Vega ALT-5 Operating Manual page 5

Vega ALT-5 Operating Manual Page 5
4.2 ALT Setup (Altitude Setup)
Style:
Select the altitude display screen. Options include "TAPE" or "CLASSIC".
Altitude Unit:
Select if you want the altitude displayed in ft (feet) or m (meters).
Pressure Unit:
Select if you want the local pressure displayed in mb (millibars) or "Hg (inches of mercury).
Resolution:
Select the resolution of the altitude value, a selection of 1,10,25 or 100 ft or m can be selected.
ALT Calibrate
This section allows for the calibration and fine tweaking of the altitude value. Before you begin, ensure that your calibrated
and certified reference is set to the local pressure of 1013.25mB (29.92"Hg). The ALT-5 altitude value in ft (referenced to
1013.25mB (29.92"Hg)) is displayed in the top right hand corner of the display. All calibration must be done in feet.
The combined adjustments cater for both the altitude sensors offset and gain. Only start the calibration sequence once
the instrument has been running for a minimum of 10 minutes.
Start the altitude calibration with the "CAL FACTOR" and make sure the "CAL GAIN" value is set to 100.00%.