MGL Avionics Stratomaster Ultra “L” Owner’s manual
Page 47
Fuel low alarm
Set the minimum fuel level below which the unit will generate an alarm.
If you select a value of zero, the fuel level alarm is off.
In order to use the fuel level alarm you must have either a fuel tank level sender installed or
you must use a fuel flow sender (in which case the fuel level can be calculated from a starting
value).
Please note that we recommend that you calibrate your system in such a way that you have
reserve fuel at all times. It is not considered good airmanship to fly your tank empty!
Make allowance that any type of fuel flow or fuel level sensor may malfunction for whatever
reason. Should you find unusual, unexpected fuel economy reported by your system, you
most likely are getting incorrect readings. Always backup your fuel management with manual
inspections and plan your flights using known fuel burn rates of your power plant.
Back light
The back light can be used in one of three ways. Permanently on. Permanently off or in
“Auto mode”. In auto mode the back light will switch on if the engine is running or if any key
on the instrument is pressed. The back light will automatically switch off is there is the engine
is not running or no keys have been pressed for a period of ten minutes.
ASI scale
Here you select what scale to use for your analog ASI (airspeed) indicator. You have a
choice of 100,200,300 or 400 units of measure. Units of measure may be miles per hour,
kilometers per hour or knots.
Please note that standard instruments are made for a speed range up to 200 miles per hour
(approximately 320 km/h).
RPM scale
Select the maximum RPM for the analog RPM indicator here. You can choose from
3000,4000,5000,6000,7000,8000 or 9000 RPM.
For example, a typical Rotax two-stroke would need a setting of 7000 RPM. A Rotax four
stroke would need a setting of 6000 while most other four stroke engines may need a setting
of 4000 or 5000.
Fuel flow scale
This setting is not currently used with this instrument.
