K0200 Issue No. 1
16 DPI 740 User Manual
Altitude Measurement (Figure 3-5)
This mode measures the vertical distance between a level and
a specific pressure datum. Measurements of altitude are
calculated from local pressure according to ICAO standard
atmosphere tables defined in BS 2G 199: 1984. The default
pressure datum is the ISA, 1013.25 mbar. A user defined
pressure datum can be entered by the SET_ALT menu. This
datum can be a specified pressure datum known or required
by the user such as true sea level pressure or airfield ground
pressure at the time of measurement.
Figure 3-5 Altitude measurement
units of altitude -
press F2 to step
between
feet and metres
pressing F1 steps to
PROCESS and SET ALT menu
datum
pressure
used to
calculate altitude
(default value 1013.25 mbar)
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