No Problem, share with TiN if it helps. BR PeLuLe
> Gesendet: Dienstag, 09. Februar 2016 um 01:15 Uhr > Von: "Todd Micallef" <[email protected]> > An: "Discussion of precise voltage measurement" <[email protected]> > Betreff: Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for > CALRAM-Readout > > PeLuLe, > > Thanks for your help. I have been following you on EEVblog too. I go by > ManateeMafia. TiN has been very helpful at getting my article together and > he has a good way of explaining the info, He has been helping with the > photo editing too as you can tell from his other articles he likes lots of > detail, > > If you don't mind, I will share the dropbox link with him and he will place > the info into the article with the proper credit given to you. The > firmware is helpful and I believe my second meter has the same version. > > Todd > > > On Mon, Feb 8, 2016 at 5:46 PM, <[email protected]> wrote: > > > Thanks for the link, Todd. > > > > It's a great site, I didn't find, even I looked for it. I regular check > > xDevs for interesting project. > > > > I have looked to the page and found a minor errors I like to note: > > The "Datron 1281 Calibration and service manual, Volume 1, Issue 1, July > > 1989" > > in fact is the complete SM (Vol1 and Vol2), I know as I have uploaded to > > KO4BB myself :-) > > > > My firmware is: v3.12, 05/11/96. I have placed the ROM files to a Dropbox > > folder. > > > > On the site is mentioned, you are looking for the specs of the DC405E2 > > (VFD 1x40 DOT Matrix Display). > > I could manage to get the original spec from ITRON service some years ago > > (I am a good customer). > > I have optimized and added some useful information. I dropped to the > > Dropbox also. > > > > I had the plan for a "Datron 1281 DC4052 replacement". Mine was broken on > > shipping. > > I have added a picture of latest state of project. > > It's on hold, as I got a complete Display Assembly and had no need for > > anymore. > > > > I will keep the Dropbox for one week, than I will delete as I need the > > space for a joined project. > > Link: > > https://www.dropbox.com/sh/rxeb86eq9m35tyu/AADwDNeCYQWp4RSZ2rVQ3y-ua?dl=0 > > > > BR > > PeLuLe > > > > > > > > > Gesendet: Montag, 08. Februar 2016 um 00:56 Uhr > > > Von: "Todd Micallef" <[email protected]> > > > An: "Discussion of precise voltage measurement" <[email protected]> > > > Betreff: Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for > > CALRAM-Readout > > > > > > https://xdevs.com/fix/d1281/ > > > > > > > > > > > > On Sun, Feb 7, 2016 at 6:43 PM, <[email protected]> wrote: > > > > > > > Hi Todd, > > > > have tried to find the information @ xDevs. No luck. > > > > Is there a link you can share? > > > > > > > > BR > > > > PeLuLe > > > > > > > > > > > > > Gesendet: Sonntag, 07. Februar 2016 um 21:59 Uhr > > > > > Von: "Todd Micallef" <[email protected]> > > > > > An: "Discussion of precise voltage measurement" <[email protected]> > > > > > Betreff: Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for > > > > CALRAM-Readout > > > > > > > > > > PeLuLe, > > > > > > > > > > I am currently working on two 1281's. If you have anything you would > > like > > > > > me to try, let me know. I am certain my cal constants are not good > > on one > > > > > of them. The battery was just changed a few days ago and it appears > > to be > > > > > the original from '87. I also had some intermittent NVRAM errors. > > > > > > > > > > Replacing caps worked for the first 1281 and cleared the DCV 2182 > > error. > > > > > The project is a WIP and everything is being documented on xDevs. > > > > > > > > > > Also, please post your FW versions. Both of mine are at different > > revs > > > > and > > > > > I would like to know the different versions from Datron/Wavetek > > > > > > > > > > On Sun, Feb 7, 2016 at 2:33 PM, <[email protected]> wrote: > > > > > > > > > > > > > > > > > > > > > > > > Gesendet: Sonntag, 07. Februar 2016 um 18:30 Uhr > > > > > > > Von: [email protected] > > > > > > > An: [email protected] > > > > > > > Cc: "Adrian Bernhard" <[email protected]> > > > > > > > Betreff: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout > > > > > > > > > > > > > > Hi volt-nuts > > > > > > > > > > > > > > I like to backup the Datron 1281 CAL RAM data. Mine need to be > > > > > > refurbished (caps replacement, case cleaning...) > > > > > > > The 1281 quite good in cal (~3ppm difference to my 3458A which > > had > > > > last > > > > > > cal 2014/OCT), which I don't want to risk. > > > > > > > In any case this migh a helful knowledge for all of us. > > > > > > > > > > > > > > I am lucky having another 1281 "for part" without a Display- and > > > > > > DC-Assembly but a wokring Digital Board. > > > > > > > I dumped the ROM to have a deep look into the GPIB commands and > > > > searched > > > > > > for potential undocumented existing > > > > > > > (like it was done for the 3458A already). > > > > > > > > > > > > > > I found following, in the service and user manual not documented, > > > > > > potential commands (?): > > > > > > > RAM = may a RAM command, seems to be the best chance > > > > > > > PRIM = may a subfunction of RAM for primary RAM > > > > > > > SECN = may a subfunction of RAM for secondary RAM > > > > > > > > > > > > > > IPZ = no glue yet > > > > > > > > > > > > > > YEUK = command to set something, no glue yet about function > > > > > > > YEUK? = query comand of the YEUK command > > > > > > > > > > > > > > CALISS? = seems to be a qery for calibration purpose > > > > > > > > > > > > > > To (hopefully) save some of the allways limited private time, I > > would > > > > > > like to aks, if some of you have seen that commands (?) or have > > more > > > > > > details on them. They may used at other Daltron tools also... > > > > > > > Next I will start with the debugging of the unknown remaining > > > > commands > > > > > > on processor board level. > > > > > > > > > > > > > > Thanks for help already in advance. > > > > > > > BR > > > > > > > PeLuLe > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > 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. > > > > > > > > > > > _______________________________________________ > > > > > 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. > > > > > > > > > _______________________________________________ > > > > 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. > > > > > > > _______________________________________________ > > > 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. > > > > > _______________________________________________ > > 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. > > > _______________________________________________ > 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. > _______________________________________________ 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.
