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5.7 Display of Temperatures
The temperature display fields are scrolled by pressing the >
TEMP
< key. Pressing
repeatedly switches to the next temperature. The displayed pair of temperatures is
designated by the Icons >CHT<, >EGT<, or >Water/Oil Temp<.
EGT 1
CHT 1
Water
EGT 1 etc.
EGT 2
CHT 2
Oil
EGT 2 etc.
In case the EGT Scroll Mode is activated in SET-
Mode 28, the top field shows the actual temperatures and the lower field shows the
cylinder designation, e.g. CL1, CL2, etc. Water Temperature is designated by H2O and
Oil is designated by OIL.
Because the
ALPHA
ALPHA
ALPHA
ALPHA
MFD
constantly monitors ALL engine temperatures, it is not
necessary to display all temperatures on the display. This would clutter the display and
make it very hard to read (information overload!). The pilot can choose the
temperature pair which interests him most.
All other temperatures are still
monitored even when not displayed
. If a temperature value is exceeded according
to the programmed max values, an alarm tone is sounded through the Intercom the
red alarm light is flashing and the excessive value is displayed together with its
designator (Icon) so it can easily be identified.
Attention:
To stop the annoying sound and flash light and to come back from an
alarm temperature to see another one, for example EGT to CHT, first press the
ON/OFF
button surpressing the audio/video alarm, than press the EGT/CHT button!
Note:
The instrument is not switched off during flight when pressing the >
ON/OFF
<
key!
5.8 Oil Pressure and Low Oil Pressure Warning
The
ALPHA
ALPHA
ALPHA
ALPHA
MFD
can monitor oil pressure in two different ways, depending on the
type of the oil pressure sender being used: You
have
to set the type of oil pressure
sender in SET-Mode 29.
SET-Mode Options:
DIGI = Oil pressure switch (On/Off)
ANA = Analogue oil pressure sender (e.g. Rotax 912)
WARNING!
If the
INCORRECT
type of oil pressure sender is set, the oil
pressure is
NOT MONITORED
! There will be no warning if something goes
wrong with the oil pressure!
5.8.1 Oil Pressure Switch
The oil pressure switch does not monitor the exact oil pressure, but indicates when the
permissible oil pressure drops below a certain value. This value is built into the switch
and cannot be set in the
ALPHA
ALPHA
ALPHA
ALPHA
MFD
.
