CHAPTER 4 REFERENCE GUIDE
Page 4-18
091-00019-001 REV B
EFD1000 C3 Pro PFD Pilot’s Guide
4.2.3.3. Altitude Level-O and Deviation Alert
The Altitude (level-o ) Alert is ARMED and rendered on-screen as a yellow alert ag
next to the Selected Altitude value when the aircraft altitude transitions to within 200
feet or 15 seconds of reaching the selected altitude (Figure 4-23).
When an optional Sonalert tone generator device is installed, a one-second tone
also sounds. Once the current altitude is within ± 25 feet of the Selected Altitude, the
Altitude Alert extinguishes (Figure 4-24).
After reaching the Selected Altitude, if the aircraft’s current altitude diers from
the selected altitude by more than 200 feet, the yellow alert ag ashes. When an
optional Sonalert tone generator device is installed, a one-second tone also sounds.
NOTE
Rotating the knob quickly will change the altitude
value in larger increments.
Figure 4-22
Altitude Bug and Altitude Alerter Enabled
Figure 4-23
Altitude Alert
Figure 4-24
Altitude Alert Extinguishes at Selected Altitude
NOTE
Setting the Altitude Alerter provides visual and aural cues to help the pilot capture and
maintain target altitudes. When set to a new altitude, the Alerter will illuminate a yellow ag
adjacent to the target altitude display and sound a one-second tone; 15 seconds (or 200 feet)
before the aircraft will reach the target altitude (based on current rate of climb or descent).
The yellow ag will extinguish once the target is reached. Subsequently, if the aircraft deviates
more than 200 feet above or below the target altitude, the ag will again illuminate, and
another one-second tone will sound to alert the pilot to thedeviation.