EEVblog Electronics Community Forum

Products => Test Equipment => Topic started by: JimmyJo on June 05, 2017, 01:48:46 pm

Title: Keysight Service Note, specification change for the 3446xA/34470A Series DMMs
Post by: JimmyJo on June 05, 2017, 01:48:46 pm

http://literature.cdn.keysight.com/litweb/pdf/34461A-04.pdf (http://literature.cdn.keysight.com/litweb/pdf/34461A-04.pdf)

I regularly use my 61 and 65 to measure these voltages, how screwed am I?

Title: Re: Keysight Service Note, specification change for the 3446xA/34470A Series DMMs
Post by: gslick on June 05, 2017, 02:10:23 pm

Already a long thread about this:

https://www.eevblog.com/forum/testgear/keysight-34460a34461a34465a34470a-maximum-allowable-voltage-change-notice/ (https://www.eevblog.com/forum/testgear/keysight-34460a34461a34465a34470a-maximum-allowable-voltage-change-notice/)

Title: Re: Keysight Service Note, specification change for the 3446xA/34470A Series DMMs
Post by: boggis the cat on June 07, 2017, 04:18:30 am

Simple answer: there was never an actual problem.

If your instrument has "600 Vdc / 440 Vac" labels on the front and back, you should peel them off.

(See https://servicenotes.literature.keysight.com/litapp/SearchSN.do?method=openExternalSNSearch&prodNum=34461A (https://servicenotes.literature.keysight.com/litapp/SearchSN.do?method=openExternalSNSearch&prodNum=34461A), Service Note No 34461A-04A.)