Performing The Calibration Procedure - MGL Avionics Stratomaster Smart Single Manual

The calibration procedure should be carried out with your aircraft in flight attitude. This means you
need to lift the tail if you have a tail-dragger or lift the nose wheel if you have a weightshift trike.
You start the calibration procedure with an empty tank.
Your first determination should be how much reserve fuel you should carry. Reserve fuel would be
fuel that is not taken into account by the fuel level sender. We recommend at least 10% of your
fuel tank capacity as reserve fuel, preferably even more.
To illustrate the calibration procedure, let us assume we have a weightshift trike with a tank
capacity of 50 liters without reserve.
We decide to use a five-liter reserve, leaving us with a usable fuel capacity of 45 liters.
Our first step is now to enter this capacity into the instrument. Use the "+" and "-" keys to move the
highlight to the "Tank:" item. Then press the Menu key. Now a new screen is shown and you can
use the "+" and "–" keys to set the entry to read 45 liters. Press the Menu key again when you are
done.
Our next step would be to raise the nose gear of the trike to flight position. An upturned bucket or
similar item is normally all that is required.
We now start with the empty tank. Add five liters of fuel (our reserve quantity) using a suitable
measure. Make sure the measure is suitably accurate.
This is now the "level sender reading at 0 Lt" position. Move the highlight to this position and wait
until the sender reading has stabilized (You will see the sender reading at the top line). This could
take up to a minute so have patience.
ENSURE THAT THE FLOAT IS NOT SUBMERGED AND IS FLOATING ON TOP OF THE FUEL
LEVEL.
Should this number not react to changes of your level sender position, then you have a problem.
Please check your wiring according to the installation section of this manual.
You should expect the number to change in the region of at least 20 to 60 counts per calibration
position. If the number does not change with fuel level or only changes a very small amount –
check your installation. Something is not right !!!
If you see the number changing then everything is well. Once it has stabilized and the highlight is
on the 0 Lt position, press the "Menu" key to transfer the reading from the sender to the calibration
point.
Now you are ready for the next step. Add the required amount of fuel to get to the next level (In
our case 9 Lt – this is 20% tank capacity). Once done, wait for the reading to stabilize and press
"Menu" again after you have moved the highlight to the "9 Lt" position.
Proceed in a similar manner until you have reached the last calibration position at 100% tank
capacity.
You are done !
If you press "+" past the last calibration point then the unit will display:
If you press "Menu" at this point then the calibration function will exit
and any changes you have done are written to permanent memory in
the instrument. You can repeat this calibration many times so do not
worry if you do not get it right the first time.