Electronics > Metrology

USA Cal Club Round 3

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RandallMcRee:
It's time for round 3 of the US Calibration Club!

After some informal discussion there are a few ground rules that are proposed:
   Each member should have the kit for two weeks, or less, exclusive of transit time;
   If you are away, do not accept the kit (inform Randall by email), you will get the next available slot when you are ready;
   The kit recipient is responsible for USPS priority mail costs in both directions;
   It is hub and spoke, so the kit is returned to, at the moment, Randall, and sent by him to you;
   There are two options: round 2 kit only (kit2) or kit2 plus a resistor set (rkit3), they may ship separately, still trying to figure that out
   
Priority mail costs $17.10 $14.75 for kit2 in a medium flat rate box, resistor set, rkit3 is another $17.10 now $14.75
Both kits in large flat rate box: $22.80 now: $19.90

Other nice-to-haves:
   Please post in this thread any questions, comments, etc,
   Please indicate any pertinent details about your measurement setup, make and model of the DMM, last cal, if any, cables, temperature, etc.
   Please post data to xdevs.com in the USA Cal Club folder (TBD).
   
PDF instructions from round1/2 from bitseeker:
https://drive.google.com/file/d/1AoXDJ-ybEtL40Hh-SGyr5oJMXcGVgf-l/view

Instructions for uploading data to xdevs:
https://www.eevblog.com/forum/metrology/usa-cal-club-getting-started-user-guide/msg2527656/#msg2527656

EEVblog starting page for kit2:
https://www.eevblog.com/forum/metrology/usa-cal-club-getting-started-user-guide/msg2527122/#msg2527122

Intro to rkm resistor box:
https://www.eevblog.com/forum/metrology/creating-some-high-precision-resistors-for-calibration-purposes/msg4550849/#msg4550849

TiN calibrated my Keithley 2002 and recertified the FX reference in kit2:
https://xdevs.com/article/usac_2023/

TiN also donated a L&N 10K standard for the club that forms the kernel of rkit3:
https://xdevs.com/article/usac_2023/#ln4040b

LET ME KNOW IF YOU WANT TO PARTICIPATE! send PM or reply here...

Thanks,
Randall
updated to reflect postal price change, 5/24/2023

RandallMcRee:
Let's begin.  I generated a random permutation of those who signed up... and here it is:

CatalinaWow
rax
edavid
rockstedy40
SilverSolder
rsjsouza
jjoonathan
bdunham7
conrad hoffman
cscaccetti
uski
AeroETech
Smokey
maxwell3e10
1audio
RoadDog
rhb
ycui7
rockstedy40
mower
zepto
chuckb
CurtisSeizert

I will be contacting you by DM to get your contact details, etc. as the weeks roll by.

Thanks,
Randall

Rax:
I'm in, please.

bdunham7:
Me two.

CatalinaWOW:
I'll join the fun. 

I would suggest investigating a large flat rate box or even just a non-standard priority box for the kit3 option.  It seems likely the charges would be less than two medium boxes, and cuts the chances for something to go wrong in the post office in half (nah, that never happens. :-DD).

I am assuming that the precision resistors that went around with the kit in Round 2 will still be there.  Comparison data on those relative to the new resistance standard will be useful to those not wanting to do the kit3 option.

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