E-56
There are two standard methods of expressing altitude: absolute altitude, which expresses an absolute
height above sea level, and relative altitude, which expresses the difference between the altitudes of two
different places. This watch expresses altitudes as relative altitude.
Height of building 130 m
(relative altitude)
Rooftop at an altitude of
230 m above sea level
(absolute altitude)
Sea Level
Regular calibration of the watch in accordance with values provided by local altitude (elevation) indications
is recommended before taking readings in order to maximize reading accuracy (page E-55).
E-57
Altimeter Precautions
• This watch estimates altitude based on air pressure. This means that altitude readings for the same
location may vary if air pressure changes.
• Do not rely upon this watch for altitude reading or perform button operations while sky diving, hang
gliding, or paragliding, while riding a gyrocopter, glider, or any other aircraft, or while engaging in any
other activity where there is the chance of sudden altitude changes.
• Do not use this watch for measuring altitude in applications that demand professional or industrial level
precision.
• Remember that the air inside of a commercial aircraft is pressurized. Because of this, the readings
produced by this watch will not match the altitude readings announced or indicated by the fl
The Effect of Temperature on Altitude Readings
For the more accurate altitude readings, leaving the watch on your wrist is recommended in order to
maintain the watch at a constant temperature.
• When taking altitude readings, keep the watch at as stable a temperature as possible. Changes in
temperature can affect altitude readings.
E-58
Viewing Altitude Records
You can use the Data Recall Mode to view manually saved record data, auto save values, and trek log values.
To view altitude records
1. Use
D
to select the Data Recall Mode (
REC
) as shown on page E-10.
• AboREC appea
will c
view
2. Use
B
to select the memory area you want.
REC -01-
(Manually Saved
Record Area)
(Auto Save
Value Area)
Total
(Trek Log
Value Area)
Mt.1
• Af
B
but
numbered fromMt.) through 14 (Mt.1).
Reading time
(Hour : minute)
Reading date
(month, day)
1 second
Manually Saved
Record Area Screen
Reading time
(Hour : minute)
Reading date
(month, day)
1 second
Manually Saved
Record Area Screen
E-59
3. Use
A
and
C
to scroll through the screens for an area and display the one you want.
REC
-01-
REC
-02-
REC
-30-
Manually saved records
MAX MIN ASC DSC
Auto saved values
Altitude
Altitude
E-60
MAX MIN ASC DSC
Trek Log Values (Mt.1 to Mt.14)
• ManREC01 to REC30 ), auto save MAX and MIN values, and
all in
• RecAS and DSC include altitude
that d
• For d
value
• ---- willMAX data has beMAX/
data due to error, etc.ASC ) and total descent (DSC ) val
zero.
• WhASC ) or totDSC ) exceed
99
fro
Whe
disp
• WhASC ) or totDSC ) value
bec
lowe
wheAS is 99
Altitude
10,000s
digit
1s digit
10,000s
digit
1s digit
E-61
Trek Log Values (Mt.1 to Mt.14)
High Altitude Value Low Altitude Value
Cumulative Ascent
Value
Cumulative Descent
Value
*1 *2
*1: Month and day the displayed value was recorded.
*2: Month and day cumulation started.
• Holding down
A
or
C
scrolls at high speed.
• On the high altitude value (
MAX
) and low altitude value (
MIN
) screens, the lower display area alternates
between the date (month and day) and time at one-second intervals.
• On the cumulative ascent and cumulative descent screens, the lower display area alternates between
the month and day, and the year at one-second intervals.
E-62
To delete all manually saved data
Memory contents cannot be deleted while trek log values are being recorded.
1. Use
D
to enter the Data Recall Mode.
2. Use
B
to display the Manually Saved Record Area (page E-58).
3. Hold down
E
for at least three seconds. First,
Clear Hold ALL
will fl
Hold
will disappear. Release
E
when
Hold
disappears.
• This will- - - - to appe
• Thi
To delete data in a specifi c memory
Memory contents cannot be deleted while trek log values are being recorded.
1. Use
D
to enter the Data Recall Mode.
2. Use
B
to display the memory area (Manually Saved Record Area, Auto Save Value Area, or Trek Log
Value Area) that contains the data you want to delete.
3. What you should do next depends on which memory area you displayed in step 2, above.
• If you d
A
and
C
to disp
recoREC- through REC- ) you want to del
• If you d
select anything.
• If you d
B
to disp
recoMt.1 through Mt.) you want to de
Important!
• A dele
E-63
4. Hold down
E
for at least two seconds. First,
Clear Hold
will fl
Hold
will
disappear. Release
E
when
Hold
disappears.
• If you a
E
too lHold
disa
• Deleting a r
reco
is the l- - - - wil
disp
• AfMA (high alMIN (low altitude
- - - -, wh ASC (cumulat DSC (
Operation Guide 3439
