Question on Monitoring O2 Voltage...

[Len Sabatine]

     Zero and Span Adjustment may be a good thing should  one opt
     for the additional ckt. BTW many Data Aq boards also readily accept
     0-5 or 0- 10 VDC signal ranges , which again , may be helpful, altho no
     great revelation.
     So as to not complicate the Diy-WB project before it's on more benches,
     such mods could be optional per user.
     One last thing , maybe I missed discussion about free air calibration 
of the
     WB Ckt with WB O2 connected , prior to usage.
     Len

>IMO, it would work but I would like to see something with a little wider
>input voltage range.  This only has a 200 Mv input voltage.  I am sure that
>they probably also make one that has a 2000 mv input as well, & I think that
>would be a better choice.  we have one @ work that is a 2000 mv input that I
>have used for a number of projects, but even with the volume that we buy
>them in they are still $65 each.  If anyone is interested I can post the
>zero & span adjustment circuit that I will probably use for mine.  I need to
>find a different op-amp for it as the one that I am using right now is a
>+/-15 Vdc unit, but I have that power in my instruments @ work so it is
>simple to pull power for them & this is what I have on the shelf @ work.
>
>BW
>
>-----Original Message-----
>From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
>Of OneSS2NV at aol.com
>Sent: Thursday, August 23, 2001 3:43 PM
>To: gmecm at diy-efi.org
>Subject: Question on Monitoring O2 Voltage...
>
>
>Hello all,
>    Has anyone from the list checked out this item on the PartsExpress.com
>website?  It's a digital panel meter, with selectable decimal point and 12V
>operation.  The part number is #075-400, which you can type into the Quick
>Search field on their website.  Do you think this meter could be wired in
>series with an O2 sensor to monitor real-time voltage?  I do like the idea
>of
>a real voltage display, rather than an Intellitronix Rich/Lean Indicator.
>
>       Thanks in advance,
>             Steve Ragusa
>              North Jersey
>         '85 Monte SS w TPI
>       www.bowtiepower.com
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