Cessna 172S Nav III User Manual

SECTION 7
AIRPLANE AND SYSTEMS DESCRIPTION
CESSNA
MODEL 172S NAV
III
ELECTRICAL SYSTEM (Continued)
G1000 ANNUNCIATOR PANEL
All system alerts, cautions and warnings are shown on the right side
of the PFD screen adjacent to the vertical speed indicator. The
following annunciations are supported:
I
OIL PRESSURE
LOW
FUEL L
LOW VOLTS
HIGH VOLTS
STBY
BAT
LOW VACUUM
LOW
FUEL R
PITCH TRIM
CO LVL HIGH
(if installed)
Refer to the Garmin
G1000 Cockpit Reference Guide Appendix A
for more information
on system annunciations.
MASTER SWITCH
The MASTER switch is a two-pole, rocker-type switch. The BAT
side of the switch controls the main battery electrical power to the
airplane. The AL T side of the switch controls the alternator system.
In normal operation, both sides of the switch (AL T and BAT) are ON
simultaneously; however, the BAT side of the switch may be
selected separately as necessary. The AL T side of the switch can
not be set to
ON without the BAT side of the switch also being set
to
ON.
If the alternator system fails, the MASTER switch may be set to the
OFF position to preserve Main Battery capacity for later in the flight.
With the
MASTER switch OFF and the STBY BATT switch in the
ARM position, the standby battery
will power the Essential Bus for a
limited time. Time remaining may be estimated by monitoring
Essential Bus Voltage. At
20 Volts, the standby battery has little or
no capacity remaining.
(Continued Next Page)
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U.S.
172SPHAUS-03

Cessna 172S Nav III Specifications

General

Brand	Cessna
Model	172S Nav III
Category	Aircrafts
Language	English