Re: [volt-nuts] HP 3457A
Orin wrote:
The cal certificate is from AAA Calibration Equipment Specialist
Inc. at a SW Albuquerque address and is issued to AAA Equipment
Resources Inc. at a NW Albuquerque address.
Those are both the seller:
http://www.bizapedia.com/nm/AAA-CALIBRATION-EQUIPMENT-SPECIALIST-INC.html
https://aaaequipmentresources.3dcartstores.com/crm.asp?action=contactus
BTW, they don't list any accreditation on the certificate.
As I suspected. So it is vanishingly unlikely that they do traceable
calibrations, contrary to their claim.
The Fluke HQ and cal lab is twenty miles from here... I think that's
about as good as it gets, so they might be getting my business in the future.
It's hard to do better than that. The Sandia Primary Standards Lab
is right up there, too.
Best regards,
Charles
Can't remember the seller but I get a laugh at the hand typed paper "cal"
1x3 stickers.
-pete
On Aug 11, 2013 2:38 PM, "Charles Steinmetz" csteinmetz@yandex.com wrote:
Orin wrote:
The cal certificate is from AAA Calibration Equipment Specialist Inc. at
a SW Albuquerque address and is issued to AAA Equipment Resources Inc. at a
NW Albuquerque address.
Those are both the seller:
<http://www.bizapedia.com/nm/AAA-CALIBRATION-EQUIPMENT-
SPECIALIST-INC.htmlhttp://www.bizapedia.com/nm/AAA-CALIBRATION-EQUIPMENT-SPECIALIST-INC.html
<https://**aaaequipmentresources.3dcartstores.com/crm.asp?
action=contactushttps://aaaequipmentresources.3dcartstores.com/crm.asp?action=contactus
BTW, they don't list any accreditation on the certificate.
As I suspected. So it is vanishingly unlikely that they do traceable
calibrations, contrary to their claim.
The Fluke HQ and cal lab is twenty miles from here... I think that's
about as good as it gets, so they might be getting my business in the
future.
It's hard to do better than that. The Sandia Primary Standards Lab is
right up there, too.
Best regards,
Charles
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On 11 August 2013 22:34, Charles Steinmetz csteinmetz@yandex.com wrote:
Orin wrote:
BTW, they don't list any accreditation on the certificate.
As I suspected. So it is vanishingly unlikely that they do traceable
calibrations, contrary to their claim.
I see a lot of sellers selling things on ebay which are NIST tracable,
but I wonder what this means.
Let's asume I borrow a 3458A 8.5 digit DVM which has a valid (i.e.
non- goldenrubi ) NIST tracable calibration, and use the 3458A to
calibrate my 4.5 digit handheld DVM. If I work out all the
uncertainties, could I perform a NIST traceable calibration on a 6.5,
7.5 or even 8.5 digit meter using my handheld DVM? Of course, I'm not
suggesting for one minite it is reasonable to calibrate a high end DVM
with a handheld one, but could such a calibration still be NIST
traceable? It would have not a hope in hells chance of being able to
determine if a 6.5 digit DVM is in spec, but does that matter if all
the customer wanted was a NIST traceable calibration?
My VNA is going off to Agilent this week for cal. I'm just having an
Agilent calibration
https://service.home.agilent.com/infoline/public/product-service.aspx?pn=8720D&lc=eng&cc=GB
not an acredited calibration. I know, from discussions I have had with
Agilent staff, it will be the same test equipment calibrating it,
using the same automated procedures, so I don't want to pay 50% extra
for acreditation.
I trust Agilent can properly calibrate their own product. At the end
of the day a lot of this is about trust.
Dave