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• Maximum / minimum altitude alert (sounds an alarm when
exceeded)
• Maximum / ascending, maximum descending speeds
• Current vertical speed
• Rate of altitude change
The altitude is shown it two ways, as a numeric value indicating
your current altitude, and as a bar chart indicating changes in
altitude. Both values will change as you move about.
NOTE
In ALTI-BARO Mode, the current altitude is always
displayed in larger font, in every screen except the sea pres-
sure-setting screen.
ACCESSING THE ALTIMETER OPTIONS
Press MODE to access the ALTI-BARO mode, then press
SELECT/+ to loop through the options.
SET CURRENT ALTITUDE AND RESOLUTION
When you first use the watch, it is important to set the current
altitude and local sea-level pressure so your ascending and
descending altitude can be accurately measured. You can
find the current altitude by comparing your position to a
topographical map, and then entering the value in the watch.
NOTE
It is necessary to reset the altitude after being in a
pressurized chamber (such as an airplane).
For instructions on setting the sea-level pressure, refer to the
next section.
Diagram
Tip: You can also set the current altitude and alarm limits with
the help of the PC software (see PC section). (RP109 only)
NOTE
The sea level pressure reading will change if the altitude
is adjusted.
11
Instructions
1. Press and hold FUNC/SET for 2 seconds while in
ALT mode.
2. Use SELECT/+ or ST/SP/- to change the value.
The value will change in unit increments based on
the resolution you set (next step) and the measure-
ment unit you selected when setting the CLOCK (➔
9).
3. Press FUNC/SET to switch to the Resolution set-
ting screen, then press ST/SP/- to change the
value. The resolution is the increment at which the
altitude will display: 3 / 10 ft, or 1 / 3 meters.
4. Press FUNC/SET to exit the setting mode.
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