[volt-nuts] Datron 1082

[Randy Evans]

The schematic of the Datron 1071 DMM seems to be very similar to the Datron
1082 but I'm sure there are differences.  Unfortunately, I have not been
able to locate the 1082 Service Manual with the parts lists and schematics.
 The 1071 manual does have a similar or identical battery but I can't find
the part number in the 1071  parts list.  Does anyone know the part number
of the memory battery in the 1082 or 1071, or the characteristics; e.g.,
voltage and A-H rating?

Thanks,

Randy Evans AE6YG


On Mon, Apr 21, 2014 at 8:32 PM, Tom Knox <actast at hotmail.com> wrote:

> Sorry I wasn't clear. I think the errors you are experiencing are because
> the memory battery is gone, so it won't matter now, this is for saving the
> cal data during future replacement to avoid these problems again.
> Best Wishes;
> Thomas Knox
>
>
>
> > Date: Mon, 21 Apr 2014 19:59:29 -0700
> > From: randyevans2688 at gmail.com
> > To: volt-nuts at febo.com
> > Subject: Re: [volt-nuts] Datron 1082
> >
> > Tom,
> >
> > I would think with 0.08 VDC the battery is dead and all the memory is
> gone.
> >  Do you think it would make any difference if I paralleled the leads
> with a
> > new one?  I don't have a parts list to know what type the battery is so
> > it's going to be a challenge to find a direct replacement.  Wish I had a
> > manual.
> >
> > Randy
> >
> >
> > On Mon, Apr 21, 2014 at 7:54 PM, Tom Knox <actast at hotmail.com> wrote:
> >
> > > Randy I would say from my experience with Datron there is about 90%
> chance
> > > the battery and recal will solve the problem. I would modify the
> battery
> > > with a coupe sets of leads that are long enough so you can install a
> new
> > > while the old battery is still in circuit.
> > > Best Wishes;
> > > Thomas Knox
> > >
> > >
> > >
> > > > Date: Mon, 21 Apr 2014 19:23:35 -0700
> > > > From: randyevans2688 at gmail.com
> > > > To: volt-nuts at febo.com
> > > > Subject: Re: [volt-nuts] Datron 1082
> > > >
> > > > I believe the voltages are correct but I have no schematics or
> > > > troubleshooting instructions to confirm.  I do see what looks like a
> > > > battery in the memory section of the 1082 and it measures 0.08 VDC.
> Not a
> > > > good sign.  I am really hoping someone has a Datron 1082 Service
> manual
> > > > with schematics that they can steer me to, preferably a soft copy so
> I
> > > can
> > > > better troubleshoot the unit.  It might just need a new battery
> (plus a
> > > > re-cal) to get it going again but I hate going blind.
> > > >
> > > > Randy
> > > >
> > > >
> > > > On Mon, Apr 21, 2014 at 8:15 AM, Tom Knox <actast at hotmail.com>
> wrote:
> > > >
> > > > > As with many products of this age the tantalum caps are a common
> point
> > > of
> > > > > failure in the 1082.
> > > > > Although this current problem sounds like a memory battery.
> > > > >
> > > > > Thomas Knox
> > > > >
> > > > >
> > > > >
> > > > > > Date: Mon, 21 Apr 2014 11:03:56 -0400
> > > > > > From: cfharris at erols.com
> > > > > > To: volt-nuts at febo.com
> > > > > > Subject: Re: [volt-nuts] Datron 1082
> > > > > >
> > > > > > Just in case you haven't yet: Always start any investigation with
> > > > > > checking the power supply for voltage and ripple.  Test the main
> > > > > > electrolytic capacitors for capacitance, and ESR.
> > > > > >
> > > > > > Nothing in the unit's self testing ability can be trusted if the
> > > > > > power supply is putting out large amounts of ripple, or is at the
> > > > > > wrong voltage.
> > > > > >
> > > > > > -Chuck Harris
> > > > > >
> > > > > > Randy Evans wrote:
> > > > > > > I have a Datron 1082 DMM that just recently stopped working.
>  When
> > > I
> > > > > power
> > > > > > > up, it gives a "FAIL" message on the front panel.  I found a
> > > flowchart
> > > > > in
> > > > > > > an abbreviated servicing manual that indicates it's from a
> failure
> > > of
> > > > > the
> > > > > > > "Check for uncorrupted calibration store".  I Assume this
> likely
> > > means
> > > > > the
> > > > > > > cal tables are corrupted?  Unfortunately, I don't have
> sufficient
> > > > > > > information (e.g., schematics) to do any further
> troubleshooting.
> > >  Can
> > > > > > > anyone help with a complete servicing manual and/or further
> > > diagnostic
> > > > > help?
> > > > > > >
> > > > > > >
> > > > > > > I did download the Datron 1071DMM  O&S manual from K04BB but I
> > > don't
> > > > > know
> > > > > > > how similar it is to the 1082.  Can anyone comment on what the
> > > > > differences
> > > > > > > are?
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Thanks,
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Randy Evans
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