UltraGauge Screens
Settings
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UltraGauge
Blue
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User Manual www.ultra-gauge.com
operating, the voltage is the actual battery voltage which is typically less than 12.85V. If the battery voltage is
measured to be less than the “Bat Low Threshold” for “Power off retries” times, the ignition is considered to be
in the off position.
See the “Battery Low Threshold” setting for more detail.
If set to this mode, the Power on Detect Mode is internally forced to the Monitor Battery Voltage mode and the
Power on Detect Mode setting is ignored.
(This mode is not recommended, and should only be used when all other modes fail)
If Power Off (Engine-off/ignition-off) detection is failing, change the mode until UltraGauge can successfully sense
that the ignition is OFF. The Monitor RPM and Monitor Battery Voltage modes have the side effect that
UltraGauge will not wake and begin functioning unless the engine is running. In order to make configuration
changes without the need to start the engine, place the ignition in the RUN position and press the Blue Adapter
Button. This will cause the Adapter to power on.
For all modes, increasing “Power off Retries” will reduce the chances of false ignition off detection.
Bat Low Threshold
This setting is used in conjunction with the Monitor Battery Voltage “Power off Detect” mode. This setting is
ignored for other modes. When the engine is running, the battery voltage is increased by the alternator. When the
engine is not running, the measured voltage is just the battery and is lower. By default the Battery Low Threshold
is 12.85 volts. If UltraGauge detects that the voltage is less than the “Battery Low Threshold” for “Power off
retries” times, UltraGauge will enter its low power mode and all LEDs, with the exception of the Power LED, will
be turned off. For example, if “power off retries” is set to 5 and the “Battery Low Threshold” is set to 12.85V,
UltraGauge will enter its low power mode when a voltage less than 12.85 is sampled 5 consecutive times.
If, while in the Monitor Battery Voltage mode with the engine off, UltraGauge fails to enter low power mode,
increase the threshold until UltraGauge consistently enters low power mode. If, while configured to this mode,
UltraGauge enters low power mode while the engine is running, decrease the Bat Low Threshold and/or increase
the “Power off retries”.
Note: Opening the door while exiting the vehicle, such that the cabin lights come on is enough to cause a
significant drop in battery voltage. So even if the gauge does not immediately power off, the cabin lights alone
will cause a voltage drop and cause
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to power down. So avoid setting the threshold too high.
If the Voltage is set too low by mistake
, the Adapter will always immediately re-enter its Powered Down state.
While in this mode, pressing and holding the Adapter’s button will restore the Battery Low Threshold Value to the
default. Do not hold the button for longer than 4 seconds, otherwise the gauge may detect this as a Fuel Fill-up
event.
Power off retries
By default UltraGauge will power-down if the “Power off Detect” mode is satisfied for “power off retires”
consecutive times. This setting allows the number of “Power off Detect” mode attempts to be set from 2-255.
Normally a value of 5 is best and preferred. If UltraGauge at times enters low power mode and briefly turns off its
LEDs while the engine is running, increase the number of retries until the behavior stops. Alternatively consider the
other Power off detect modes.
A side effect of increasing this value is that UltraGauge will remain on for a longer period of time after the ignition
is switched to Off. However, the increase is minimal.
Changing this setting to a value greater than ~45 is not recommended for vehicles with KWP 2000 or 9141
protocols while configured to the Read OBDII Sensor “power off” detect mode. Any value is okay for the
remaining “Power off detect” modes.
