[volt-nuts] AC Voltage Measurement Standards

John Phillips john.phillips0 at gmail.com
Wed Jul 9 00:20:30 EDT 2014


J. L. ,
I do not know what level you are willing to pay for. I do not work in a
real high end lab but we seem to get by with checking our secondary
standards with a 3458A before and after we send it to gary to be
calibrated. We use our 10 volts and 10K resistor to calibrate the 3458A
before we send it in and then after. We look at the before and after data
as well to come up with new values for the units. Comes down to using the
3458A as the primary standard filtered by our history. The different AC
measurement methods in statistical mode can give you a good idea where your
AC values really are.

I would like to know how that compares with what the extra hardware can do.



On Tue, Jul 8, 2014 at 7:52 PM, Mitch Van Ochten <
mitch at vincentelectronics.com> wrote:

> Joe,
>
> I used a Fluke 540 for a while, and also the Fluke 8506A.  The Fluke 540 is
> MUCH more difficult to use. You need to flip the switch between two
> positions rapidly and the results you get depend somewhat on how "rapidly"
> you make the transition. For AC volts the 8506A seems very nice.
>
>
> Best regards,
>
> mitch
>
> -----Original Message-----
> From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On
> Behalf Of J. L. Trantham
> Sent: Tuesday, July 08, 2014 9:46 PM
> To: Discussion of precise voltage measurement
> Subject: [volt-nuts] AC Voltage Measurement Standards
>
> I've been thinking about adding an AC Voltage Measurement Standard to my
> shop.
>
>
>
> It would appear that most of these have to do with thermal converters.
>  Does
> anyone have any thoughts about this?
>
>
>
> I've been thinking about a Fluke 540B, 8506A, or a collection of A55
> Thermal
> Converters.  I have accurate DC measurement tools and DC standards.
>
>
>
> I would appreciate any thoughts.
>
>
>
> Thanks in advance.
>
>
>
> Joe
>
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-- 
John Phillips


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