C
IRRUS
D
ESIGN
S
ECTION
7: A
IRPLANE
AND
S
YSTEMS
SR20
F
UEL
S
YSTEM
P/N 11934-005
7-43
Target Fuel Flow is a cyan pointer placed on the fuel gauge to aid in cruise
power leaning. The cyan pointer becomes available on the fuel flow gauge
at engine power settings below 75%.
• N
OTE
•
Target Fuel Flow is removed from gauge at low power settings
(intended for cruise, not descent leaning guidance).
Fuel Totalizer and Calculated Information
Fuel totalizer calculations are located in the lower right section of the
ENGINE page and are separate and independent of the fuel quantity gauge
and float sensor system. The fuel totalizer monitors fuel flow and calculates
fuel-to-destination, fuel used, fuel remaining, time remaining, fuel range,
and nautical miles per gallon. Upon system startup, the fuel totalizer initial
fuel screen appears and prompts the user to enter the total fuel on board at
start. The option to enter the number of gallons added since last fuel fill and
the ability to set fuel to “Full” or to “Tabs” buttons is also available.
Fuel System Annunciations
Fuel system health, caution, and warning messages are displayed in
color-coded text in the Crew Alerting System (CAS) window located to the
right of the Altimeter and Vertical Speed Indicator. In combination with a
CAS alert, the affected fuel parameter displayed on the ENGINE page
changes to the corresponding color of CAS alert and the annunciation
system issues an audio alert.
•
A white Advisory message is generated when either fuel tank goes
below 8.2 gallons.
•
A amber Caution message is generated when both fuel tanks go below
8.2 gallons.
•
A red Warning message is generated when the fuel totalizer or sensed
fuel quantity (left plus right) is below 7 gallons.
• N
OTE
•
For specific pilot actions in response to Fuel System Annuncia-
tions, refer to Section 3 - Emergency Procedures,
, and Section 3A - Abnormal Procedures,
For additional information on Engine Instrument Markings and
Annunciations, refer to
.
For additional information on the System Annunciations And
Alerts, refer to the
Pers Integrated Avionics System
description in this section.
Reissue A