Garmin G1000 NXi Pilot's Manual page 64

FLIGHT INSTRUMENTS
The barometric pressure setting is displayed below the Altimeter in inches of mercury (in Hg) or hectopascals
(hPa) when metric units are selected. Adjusting the altimeter barometric pressure setting creates discontinuities
in VNV vertical deviation, moving the descent path. For large adjustments, it may take several minutes for the
aircraft to re-establish on the descent patch. If the change is made while nearing a waypoint with a VNV Target
Altitude, the aircraft may not re-establish on the descent path in time to meet the vertical constraint.
Do not use a QFE altimeter setting with this system. System functions will not operate properly
WARNING:
with a QFE altimeter setting. Use only a QHN altimeter setting for the height above mean sea level, or the
standard pressure setting, as applicable.
Selecting the altimeter barometric pressure setting:
Turn the BARO Knob to select the desired setting.
Selecting standard barometric pressure (29.92 in Hg):
1) Press the PFD Opt Softkey to display the second-level softkeys.
2) Press the STD Baro Softkey.
3) Press the Back Softkey to return to the top-level softkeys.
Changing altimeter barometric pressure setting units:
1) Press the PFD Opt Softkey to display the second-level softkeys.
2) Press the ALT Units Softkey.
3) Press the IN Softkey to display the barometric pressure setting in inches of mercury (in Hg).
Or :
Pr ess the HPA Softkey to display the barometric pressure setting in hectopascals (hPa).
4) Press the Back Softkey twice to return to the top-level softkeys.
The Baro Transition Alerts flash the barometric pressure setting to remind the pilot to change the barometric
pressure setting to or from standard. Two alerts are available. The altitude Baro Transition Alert occurs when
climbing through the transition altitude beginning at 200 feet below this altitude. The flight level Baro Transition
Alert occurs when descending through the transition flight level beginning at 200 feet above this flight level.
The barometric pressure setting stops flashing after the pilot changes the barometric pressure setting. The pilot
can enable/disable either Baro Transition Alerts, and choose the altitude or flight level used to trigger the alerts.
Setting the Baro Transition Alerts:
1) Use the FMS Knob to select the Aux - System Setup 1 Page on the MFD.
2) Press the FMS Knob to activate the cursor.
50
Figure 2-10 Standard Barometric Setting
Garmin G1000 NXi Pilot's Guide for the Cessna Nav III
190-02177-00 Rev. A