Cirrus SR22 Pilot Operating Handbook page 355

Cirrus Design
SR22
4. Press DTA again to accept altitude entry, the ENT annunciator will
go out and the SEL annunciator will stop flashing and illuminate
steady indicating that the system is in the 'operate' mode.
When the system is in the 'operate' mode, pressing the ALT
button will cause the system to extinguish the SEL
annunciator and display the baro corrected encoded altitude.
Pressing the ALT button again will return the display to the
selected altitude and the SEL annunciator will come on again.
5. Press altitude selector VS button and use altitude selector knob to
input the desired vertical speed in 100 FPM increments. Turn the
knob clockwise to increase vertical speed and CCW to decrease
vertical speed. Positive (+) vertical speed indicates climb and
negative (-) vertical speeds indicates descent. Any vertical speed
from ±1 (100 FPM) to ±16 (1600 FPM) is selectable.
If an altitude is selected that requires an opposite vertical
speed from that selected, the system will automatically select
the correct sign ('+' for climb, '-'for descent) and a vertical
speed of 500 FPM.
6. After takeoff, press and hold the VS button and then press the ALT
button to engage the autopilot VS mode and arm the autopilot
altitude hold mode to capture and hold the selected altitude. If the
altitude selector ALR button is pressed, the system will provide
alarms at 1000 feet and 300 feet from the selected altitude. As the
airplane's altitude nears the selected altitude, the system
automatically reduces vertical speed command in 100 FPM
increments to provide a 300 FPM vertical speed at altitude
capture. The system will make a smooth transition to the selected
altitude and hold the selected altitude.
P/N 13772-108
Revision 06: 05-09-11
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Section 9
Supplements
13 of 24