190-00726-00 Rev. J
Garmin G900X Pilot’s Guide
115
ENGINE INDICATION SYSTEM
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
PISTON LEAN DISPLAY (REVERSIONARY MODE)
The EIS Lean Display provides information and a user interface to perform engine leaning while in
reversionary mode. Exhaust gas (EGT) and head (CHT) temperatures for each cylinder are displayed in bar
graph form with a readout for the temperature of the selected cylinder shown below each graph. Turbine inlet
temperature (TIT) is also shown for turbocharged aircraft.
Accessing the EIS Lean Display:
1)
Press the
ENGINE
Softkey.
2)
Press the
LEAN
Softkey.
3)
To return to the default Engine Display, press the
ENGINE
or
BACK
Softkey.
By default, the cylinder with the hottest temperature is selected (number highlighted in light blue) when
the
LEAN
Softkey is selected. Bars for cylinders with temperatures in the normal range are shown in white.
On the CHT Bar Graph, a warning condition for a cylinder is indicated in red.
Since only one cylinder’s EGT and CHT are displayed at a time, this information can be cycled through for
each cylinder pressing the
CYL SLCT
Softkey; the selected cylinder’s number is highlighted in light blue on
the bar graphs. This softkey is disabled when Leaning Assist Mode is selected or when a cylinder experiences
a warning (red) condition; the softkey remains disabled until the temperature returns to normal.
Monitoring the desired cylinder’s temperatures:
From the Lean Display, press the
CYL SLCT
Softkey to cycle through each cylinder and view its temperature
information. The selected cylinder number is highlighted in light blue.
While in Reversionary Mode, the leaning assist function is available from the Lean Display to assist in the
leaning process.
Accessing Leaning Assist Mode:
1)
Press the
ENGINE
Softkey.
2)
Press the
LEAN
Softkey.
3)
Press the
ASSIST
Softkey to identify the peak.
4)
Press the
ASSIST
Softkey again to exit Leaning Assist Mode.
1
Engine Manifold Pressure
Gauge (MAN IN HG)
Displays manifold pressure in inches of Mercury (in Hg) to indicate engine
power
2
Tachometer (RPM)
Displays propeller speed in revolutions per minute (rpm)
3
Fuel Flow
(FFLOW GPH)
Displays fuel flow in gallons per hour (gph)
4
Turbo Inlet Temperature
Indicator (TIT °F)
TSIO-550-E, TIO-540-
AE2A and TEO-540 iE2
(FADEC) only
TSIO-550-E and TIO-540-AE2A only:
Displays the temperature for the right
(R) and left (L) turbo inlets in °F; the left readout corresponds to the “L”
indication, and the right readout to the “R” indication.
TEO-540 iE2 only:
A single turbo inlet temperature is displayed in °F