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Author Topic: Fluke historical app. note "Changing to the 1990 Volt and Ohm"  (Read 2794 times)

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Offline lowimpedanceTopic starter

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Fluke historical app. note "Changing to the 1990 Volt and Ohm"
« on: June 28, 2018, 05:36:41 am »
 The application note I have uploaded ,(in parts, sorry, due to this forum limitations), maybe of interest to the hard core 'nuts' who may not have seen it yet!.
Forgot which pile of papers I was searching through when it surfaced and couldn't find much reference on the web, (simple lazy search :P), so .......Just for document preservation and your casual entertainment of course .....here it is.
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The odd multimeter or 2 or 3 or 4...or........can't remember !.
 
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Offline lowimpedanceTopic starter

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Re: Fluke historical app. note "Changing to the 1990 Volt and Ohm"
« Reply #1 on: June 28, 2018, 05:37:36 am »
last bits  ::)
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The odd multimeter or 2 or 3 or 4...or........can't remember !.
 
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Offline AG7CK

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Re: Fluke historical app. note "Changing to the 1990 Volt and Ohm"
« Reply #2 on: June 28, 2018, 12:18:57 pm »
And here is the sticker mentioned in the document on a Fluke 8505A DMM from ... eh .. 1990  ??? :-DMM


« Last Edit: June 28, 2018, 12:20:30 pm by AG7CK »
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Online Dr. Frank

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Re: Fluke historical app. note "Changing to the 1990 Volt and Ohm"
« Reply #3 on: June 28, 2018, 01:40:39 pm »
This procedure was contained initially in the NIST Technical Note 1263: 'Guidelines for Implementing the New Representations of the Volt and Ohm Effective January 1, 1990'.

The document is about 8MB, so I can't upload it here, and it's not found by searching the NIST any more.

Anyhow, maybe there will also be a similar procedure for the New Volt and Ohm 2019, as the difference between the current and future (final) representation can just be detected by the most sophisticated / maintained secondary standards.

https://www.eevblog.com/forum/metrology/new-kilogram-volt-and-ohm-are-ready-for-si-2018/msg1344582/#msg1344582

Frank
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Offline TiN

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Re: Fluke historical app. note "Changing to the 1990 Volt and Ohm"
« Reply #4 on: June 28, 2018, 02:42:25 pm »
My FTP does not have any silly size limits :)
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Offline Conrad Hoffman

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Re: Fluke historical app. note "Changing to the 1990 Volt and Ohm"
« Reply #5 on: June 28, 2018, 05:11:35 pm »
Hey, some of my stuff is so old that the 1948 correction is of more interest-
https://www.nist.gov/sites/default/files/documents/calibrations/87mscohm.pdf
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