MGL Avionics Stratomaster Ultra Horizon XL Owner’s manual
Page 73
Getting started with the Ultra
So, you have installed your Stratomaster Ultra. What now ?
Here is a short list of things you should do to make the instrument work the way you want it.
1) Verify that the RDAC is connected and working. The red LED on the RDAC should be
flashing. You should see EGT and CHT readings giving approximate ambient
temperatures (if the engine has not been running).
2) Altitude OK ? Good. Adjust the QNH using the + and – keys so you get your fields correct
elevation.
3) Pilot tube connected and pointing the direction you think your aircraft is going to fly ?
Blow lightly into the pitot tube and verify that you get an airspeed reading. Get somebody
to do it for you if required.
4) Now go to the “Mode and units setup menu” (You’ll find it in the “Device setup menu”).
Select your required units of measure. Also, at this time select three important items
listed here:
How do you want to log flights ? Set to automatic or manual detect of flight start and end.
5) Have you got your fuel level sender(s) installed and connected ? Perhaps now is the time
to calibrate your sender(s) as detailed in the relevant chapter in this manual.
6) Start the engine. Do you get correct RPM indication and is the RPM stable over the full
range ? Adjust Rev counter calibration if required.
7) Select your engine type using the “Engine quick type select”, perhaps select an engine
closest to what you have and then modify the entries in the “Engine detail setup” so you
have the temperature ranges and alarm levels the way your need them.
8) Select from the choices available how you want to use the twelve TC channels. You do
this in the “Engine detail setup menu”.
9) Connect your SP-1, SP-2 or SP-3 sensor package. Verify that your AHRS indicator is
functional. You will have to perform compass swing (deviation compensation) and setup
various factors for your horizon to perform as expected. Please view the documentation
that comes with your sensor package for the required procedures.
Finally, verify that all your connected probes and senders operate the way they should. Are all the
readings correct and as expected ?
Is all wiring secure ? No loose cables ? Have you made sure that the RDAC unit has a nice and
SHORT
electrical connection between the ground terminal and the engine block ? This
connection must not break due to engine vibrations.
Everything done and working ?
Congratulations – you have one of the finest instruments on Earth in your aircraft.
Best wishes from the team at MGL Avionics.
