NTK UEGO calibration

[Bruce]

You can buy or mix up some calibration gases.
You have to remember these items are subject to the full wrath of the EPA.
Honda ain't gonna risk messing with them folks.  Emission stuff gets a
higher level of scrutiny, then medical stuff anymore.
Also, remember, this isn't a lab grade unit.
If you wanting to get critical, and absolute then save your money for the
units that claim that accuracy.
Bruce


From: <Neil.Poersch at mts.mb.ca>
Subject: Re: NTK UEGO calibration
> This begs the question about how is the DIY WB O2 unit calibrated?
Looking
> at the schematic the UEGO sensor's calibration resistor is used to control
> Vout from the unit.  I assume that the manufacturer of the UEGO has
> selected an appropriate value resistor for each individual sensor.  But
how
> can a user check this?  For example to confirm that a measured AFR, say
> 13.0 is exactly 13.0?  Has anyone who has built one of these units
> confirmed proper AFR readings?
> Neil

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