EFIS Operation
5-2 EFIS-D10A Pilot’s User Guide
The barometer can be set in units of inches of mercury (inHg) or millibars (mb). To change the units, simply press
buttons 1 or 2, corresponding to the UNITS label. To reset the barometer to standard day pressure (29.92 inHg), press
button 3, corresponding to 29.92 (inHg) or 1013 (mb).
With no menus displayed, rotating the HS34’s VALUE knob adjusts the barometer. Holding the value knob for
more than 1 second sets the barometer to 29.92 inHg.
The current indicated altitude is preserved across a power cycle. When powered down, the instrument saves the indicated
altitude. When it is powered up again, the instrument automatically adjusts the barometer setting by exactly enough to
preserve that saved value. This is not a replacement for setting the barometer by the pilot before takeoff; it makes the
barometer very close to the correct value, minimizing the amount of adjustment needed. To turn the Kollsman window
auto-set on or off, enter the EFIS > SETUP > BARO menu and set the ADJUST AT BOOT option to ON or OFF.
BUGS – Setting Bug Markers
You can set a marker – or “bug”– to display on any or all of the
three tapes. To do this, enter the EFIS > BUGS menu, and choose
the type of bug to configure: HDG (heading), IAS (Indicated
Airspeed), or ALT (altitude). Note that if a bug is not currently displayed, changing its set value causes it to display on
the relevant tape.
HEADING
In the BUGS menu, press HDG. Press the TOGGLE button to turn on
or off the heading bug display on the horizontal heading tape. Note
that this affects the display of the heading bug on the HSI page as
well.
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