Joe, As I recall, I just sent an email to sa...@krohn-hite.com regarding my CR103 and how to obtain the manual.
I can go back through the emails but it will take a while to find out who sent it to me. Joe -----Original Message----- From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On Behalf Of Joseph Gray Sent: Sunday, July 28, 2013 6:02 PM To: Discussion of precise voltage measurement Subject: Re: [volt-nuts] EDC VS330 Voltage Standard Thanks for the subject. Actually, I had intended to put that exact subject on it, but forgot and clicked send. I couldn't find even a partial manual for the VS330, but the 1030A partial manual looks like it would be very similar. Would you please send me the email contact at K-H that sent you the manual? Joe Gray W5JG On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham <jlt...@att.net> wrote: > Joe, > > Pardon my adding a 'subject' to the thread. > > If all you want is a 'house standard', you're probably 'in the ball park'. > If you want to set up a home 'metrology lab' (careful, this 'metrology' > stuff can be as addicting as the 'time' stuff), you should get > something calibrated by an outside lab. I would send the highest > resolution meter out for cal. I don't know if calibration services > are available for the VS330. > > If the 3478A is it, I would vote to send the 3478A to Agilent for > their 'Agilent' cal ($204.22 per their website) and see where you are. > The meters I have sent to Agilent for their 'Agilent' cal, come back > with 'as found' > and 'as left' values and is very informative about the capabilities of > the meters. The meters I have returned for a repeat 'Agilent' cal > have all returned with their 'as found' values still in cal. > > Once you get the 3478A back, you will have a number of 'calibrated' > measurement capabilities. > > Do you have a manual? I have an EDC CR103 voltage and current > standard and was able to find a 'partial' manual on the web. It noted > that a complete manual was available from Krohn-Hite and to contact > them at (508) 508-1660 or sa...@krohn-hite.com to purchase a complete > manual. When I emailed them about obtaining one, I received a > complete .PDF manual by return email from one of their service > engineers. Others have had a similar experience. > When > asked, Krohn-Hite asked that the manuals not be 'shared'. So, if you > can't find one, you might try contacting them. > > Good luck. > > Joe > > > > -----Original Message----- > From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] > On Behalf Of Joseph Gray > Sent: Sunday, July 28, 2013 4:06 PM > To: volt-nuts@febo.com > Subject: [volt-nuts] (no subject) > > I just had a friend buy this for me (I don't have an ebay account). I > hope I didn't make a mistake. > > > http://www.ebay.com/itm/Electronic-Development-Corporation-EDC-VS330-V > OLTAGE > > -STANDARD-/161069656213?nma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&o > rig_cv > ip=true&rt=nc&_trksid=p2047675.l2557 > > Of course, once I have it, it's the chicken and egg problem. The best > I have to check it against is an HP 3478A that was last calibrated an > unknown number of years ago. It has a little round sticker over the > CAL switch on the front, but no dated calibration label that I can > see. It came from a repair facility that closed a few years ago. > > Actually, the reason I was tempted to buy the VS330 was because I > think the 3478A is off a bit. A while back, I built a simple 5V > reference with a MAX6350. The 3478A read high. I took the reference to > work and the best Fluke handheld we have was dead on (I don't remember the model right now). > > I made the measurement again last night and the 3478A reads 5.0026 V, > with the last digit fluctuating. Room temperature was 26 C. > > I guess obsessing about these things has brought me here to the Volt Nuts. > I have been on Time Nuts for several years. > > Joe Gray > W5JG > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > > _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.