WB O2 Success
Kevin _
kiggly at hotmail.com
Mon Dec 10 23:33:55 GMT 2001
I don't know exactly how the DIY-WB board's circuitry is set up to heat the
sensor, but I do know you should be able to heat it a bunch quicker than
that. The production NTK driver box heats the sensor in about 5 seconds and
the Horriba driver box heats the sensor in less than 10 seconds. I can't
confirm that you can just drop down the resistance to accomplish this
properly and safely though.
Kevin
>There should be some 15 ohm resistors left over from the parts
>kit. Add some of these time across R4 (the big 1 ohm), until the
>sensor warms up between 45 and 60 seconds. (That is in
>parallel with R4).
>
>BobR.
>
>
> >
> > Question: It takes exactly four minutes for the sensor to heat up and
>the
> > LED to light. Is four minutes heating time typical? This is a bit too
> > long for my liking. I assume that there is a need to control the rate
>of
> > heating the sensor or else we wouldn't have the elaborate heater power
> > supply. I would like to shorten the heating time if possible. Any
> > comments on what the effect of shortening the heating time would be?
> >
> > Thanks,
> > Neil
> >
> >
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