new CNX3000 Wireless Multimeter.
Also, the CNX t3000 K-Type Thermocouple, CNX i300o iFlex probe, CNX v3000 wireless ac voltage meter, and CNX a3000 wireless ac clamp meter.Forum Topic HERE
5 responses to “EEVblog #417 – Fluke CNX3000 Wireless Multimeter Teardown”
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Dave: I think the structures around the screws are blast shielding to keep arcs away from the conductive screws.
I think there’s a manufacturing error at 30:42.
The LCD bezel which is supposed to be grounded by the retaining tabs, isn’t grounded because the tabs are bent to the wrong side.
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I see this same thing in current clamp. Exactly at 21:04. Those metal tabs should be bent to contact those big square pads.
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The connector at 8:20 looks like a micro sd card interface. Maybe it is some sort of SDIO interface.
Bye,
Simon-
more likely just the same connector, but nothing to do with the sd protocol.
The pads on the wireless board (12:24) share the same pad layout as a micro sd card ( http://upload.wikimedia.org/wikipedia/commons/thumb/6/67/SD_Cards.svg/1000px-SD_Cards.svg.png ). The two longer pins should be power in both cases.
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Warren May 6th, 2013 at 13:51
Hello from Everett, WA! The Fluke factory is just down the road from my house. Also, there’s a big airplane factory that I work for nearby, the name escapes me…
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Flemming Frandsen January 31st, 2013 at 05:51