[time-nuts] OT: Basics of voltage calibration?
To John Ackermann! My recommendation for documents about DC-voltage-standards are the Fluke sites. Go to service/manuals, e.g.: http://www.fluke.co.uk/comx/manuals.aspx?locale=ukenpid=0 They still produce the best and most accurate DC calibrators and standards, and to my biggest pleasure, they recently scanned all manuals of actual and outdated devices. The manuals contain schematics, setup of complete reference system, and best read 'principle of operation'. For a complete system, you need the following devices / instruction manuals, just search for the product names and download: 1. Zener based Voltage References: 731A, 732A, 732B, 7000 (LTZ based, w.o. schematics) For the actual 7000 system, also search for the underlying UK patent GB 2 258 356 A, from John Robert Pickering (1993). The temperature hysteresis of the LTZ1000 zener reference is mitigated by a temperature cycling process. 2. Calibrators: 332A, 332D, 335D, (old devices, but very instructive for complete system); 5700A, 5720A 3. Kelvin Varley Divider: 720A (7 digits, 0.1ppm linearity) 4. Reference Divider: 752A (provides highly accurate transfers of 1:100, 1:10, 1:1, 10:1, 100:1 for the 5 cardinal DC points) 5. Null detector: 845A (see also schematics of 335D) To learn about precision resistors, goto vishay site, ultra high precision resistors, technical and application notes, datasheet: http://www.vishay.com/resistors-discrete/metal-foil/ Also: Zero TC Foil Resistor, Ten Fold Improvement in Tempertaure Coefficient, Reuven Goldstein et.al. Brian Kirby already summed up the other most important sources. Frank Stellmach ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT: Basics of voltage calibration?
Dr. Frank Stellmach wrote: To John Ackermann! My recommendation for documents about DC-voltage-standards are the Fluke sites. Go to service/manuals, e.g.: http://www.fluke.co.uk/comx/manuals.aspx?locale=ukenpid=0 They still produce the best and most accurate DC calibrators and standards, and to my biggest pleasure, they recently scanned all manuals of actual and outdated devices. All is perhaps a little too inclusive. They haven't scanned a single Fluke instrument from my lab. To wit: 5200A, 343A, 8060A. -Chuck Harris ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] OT: Basics of voltage calibration? Fluke manuals
Chuck, try '341A', this manual covers the 343A also. (different beta string only) I've got the 5100, 5205, 5215 manuals from their site, perhaps something comes close to your 5200. Frank ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] OT: Basics of voltage calibration? Fluke manual 5200A
Chuck, I just have found the 5200A manual addendum here: http://us.fluke.com/usen/support/manuals/default.htm?prodcategory=OBS The others I mentioned are the power amps only. Fluke still scans on, so look for other manuals later. Frank ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT: Basics of voltage calibration? Fluke manual 5200A
Hi Frank, Thanks! And they did a really good job with the scanning too. They are using a nice auto feeding scanner that seems to be very well setup. Their searching tools could use some improvement, though. I searched for 5200, 5200A, 341, 341A, 343, 343A, 8060, 8060A, and it didn't find any of them. And I scanned through the lists they had for the various instrument types without success. Apparently you have found a better area to look. -Chuck Harris Dr. Frank Stellmach wrote: Chuck, I just have found the 5200A manual addendum here: http://us.fluke.com/usen/support/manuals/default.htm?prodcategory=OBS The others I mentioned are the power amps only. Fluke still scans on, so look for other manuals later. Frank ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT: Basics of voltage calibration? Fluke manual5200A
Re..the Fluke manual downloads - - try the Australian Fluke website - - they have the best selection of all. Roy - Original Message - From: Chuck Harris cfhar...@erols.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sunday, March 22, 2009 9:35 PM Subject: Re: [time-nuts] OT: Basics of voltage calibration? Fluke manual5200A Hi Frank, Thanks! And they did a really good job with the scanning too. They are using a nice auto feeding scanner that seems to be very well setup. Their searching tools could use some improvement, though. I searched for 5200, 5200A, 341, 341A, 343, 343A, 8060, 8060A, and it didn't find any of them. And I scanned through the lists they had for the various instrument types without success. Apparently you have found a better area to look. -Chuck Harris Dr. Frank Stellmach wrote: Chuck, I just have found the 5200A manual addendum here: http://us.fluke.com/usen/support/manuals/default.htm?prodcategory=OBS The others I mentioned are the power amps only. Fluke still scans on, so look for other manuals later. Frank ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
