Engine Instruments; Tachometer (Rpm) - Cessna SKYCATCHER 162 Pilot's Operating Handbook And Flight Training Supplement

CESSNA SECTION 2
MODEL 162 AIRPLANE AND SYSTEM DESCRIPTION
GARMIN G300
ENGINE
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ENGINE INSTRUMENTS

The G300 Engine Indication System (EIS) provides the pilot graphical
indicators and numerical values for Tachometer (RPM), Oil Pressure
(OIL PSI), Oil Temperature (OIL ºF), Carburetor Temperature (CARB
ºF), Battery Current (AMPS), and Elevator Trim Position (TRIM) along
the top of the appropriate G300 Display. Additional indicators and
numerical values for Exhaust Gas Temperature (EGT ºF), Electrical
Bus Voltage (VOLTS), and Engine Hours (ENG HRS) are displayed on
the G300 ENGINE Page when selected. In normal operation, EIS
information is displayed on the Primary Flight Display (PFD) in the
single display installation and on the optional Multifunction Display
(MFD) in the dual display configuration (if installed). During engine start
or when the AVN MASTER is OFF, the EIS is only displayed on the
PFD even if the optional MFD is installed.

TACHOMETER (RPM)

A speed sensor, mounted on the right magneto, provides a digital
signal to the ADAHRS which processes and outputs the RPM data to
the EIS.
Engine speed (RPM) is shown by the tachometer indicator found on all
EIS pages. The tachometer indicator uses a circular scale with moving
pointer and a digital value. The pointer moves through a range from 0
to 3000 RPM. The numerical RPM value is displayed in increments of
10 RPM in white numerals below the pointer.
The normal engine speed operating limit (top of green arc) is 2750
RPM. When engine speed is more than 2750 RPM, the pointer, digital
value, and label (RPM) turn red to show engine speed is more than the
limit. The digital value and label (RPM) will flash. A red-X is displayed
when the instrument is invalid or out of the data range.
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162PHUS-00 2-9
U.S.