Stack LAMBDA Guide D'installation page 4

Stoichiometric AFR Setting Mode:
The Stoichiometric AFR setting allows you to adjust the gauge scale for alternate fuel types such as Ethanol. As a default this product is set up
for petrol, with a stoichiometric AFR point of 14.7:1. If you would like to adjust this product for use on an alternate fuel type or would merely like
to adjust the "center" point of your BGD, please follow the instructions below.
To view your current Stoichiometric AFR setting:
• From Real-Time Mode, press MODE (-) to scroll until the display indicates "AFr", then press SELECT (+) to display your current
Stoichiometric set point.
To Change your Stoichiometric AFR setting:
• When the current Stoichiometric set point is displayed, press SELECT (+) to increase your Stoichiometric AFR setting, and MODE (-) to
decrease your Stoichiometric AFR setting.
• After you have selected your new Stoichiometric set point, the gauge will flash your new set point 8 times on the display and then the
SSD will display "S C" for Save/Cancel.
• To confirm your new Stoichiometric setting, press MODE (-). This will save your Stoichiometric set point changes
and return the gauge to Real-Time mode.
• To cancel the changes and return to your previous set point, press SELECT (+). This will cancel the Stoichiometric set point changes
and return the gauge to Real-Time mode.
Pro Control Setting Mode:
The Pro Control setting allows you to adjust the AFR or lambda value that causes the Pro Control output to turn on. The Pro Control wire
supplies ground when activated. It is recommended to use a relay switch to protect the gauge circuit from excessive current. If you would like
to adjust this value, please follow the instructions below.
To view your current Pro Control AFR setting:
• From Real-Time Mode, press MODE (-) to scroll until the display indicates "PrC", then press SELECT (+) to display your current
Pro Control set point.
To Change your Pro Control setting:
• When the current Pro Control set point is displayed, press SELECT (+) to increase your Pro Control setting, and MODE (-) to
decrease your Pro Control setting.
• After you have selected your new Pro Control set point, the gauge will flash your new set point 8 times on the display and then the
SSD will display "S C" for Save/Cancel.
• To confirm your new setting, press MODE (-). This will save your Pro Control set point changes
and return the gauge to Real-Time mode.
• To cancel the changes and return to your previous set point, press SELECT (+). This will cancel the Pro Control set point changes
and return the gauge to Real-Time mode.
Normally Normally
Closed Open
87A
30
+12v
Key on Power
If battery power is used, this circuit may backfeed causing
your gauge to stay on after power to gauge red wire is shut off.
87 85
86
Orange
Pro Control output
from Gauge