Just finished hooking up the Zeitronix WBO2 data logger and there is a graph for Lamba but I haven't a clue what it means! I've conducted some searches but can't find any info. Any Info would be great.
On another subject how do I post pics. I feel like a poser and need to be verified.
Thanks,
Choray

 

Lambda just refers to what fraction of stoichiometric your afr is at. A lambda of 1 means you are stoich. A lambda of .8 translates to 11.76:1 afr, a lambda of 1.2 translates to 17.64:1 afr, and so on. The usefulness of using lambda is that it will work with any fuel, whereas if you use afr you have to calibrate your meter based on what the stoichiometric ratio of the fuel is. This is usually not a problem with us since most of us here in this forum stick with gasoline, and using afr instead of lambda is more convenient because of familiarity.

 

good info stephen

 

Thanks Stephen, I knew Lambda was a derivative of AF ratio but I did not know how it related.

 

Aha! Thanks Stephen

 

so its like metric ?