[volt-nuts] Solartron 7081, other meters, and some voltage standards
gbusg
gbusg at comcast.net
Sun Sep 4 21:33:40 UTC 2011
Hi Joe,
Yes, that's 5 ppm difference between 3457A and black 731B.
I'm betting that your 731B, 3457A and 7081 are all in great shape at 10Vdc.
Now all you need is the proposed round-robin (or other external cal at a
lab) to know for sure.
The more I read the Solartron 7081 manual, the more interesting it looks to
me. ...Looks like some pretty clever engineering!
--Greg
----- Original Message -----
From: "J. L. Trantham" <jltran at att.net>
To: "Discussion of precise voltage measurement" <volt-nuts at febo.com>
Sent: Sunday, September 04, 2011 2:51 PM
Subject: Re: [volt-nuts] Solartron 7081, other meters,and some voltage
standards
Greg,
I did the 'ACAL' on the 3457A and the reading is basically the same,
10.00005, which, assuming I have my math correct, the 'black face' 731B is
accurate, is about 5 ppm.
Joe
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