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SECTION 2
FLIGHT INSTRUMENTS
2.7
BAROMETRIC ALTITUDE MINIMUMS
The desired barometric altitude minimums can be set in
the Timer/References Window. The altitude ranges from 0
to 16,000 feet in 10-foot increments. The minimums are
reset anytime the power is cycled.
Figure 2-16 Barometric Minimum Descent Altitude Settings
Set the barometric altitude minimums:
1) Press the TMR/REF Softkey.
2) Turn the large FMS Knob to highlight the
'Minimums' field (Figure 2-16).
3) Turn the small FMS Knob to select BARO. OFF is
selected by default. Press the ENT Key or turn the
large FMS Knob to highlight the next field.
4) Use the small FMS Knob to enter the desired
altitude (from zero to 16,000 feet).
5) To remove the window, press the CLR Key or the
TMR/REF Softkey.
The desired barometric minimum descent altitude
(MDA, or Decision Height, DH) can be set in the Timer/
References Window.
Visual annunciations alert the pilot when approaching
the MDA:
• When the aircraft altitude descends to within 2500
feet of the MDA setting, the Barometric Minimum
Box appears with the altitude in light blue text.
The bug appears on the tape in light blue once in
range.
• When the aircraft descends through 100 feet of the
MDA, the bug and text turn white.
• Once the aircraft descends past the MDA, the bug
and text turn yellow and the aural alert, "Minimums
Minimums", is generated.
2-8
Garmin G1000 Cockpit Reference Guide for the Columbia 350/400
Alerting is inhibited while the aircraft is on the ground.
If the aircraft climbs after having reached the MDA, once it
reaches 50 feet above the MDA, alerting is disabled.
Within 2500 ft
Barometric
Minimum Bug
Barometric
Minimum Box
Altitude Reached
Figure 2-17 Barometric Minimum Descent Altitude
Alerting Visual Annunciations
Within 100 ft
190-00567-01 Rev. A
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