Another wideband sensor meter/kit

[Garfield Willis]

On Wed, 23 Aug 2000 11:04:35 -0400, "Bruce Plecan" <nacelp at bright.net>
wrote:

>> The module form, like the NTK "Blue Box", would suit your purpose.
>> It's "headless" (no displays), but otherwise provides the linearized
>> analog AFR output for logging.
>
>Anyone have a clue as to what the voltages, or better yet the v to AFRs are
>for this?.
>Or is it a current?.

Uhh, you mean the curve for the NTK BlueBox, or the Egor output?
They're both voltages, BTW, not the raw pumping current; the NTK box
mimics the unlinearized sensor curve and a graph is available from NTK
when you inquire about their boxes. Egor's output of course is linear,
going from 0.25V to 4.75V over the range 10.6AFR to 18.6AFR, centered
around stoich. It's just a straight line, nuthin complicated.

Sorry I don't have a nice datasheet ready yet, but any tech questions
like this I can answer easily without concern for breaching protocol,
so fire away.

Gar

P.S. BTW, NTK has officially obsoleted all their models of the
familiar "Blue Box", and is coming out with a brand new interface box
(same price$, tho), that will NOT be backward compatible, will use a
different sensor, AND what is most intriguing, they say they're going
to be using a "mass-produced sensor" this time, not a semi-custom one
like the older NTK sensors. Can anyone say "Honda/NTK"?? Altho they
won't say, it's my guess they're themselves going to start using the
very same sensor that everybody else is now; it only makes sense. That
would of course require a non-backward compatible change in their
electronics, since the cal curve and pumping current ranges are
different. Hopefully they'll include free-air calibration in their new
interface. Apparently the output will STILL not be linearized, tho.
Interesting, no? Also, BTW, if you think only Egor is slow getting
outta the shute, they've been saying "real soon now" for nearly 6mos
on this new model, and last I heard a few weeks ago, still couldn't
say when they'd be shipping. Even the big boys drag their tails at
times. Oh sigh.


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