the GPIBKIT has it's homepage here: http://www.ke5fx.com/gpib/readme.htm
-eric On Mon, Feb 23, 2015 at 9:14 AM, new <[email protected]> wrote: > I find no 'search' function on here... How do you get to > the GPIBKIT ? > Willy > > > > On 2/20/2015 12:00 PM, [email protected] wrote: > >> Send volt-nuts mailing list submissions to >> [email protected] >> >> To subscribe or unsubscribe via the World Wide Web, visit >> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >> or, via email, send a message with subject or body 'help' to >> [email protected] >> >> You can reach the person managing the list at >> [email protected] >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of volt-nuts digest..." >> >> >> Today's Topics: >> >> 1. Fluke 725 and 726 ([email protected]) >> 2. Re: 3458a BASIC commands for today??? (cfo) >> 3. What do the NIST numbers on a calibration sheet come from and >> what do they mean? (John Phillips) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Thu, 19 Feb 2015 17:16:56 +0000 >> From: <[email protected]> >> To: volt-nuts <[email protected]> >> Subject: [volt-nuts] Fluke 725 and 726 >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset="utf-8" >> >> Can someone help me with 2 Fluke service manuals or schematics fot the >> 725 and 726 proces calibrators ? >> >> >> I have here for repair a Fluke 725 that has a fried ADC. It has been to a >> Fluke dealer for repair and you do not want to know how bad that job is >> done. (missing pads and traces , cold solderjoints, , a relais facing the >> wrong way, the -5V from the 4053 tied to gnd, a damaged resistor etc. ) >> I'm 100% sure the ADC is dead and 95% that is the only problem left but >> have not ordered a replacement yet because I hope for a manual so I can >> check the rest for hidden supprises caused by the dealer. >> >> >> The 726 from the same customer that came in this week only has a TC >> problem. I traced the TC output to an opamp and analog switch. In TC mV >> mode he measures it correct but in K mode ( I only haver K TC's ) or any >> other TC's except for N, he shows the letter of the TC so that part works. >> But no value in derees. >> >> As far as I can gues the ADC measures the voltage, and the software does >> the conversion. But in that case it is weird it measures and displays the >> voltage correct. So I think there must be some switching before the ADC but >> I can not find it. I get stuck at the opamp. >> >> and ADC because they are hidden behind the display making it hard to >> measure. I use a lab powersupply and an extender cable to the keypad but >> the display uses those bloody zebrastrips. >> >> >> A lot of the repairs I do are older, rather exotic gear with missing >> schematics/service doc so I'm used to finding my own wayvbut I'm not that >> masochistic, so I prefer to use documentation. >> >> >> Fred >> >> Schneider electronics repair bv >> >> www.schneiderelectronicsrepair.nl >> >> www.pa4tim.nl >> >> ------------------------------ >> >> Message: 2 >> Date: Thu, 19 Feb 2015 19:35:38 +0000 (UTC) >> From: cfo <[email protected]> >> To: [email protected] >> Subject: Re: [volt-nuts] 3458a BASIC commands for today??? >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset=UTF-8 >> >> On Thu, 19 Feb 2015 04:23:07 +0000, Mark Sims wrote: >> >> IF you have a GPIB interface, download the GPIBKIT package from John >>> Miles' web site. It now contains my HP3458 cal ram dumper program. It >>> will extract the cal info from the NVRAM, make a backup binary image of >>> the cal ram chip , and dump a formatted and commented listing of the >>> cal data. >>> The binary data file can be used to program a replacement NVRAM chip >>> when the battery in the old chip dies and you need to replace it... >>> saving you a buncha bucks for a re-calibration of the instrument. >>> >> I did a "linux-gpib" "addon lib" that fakes a few parts of GPIBKIT , so >> you can use Mark's/PHK's program , and i mailed the source to Mark. >> >> >> /CFO >> >> >> >> ------------------------------ >> >> Message: 3 >> Date: Thu, 19 Feb 2015 12:06:22 -0800 >> From: John Phillips <[email protected]> >> To: Discussion of precise voltage measurement <[email protected]> >> Subject: [volt-nuts] What do the NIST numbers on a calibration sheet >> come from and what do they mean? >> Message-ID: >> <CANEyv6br9ARRJ2XnHy9sqyqM6Z4WSQRNUzcMHfs=J0=2mVeqFQ@mail. >> gmail.com> >> Content-Type: text/plain; charset=UTF-8 >> >> > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/volt-nuts > and follow the instructions there. > -- --Eric _________________________________________ Eric Garner _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
