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Muti AC input measurement?

Question asked by rkruz on Oct 6, 2012
Latest reply on Nov 29, 2012 by zte@mhnyma.com

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Are you aware of devices or devices I can configure as shown notionally in the attached drawing?

Needing to measure 220VAC 3ph on 15 different inputs and select input and report voltage RMS via Ethernet or USB to the test controller.

Any hints appreciated.

thank you

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ulf.jakobsson Nov 5, 2012 2:21 AM
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The high voltage makes trouble finding an "off the shelf" solution, I guess.
Maybe a solution would be to use an USB I/O box controlling a set of relays connecting to a measuring device like a DMM giving you the values needed.
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zte@mhnyma.com Nov 29, 2012 10:54 PM
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> {quote:title=rkruz wrote:}{quote} ... Needing to measure 220VAC 3ph on 15 different inputs and select input and report voltage RMS via Ethernet or USB to the test controller.

You need a high voltage input multiplexer like the [N2270A|www.home.agilent.com/en/pd-1000003582%3Aepsg%3Apro-pn-N2270A] (1000V inputs) which is obsoleted. Take a look at the [34901A|www.home.agilent.com/en/pd-1000000083%3Aepsg%3Apro-pn-34901A] (300V) or you may consider to construct your own (USB i/f, microcontroller, drivers, relays, cabling I/O).
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