Hi Charlie, partial success, calibrate,refresh worked, the display told me so, but the calibrate,dump command did not do anything visible.
M K > Date: Tue, 15 Jan 2013 18:08:02 -0800 > From: [email protected] > To: [email protected] > Subject: Re: [volt-nuts] vSolartron7081 rom reading > > MK, > > All you need to do is unplug the jones plug where the key wiring goes to > the circuit board. No need to do any wiring! > > Charlie > > > On 1/15/2013 5:00 PM, J. L. Trantham wrote: > > MK, > > > > Where are you? If you can't get a key made, I can probably send you one. > > > > IIRC, you can 'activate' the key by removing a wire from the key switch. > > That places it in 'CAL' mode. The schematic easily demonstrates this. I > > don't think it was 'shorting' the two switch wires. Of course that requires > > you to remove the top of the meter. > > > > Joe > > > > -----Original Message----- > > From: [email protected] [mailto:[email protected]] On > > Behalf Of m k > > Sent: Tuesday, January 15, 2013 4:30 PM > > To: [email protected] > > Subject: Re: [volt-nuts] vSolartron7081 rom reading > > > > > > I just noticed a gotcha, I need to set the key to calibrate before I may > > issue those commands, I guess I need a key. I have printed off the photo and > > measurements someone on this board did, now to get to a key shop... > > > > M K > > > >> From: [email protected] > >> To: [email protected] > >> Date: Sun, 13 Jan 2013 17:14:07 +0000 > >> Subject: Re: [volt-nuts] vSolartron7081 rom reading > >> > >> If all you want is to save the calibration factors, just issue > >> CALIBRATE,DUMP command > >> > >> To refresh the EAROM calibration factors, issue CALIBRATE,REFRESH - > > barring component failure that should be good for another ten years or so. > > You can also display the NVM contents with the MONITOR command, but NOT > > re-write them. > >> The only way that I am aware of that will write the caibration constants > > if they have been lost is to run a full calibration. > >> Again all this in chapter 8. > >> > >> I don't know which ROM programmers that can read or write the ER3400 (just > > ignorance - there may be loads). > >> > >> Regards, > >> David Partridge > >> -----Original Message----- > >> From: [email protected] [mailto:[email protected]] > >> On Behalf Of m k > >> Sent: 13 January 2013 16:57 > >> To: [email protected] > >> Subject: Re: [volt-nuts] vSolartron7081 rom reading > >> > >> > >> Hi David, > >> > >> well it is currently working and close to calibrated as far as I can tell. > > But I want to get those calibration factors saved before it dies on me. Last > > calibrated 2008, and well down on drift by now. > >> I get a diurnal 0.14 microvolt drift with a shorting plug that stays on > > when not in use. a drift of about 0.1 microvolts in about 3 weeks. Nothing > > else to confirm anything else as I have only just got it chatting out > > through the rs232. > >> I will have to buy something to read them with. > >> > >> M K > >> > >> > >> _______________________________________________ > >> 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.
