[volt-nuts] vSolartron7081 rom reading

Thu Jan 17 13:20:50 UTC 2013

MK,

The 'VDD BSW  8 De 86  8 50' suggests you have the latest version of the
EPROM's, the files of which have been posted at various sites.

Good luck on the key.  Someone in Italy (IIRC) was able to do from the
pictures.

Joe

-----Original Message-----
From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On
Behalf Of m k
Sent: Wednesday, January 16, 2013 12:40 PM
To: volt-nuts at febo.com
Subject: Re: [volt-nuts] vSolartron7081 rom reading

Hi David,

That did the trick, thanks a lot:
VDD BSW  8 De 86  8 50
out,rs232,on
OK
calibrate,dump
OK
Vdc calibration constants
-4.76837158E-06
 163.947109E-03
-4.41074371E-06
 1.63938891E+00
-3.51667404E-06
 16.3942031E+00
-5.12599945E-06
 163.937898E+00
-3.51667404E-06
 1.63941214E+03
Vac calibration constants
 326.496512E-03
 3.26632224E+00
 32.6146600E+00
 326.285192E+00
 3.26684123E+03
kOhm calibration constants
-4.76837158E-06
 165.982168E-03
-4.41074371E-06
 1.65971196E+00
-3.51667404E-06
 16.5974832E+00
-4.41074371E-06
 165.989177E+00
-3.51667404E-06
 1.65993957E+03
Top Ohms range calibration constants
-3.51667404E-06
 9.90008821E+03
 602.357685E-03
Ratio terminals calibration constant
 16.3943425E+00
Zener current token value
095
Regards,

M K

> From: david.partridge at perdrix.co.uk
> To: volt-nuts at febo.com
> Date: Wed, 16 Jan 2013 11:14:18 +0000
> Subject: Re: [volt-nuts] vSolartron7081 rom reading
> 
> You need to issue OUT,RS232,ON first, otherwise you won't see it the 
> output
> 
> 
> Regards,
> David Partridge
> -----Original Message-----
> From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] 
> On Behalf Of m k
> Sent: 16 January 2013 08:02
> To: volt-nuts at febo.com
> Subject: Re: [volt-nuts] vSolartron7081 rom reading
> 
> 
> 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: cblack at centurytel.net
> > To: volt-nuts at febo.com
> > 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: volt-nuts-bounces at febo.com 
> > > [mailto:volt-nuts-bounces at febo.com]
> > > On Behalf Of m k
> > > Sent: Tuesday, January 15, 2013 4:30 PM
> > > To: volt-nuts at febo.com
> > > 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: david.partridge at perdrix.co.uk
> > >> To: volt-nuts at febo.com
> > >> 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: volt-nuts-bounces at febo.com
> > >> [mailto:volt-nuts-bounces at febo.com]
> > >> On Behalf Of m k
> > >> Sent: 13 January 2013 16:57
> > >> To: volt-nuts at febo.com
> > >> 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
> > >>
> > >>
> > >> _______________________________________________
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> > 
> > 
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