Garmin G1000 Cockpit Reference Guide for the Columbia 350/400 190-00567-01 Rev. ASECTION 3 – ENGINEINDICATION SYSTEM (EIS)3-23.1 EIS DISPLAYSelecting the SYSTEM Softkey on the MFD acessesthe Engine Indication System (EIS) Display. For allinstruments, green indicates the acceptable operatingrange; yellow and red indicate caution and warning,respectively.Oxygen System (Optional)Selecting the OXYGEN Softkey on the MFD turns theoxygen system on or off. If no oxygen system is installed,the oxygen gauges will be blank.• Oxygen Quantity (OXY QTY PSI) – Amount ofremaining oxygen in terms of pressure.• Oxygen Outlet Pressure (OXY OUTLET PSI)– Oxygen outlet pressure in pounds per square inch(psi)Figure 3-2 EIS Display (Columbia 400 shown)TachometerManifoldPressureGaugeOilTemperatureGaugeOilPressureGaugeOxygenQuantityGaugeFuel FlowGaugeFuelCalculationsGroupEngineTemperatureGroupOxygen OutletPressure GaugeTrim GroupElectricalGroupTrimCorrect takeoff aileron and elevator trim positions areindicated by the green boxes.Carbon Monoxide DetectionIf carbon monoxide in the cabin becomes too high(above 50 ppm), a flashing annunciation will be displayedin the lower left of the EIS System Display as shown inFigure 3-2. The current amount of CO is displayed inparts-per-million. A warning annunciation will also bedisplayed on the PFD in the Annunciations Window andan aural warning will be generated.