[volt-nuts] vSolartron7081 rom reading

m k m1k3k1 at hotmail.com
Wed Jan 16 18:39:58 UTC 2013


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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