Operation Guide 2891
14
Cumulative Data
In the Recall Mode, each press of the
B
button toggles the display
between the altitude record screen and the cumulative data screen.
Altitude Record Screen
Cumulative Data Screen
When the cumulative data screen is displayed, use the
C
(forward)
and
A
(back) buttons to scroll through the cumulative data.
•
High altitude and low altitude are not cumulative values.
High Altitude
Total Descent
Total Ascent
Low Altitude
Clearing Cumulative Data Memory
Use the procedure below to clear the contents of cumulative data
memory.
•
Clearing cumulative data memory deletes high altitude, low
altitude, total ascent, and total descent data.
1.
In the Recall Mode, press
the
B
B
B
B
B
button to switch to
the cumulative data
screen, and then hold
down the
E
E
E
E
E
button.
2.
After “CLR” appears on
the display, keep the
E
E
E
E
E
button depressed for two
more seconds until the
watch beeps, indicating
that cumulative data has
been cleared.
1.
In the Altitude Mode, hold
down the
E
E
E
E
E
button for
about two seconds until
“SET” appears at the top
of the display.
•
After about four or five
seconds, the altitude value
will appear at the bottom of
the display.
2.
Use the
C
C
C
C
C
(+) and
A
A
A
A
A
(–)
buttons to adjust the
reference altitude value.
•
Each press of the
C
button
or
A
button changes the
displayed value by 5 meters.
Setting a Reference Altitude
Use the following procedure to set a reference altitude in accordance with a reading produced by another device or an altitude value
obtained from a marker or other source.
Altitudes displayed by your watch can be affected by changes in atmospheric pressure and temperature, and by changes in
temperature at different altitudes. Because of this, it is always a good idea to use the procedure below to update the reference
altitude value in accordance with altitude values indicated on markers along your route.
•
Holding down either button scrolls the setting at high speed.
•
Pressing the
C
and
A
buttons at the same time returns to
the factory default setting, which is indicated by “OFF” for the
reference altitude.
•
The reference altitude can be set in a range of –10,000
meters to 10,000 meters.
3.
After the setting is the way
you want, press the
E
E
E
E
E
button to return to the
Altitude Mode screen.
•
The watch automatically exits the reference altitude setting screen
if you do not perform any operation for about two or three
minutes.
Reference Altitude
(2 seconds)
（−）
（＋）
If temperature reading accuracy is
a priority...
If temperature accuracy is a priority, remove the watch from
your wrist so it is not affected by your body temperature.
•
Note, however, that removing the watch from your wrist will make
altitude readings more prone to being affected by changes in air
temperature. Because of this, the chance of altitude measurement
error increases slightly when the watch is removed from the wrist.
•
After removing the watch from your wrist, it takes about 20 to 30
minutes before the temperature of the watch becomes the same
as the air temperature.
❚
When you want to measure with either
one a priority
If accurate altitude
readings are a
priority, try to keep
the temperature of
the watch as stable
as possible.
Example: Keep the
watch on
your
wrist, etc.
If accurate
temperature
readings are a
priority, keep the
watch from being
affected by your
body temperature.
Example: Keep the
watch
inside your
bag,
where it is
not
exposed to
direct
sunlight.
Altitude Primer
❚
Relationship between Altitude,
Barometric Pressure, and Temperature
Generally, both barometric pressure and temperature are lower,
the greater the altitude from sea level. This means you can
determine your altitude if you know the current air temperature.
Your watch uses International Standard Atmosphere (ISA) data on
the relationship between altitude and barometric pressure that is
defined by the International Civil Aviation Organization (ICAO) to
estimate your current altitude and displays a relative altitude
value.
3,000m
4,000m
2,000m
1,000m
0m
701hPa
616hPa
795hPa
899hPa
1,013hPa
3,500m
2,500m
1,500m
500m
8hPa per
100 meters*
9hPa per
100 meters*
10hPa per
100 meters*
11hPa per
100 meters*
12hPa per
100 meters*
–11
o
C
–4.5
o
C
2
o
C
15
o
C
8.5
o
C
Temperature
Pressure
Altitude
(International Standard Atmosphere data)
6.5
o
C per
1,000
meters*
*
Approximate
Viewing Altitude Memory Records
You can use the Recall Mode to view the records that are stored in memory in the Altitude Mode.
•
In the Timekeeping Mode, press the
D
button once to enter to the Recall Mode.
❚
To view altitude memory records
In the Recall Mode, use the
C
(forward) and
A
(back) buttons to scroll through records in altitude memory.
•
Holding down either button scrolls at high speed.
Time
Newest Data
1-second
interval
Total Ascent
High Altitude
Low Altitude
Total Descent
Relative Altitude
Month/Day
Altitude
