Brauniger ALPHAMFD, Operating And Installation Manual

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4.1.4 Vne-Alarm
Vne-Alarm: In Set-Mode 7 the Velocity never to exceed is set in the same way as
described above,( if not blocked by the manufacturer) If you exceed this maximum
allowable speed an acoustic and visible (flashing speed pointer) is activated.
Note: Neither the Stall- nor the Vne - Alarm can be switched off.
WARNING ! If the Indicated Air Speed is faster than 50 km/h , the
ALPHA ALPHA ALPHA ALPHA MFD cannot be switched off! This prevents the pilot from accidentally
switching off the ALPHA ALPHA ALPHA ALPHA MFD during flight.
4.2 Altimeter and Air Pressure
We recommend setting the correct QNH prior to every flight. This is easily done by just
pressing the ARROW up / down keys.
4.2.1 Altitude MSL (QNH)
Usually the altimeter is set to altitude above mean
sea level MSL. If the >
m/ft/QNH/AGM < key is
pressed once, the display switches over from meter
to feet. If the same key is pressed again, the
corresponding QNH is displayed in hPa (or InHg).
4.2.2 Altitude above GND / AGL (QFE)
It is also possible to set the altimeter to zero while on the ground. This way the
altitude shows Above Ground Level (AGL or GND). When switching over to air pressure
while AGL is set, the
ALPHA MFD
automatically calculates the corresponding QFE. On
many airports the QNH is given by ATC prior to take-off. You can also set the QNH by
pressing the >ARROW< keys and the
ALPHA
MFD
automatically calculates the
corresponding altitude above MSL. (Kollsman-Window)
4.2.3 Flight Level (FL, QNE)
In some air spaces pilots are required to fly by flight levels. All aircraft set their
altimeter to the ICAO standard air pressure of 1013,2 hPa.
The
ALPHA
ALPHA ALPHA
ALPHA
MFD
has a special function to set this very easily. By pressing the
>ARROW UP< and >ARROW DOWN< keys simultaneously, the altimeter is set very
quickly to 1013,2 hPa (QNE). Now the altitude is shown in flight level. Changing the
altitude to flight level is indicated by "QNE" in the display.
If you want to revert to altitude MSL, just get the new actual QNH from the nearest air
field and adjust the altimeter accordingly using the >ARROW< keys.
4.3 Altitude Guidance Mode (AGM)
The Altitude Guidance Mode (AGM) helps pilots to maintain a chosen altitude with the
help of an acoustic alarm. If the chosen altitude is exceeded, either too high or too