SV-EMS-220 Engine Monitoring System Installation and Configuration
10-16 SkyView HDX System Installation Manual - Revision E
If your electrical system / startup procedure applies power to SkyView before
applying power to the capacitive fuel level sensors, when first powered up,
SkyView will “sense” a fuel level of 0. If the FUEL LEVEL (CAPACITIVE
SLOWER RESPONSE) is selected, the fuel level will not display the actual
fuel level for as long as 7 minutes after applying power. You can either change
your startup procedure to apply power to the capacitive fuel level sensors
before applying power to SkyView, or select FUEL LEVEL (CAPACITIVE).
Note that default fuel level sensor type is resistive fuel level sensors. To use capacitive
fuel level sensors instead of resistive fuel level sensors requires changes to EMS settings
in a few places. First, change the pins used for fuel quantity via the SETUP MENU > EMS
SETUP > SENSOR INPUT MAPPING… menu. Then, in SETUP MENU > EMS SETUP
> SCREEN LAYOUT EDITOR, delete the default fuel quantity widgets from the 20%,
50%, and 100% layouts. Finally, add the new fuel level widget(s) that will be available for
the capacitive fuel level sensors.
After installation, prior to use, fuel level sensors must be calibrated before they
can display accurate fuel levels. Until you have performed a fuel level
calibration, the fuel level sensor widget will not display fuel levels, and will
display CAL ?
If you have installed capacitive fuel level sensors, and these sensors require
their own calibration, perform that calibration before performing the SkyView
fuel level calibration.
To perform a fuel level calibration, go to SETUP MENU > HARDWARE
CALIBRATION > EMS CALIBRATION > FUEL TANK xxx CALIBRATION >
(one (1) more right click) and follow the on-screen instructions to perform the
fuel level calibration. Generally, you will be prompted to perform up to ten (10)
fuel level pours of equal volume; the volume of each pour will be determined
by the size of the tank that you input.
For an accurate fuel level calibration, it is important to follow the on-screen
instructions exactly. For example, pushing the NEXT button before a fuel pour
is completed, or pushing it twice for one (1) fuel pour, will result in an
inaccurate calibration, and the fuel level calibration procedure will likely have
to be repeated.
Once a capacitive fuel level sensing system is calibrated for a certain type fuel,
only that fuel should be used, and the aircraft should be placarded for such.
For example, ethanol has a dielectric constant much different than 100LL or
Auto Fuel. If your capacitive fuel level sensor has been calibrated for 100LL,
and you then use Auto 10% Ethanol in the tanks, the fuel level indications
could be off significantly.
To Next Page
Loading...
