Stack LAMBDA Guide D'installation page 7

Auto Dim Mode:
This product incorporates an Auto-Dimming feature that allows it to adjust automatically for varying lighting conditions. This is accomplished
with a sensor light embedded in the dial. You may enable or disable this feature depending upon your viewing preference. When Auto-Dim
mode is disabled, the product and LED's operate at maximum brightness regardless of atmospheric lighting conditions. The auto-dim mode is
set to "off" from the factory.
To view your current Auto-Dim setting:
• From Real-Time Mode, press MODE (-) to scroll until the display indicates "br" for brightness, then press SELECT (+) to display your
current Auto-Dim setting which will be indicated as either "ON" or "OFF" in the SSD.
If neither button is pressed for 3 seconds after the Auto-Dim Setting is displayed, the gauge will return to Real-Time Mode.
To Change your Auto-Dim setting:
• When the current Auto-Dim setting is displayed, press MODE (-) to toggle between "On" and "OFF".
• When your new Auto -Dim setting is displayed, press SELECT (+)
• The gauge will flash your new setting 8 times on the display and then the SSD
will display "S C" for Save/Cancel.
• To confirm your new auto dim settings, press MODE (-). This will save your Auto-Dim setting 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 Auto-Dim setting changes and
return the gauge to Real-Time mode.
Heater Control Mode:
All O2 sensors must be heated before an accurate signal is produced. Potential sensor damage can occur if the gauge begins to heat the sensor
before the engine is running due to condensation that forms on the sensor tip and in the exhaust. To accommodate this, an internal trigger within
the gauge will automatically begin heating the sensor when 13.5 volts or higher is seen on the Red wire ("Normal" operating mode). While the
gauge does not require 13.5 volts to operate (12 volts will suffice), this voltage is used to indicate to the gauge that the engine is running, as most
regulated charging systems will maintain 14 volts or higher. Once the gauge sees 13.5 volts the SSD will display "htg". When the sensor is heated,
the SSD will flash "rdy" and the gauge will begin reading air/fuel ratio in real-time.
In applications where a standard charging system is not used (vehicles without a regulated alternator, for example) there is an override available
that will allow sensor heating to occur without the gauge reading a 13.5 volt trigger. This can be accomplished while the seven-segment display
shows (---) (thereby overriding "Normal" operating mode) or set to trigger when 12 volts is applied on the Red wire
("On" operating mode).
To Override "Normal" Operating Mode:
• While displaying (---), press any button to begin the heater process.
To View your current Heater Operating Mode:
• From Real-Time Mode, press MODE (-) to scroll until the display indicates "Htr", then press SELECT (+) to display your current
Heater Operating Mode.
• If neither button is pressed for 3 seconds after the Heater Operating Mode is displayed, the gauge will return to Real-Time Mode.
To Switch Between Heater Operating Modes:
• When the current heater operating mode is displayed (either "Nor" or "On"), press SELECT (+) to choose the current setting or
MODE (-) to switch to the alternate setting. "nor" = 13.5V trigger is active, "on" = 13.5v trigger is turned off.
• After you have selected your new Heater Operating Mode, the SSD will display "S C" for Save/Cancel.
• To confirm your new Heater Operating Mode, press MODE (-). This will save your current Heater Operating Mode and return the
gauge to Real-Time mode.
• To cancel the changes and return to your previous Heater Operating Mode, press SELECT (+). This will cancel the Heater
Operating Mode change and return the gauge to Real-Time mode.
NOTE: Even with 13.5v trigger deactivated gauge will still show "htg" after every power up while the sensor is heating.
Response Setting Mode:
The response setting allows you to choose how quickly the SSD and BGD will change with varying AFR. FAST response is a high speed dis-
play update rate that allows you to see AFR changes as fast as they are happening, but this may make it difficult to read. SLOW response is a
display update rate that is easier to read, and still fast enough to get useful information.
To view your current Response setting:
• From Real-Time Mode, press MODE (-) to scroll until the display indicates "rsp" for response, then press SELECT (+) to display your
current Response setting which will be indicated as either FSt" or "Slo" in the SSD.
If neither button is pressed for 3 seconds after the Response Setting is displayed, the gauge will return to Real-Time Mode.
To Change your Response setting:
• When the current Response setting is displayed, press MODE (-) to toggle between "FSt" or "Slo".
• When your new Auto -Dim setting is displayed, press SELECT (+)
• The gauge will flash your new setting 8 times on the display and then the SSD
will display "S C" for Save/Cancel.
• To confirm your new auto dim settings, press MODE (-). This will save your Response setting changes and return.
• To cancel the changes and return to your previous set point, press SELECT (+). This will cancel the Response setting changes and
return the gauge to Real-Time mode.