Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 320

CESSNA 800 ALTITUDE PILOT'S OPERATING HANDBOOK
ENCODING/ ALERTING/PRESELECT SUPPPLEMENT
4
1.
ALTITUDE SELECTOR AND DISPLAY - Minilever switches (3) select desired
altitude between 100 and 39,900 feet in 100-foot increments. Digital readout
displays selected altitude. Black/white flag in first window, when visible,
indicates selected altitude is less than 10,000 feet.
2. ALTITUDE CAPTURE CONTROL AND INDICATORS - Selector switch and
two-lamp indicator which operate as follows:
ARM Pushbutton Switch - Arms altitude capture function of Alerter, pro-
vided Integrated Flight Control System is turned on and not already
engaged in a vertical mode (altitude hold or glide slope coupled) , and
altitude selector switches are set to desired altitude.
ARMD AMBER LAMP - Lights when ARM pushbutton switch i s pushed in to
indicate that altitude capture function of flight director is engaged;
remains lighted until altitude is captured.
CPLD Green Lamp - Lights when airplane reaches selected altitude and
Integrated Flight Control System altitude hold mode is automatically
engaged.
3. ALTITUDE ALERT INDICATOR - Three-lamp indicator which operates within
a preestablished alert range on either side of the selected altitude, as follows:
ALERT Green Lamp - Lights when airplane altitude is within about 300 feet
of the selected altitude.
HI ALERT Amber Lamp - Lights when airplane altitude is about 1000 feet
above the selected alert altitude during descent or when deviating by
about 300 feet above alert altitude after reaching altitude.
LO ALERT Amber Lamp - Lights when airplane altitude is about 1000 feet
below the selected alert altitude during climb or when deviating by
about 300 feet below alert altitude after reaching altitude.
NOTE
A one-second aural tone is heard when the airplane enters
either amber band from above or below the altitude alert
r ange, or departs from the green band.
Figure 2. Cessna 800 Altitude Alerter Indicator (Type AA-801A)
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