62
Setting absolute altitude
Calibration of sea level
pressure
Altitude can also be calculated
using the difference between
current pressure and pressure
at sea level. Normal pressure
at sea level is 1013.2 mb.
Keep pressing the “PILOT”
key until the altitude indicator
“ALTI” appears. Press the
“MODE” key for 2 seconds.
The fl ashing “SET” symbol
and “ZERO” are displayed.
Keep pressing the “MODE”
key until “SEAP” appears.
After pressing the “CHRO-
NO” key the display of the
current pressure at sea level
fl ashes. Change the display
with the “CHRONO” and
“LAP/RESET” keys.
TRE_GA_GC350-400.indd 62
22.12.2006 11:59:08 Uhr