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Chapter 12: Live Data Viewing
Display Current AFR/Lambda
If a Lambda meter (Air Fuel Ratio- AFR) is connected to an input channel then it can be
displayed in this indication Window (‘Utilities’ menu) for high visibility during tuning.
Note: Window is found in the menu “Utilities”, not these Gauges selections.
The width of the acceptable operating band is set in the “Window” control field. The centre
location of the operating band is adjusted with the ‘slider’ control (shown set at 1 in the images
below).
It is important to set the input channel selection button that has the Lambda meter connected (usually channel 1 is used)
Note: Both Lambda and AFR units are used; therefore the ’stoichiometric’ point of the fuel must be known (so
DYNertia3 can calculate AFR from Lambda and visa versa). Choose the fuel from the drop down list or add your own
custom ratio by pressing the “C” button (this can also be selected under menu choice ‘Setup/Software/Lambda AFR’).
DYNertia3 will pick up if you have calibrated your input channel in units of Lambda or AFR by checking if the words
appear in the selected sensor name under menu option ‘Setup/Sensor Configuration’ “ Lambda “ or “ AFR “ are the
terms it searches for (note the space either side). Knowing this allows DYNertia3 to apply the appropriate calculation to
give you both units of Lambda and AFR regardless of your sensor configuration.
If the Lambda reading goes outside the acceptable ‘Set Point’ range then the gauge surroundings change to a very
noticeable red colour to alert that a problem exists.
Tip- Filtering (smoothing) values applied to the data can be altered set in the menu ‘Setup/Sensor Calibration’.
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