What Labs Are Out There To Cal A Fluke 792A (Accredited)

Started by Hawaii596, 10-07-2011 -- 09:12:20

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Hawaii596

10-07-2011 -- 09:12:20 Last Edit: 10-07-2011 -- 09:13:55 by Hawaii596
As part of my electrical standards lab project, I'm digging around to see what labs are out there with capability to cal a Fluke 792A.  I've found a couple.  To simplify the preliminary search I'm comparing the 1V at 1 KHz uncertainty (then look at the whole spread once I've found some possible alternatives).  I've found a couple that are 6 ppm and 8 ppm respectively at that.  I knew there wouldn't be many labs out there to support this, but figured I'd at least check with the folks on here.

It looks like Fluke's primary lab uses a golden 792A and does a comparison.  Any way, any inputs would be welcome.  If you want to avoid commercializing the forums, please feel free to send me a PM with thoughts.

NOTE:  I'm also interested in even international labs that are ILAC affiliate (i.e.:  their AB is a member of ILAC).
"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind."
Lord Kelvin (1824-1907)
from lecture to the Institute of Civil Engineers, 3 May 1883

DAVETEE

#1
10-07-2011 -- 12:32:38
I'm personally familiar with the method used at Fluke and know the uncertainties to be genuine, if it were my choice I'd go with Fluke. Another thing to think about is if the 792 will be used with A40 shunts. I don't work at Fluke.

measure

#2
10-14-2011 -- 14:23:34
You don't say whether or not the facility has to be in the US or not. If not, http://1acal.de/index_en.php?m= in Germany can do it (ISO 17025 accredited, traceable directly to the PTB) with lower uncertainties than you can currently receive from NIST at a much lower price, or so I'm told.

USMCPMEL

#3
10-16-2011 -- 12:11:09
Won't the shipping kill you though??? I have to send something over to switzerland every year and it costs like $1000 round trip.

Hawaii596

#4
10-17-2011 -- 11:01:56
This is an expensive cal any way.  In process of working on getting my standards lab on line, I want to review all the possibilities.  I don't doubt that Fluke can do a very high quality cal, and I am not at all suspicious of their work.  So I don't want any negative perception there.  I do want the best uncertainties for the most reasonable price.  I have heard now that Switzerland has some very good uncertainties at a reasonable cost, and in the recent post about Germany.  So I will weigh in the shipping, total cost and uncertainties to determine where we send it.  I have a lot of history, and may not need to go with 12 month interval (still have to do the math to see what interval I need to maintain the uncertainties I need).  Thanks all for the inputs.
"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind."
Lord Kelvin (1824-1907)
from lecture to the Institute of Civil Engineers, 3 May 1883

Hawaii596

#5
10-26-2012 -- 08:25:51
As this project is moving forward little by little, I want to identify procedures to cal Fluke 5790A, Fluke 5720A, Fluke 5700A, cal of high accuracy standard resistances usiong Guildline 9975, and cal methods for hot cals of Fluke 732A/732B/Datron 4910 (which include method to establish best uncertainties).  Oh, and also 90 day spec procedure for HP 3458A (you know, the one that needs to be described in two lines on another thread).

I have GIDEP access, so any "K" or Navair procedure #'s would be helpful, then I can pull them on my own.
"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind."
Lord Kelvin (1824-1907)
from lecture to the Institute of Civil Engineers, 3 May 1883
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