Barometric Measure Units (GX50/60 Only)This function allows you to choose the units ofmeasure for the Local Altimeter Settings. The choicesare inches (“) or millibars (MB).1. In the System Information section of the Systemfunction, turn the LARGE knob to reach the BaroMeasure page.Baro MeasureusgUS Gallons2. Press SEL to enable selection. Turn the SMALL knobto choose the desired units and then press ENTER.Test DisplayThe Test Display page allows you to test the displaysegments. In the System Information section of theSystem function, turn the LARGE knob to reach theTest Display page. Press ENTER to start the test.Pressing any key or turning any knob will cancel thetest.To Test DisplayPress ENTERDisplay BrightnessThe display brightness of your Apollo GX isautomatically controlled by a photocell and set toprovide good viewing for ambient light conditions. Attimes you may want to manually control the displaybrightness. Default is the automatic mode.1. In the System Information section of the Systemfunction, turn the LARGE knob to reach the DisplayBrightness page. Press SEL to start selection.DisplayBrightnessDefault7-14System FunctionsSELENTERENTERSEL
