Operation Guide 3148
Altitude graph |
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•In the Altimeter Mode, press the A button to toggle between the altitude graph and the altitude change indicator. The altitude change indicator shows the relative change between the latest altitude reading and the one before it.
•Nothing is displayed for the altitude change indicator when the current altitude reading is outside the watch’s altitude measurement range
10,000
3. After you are finished using the Altimeter Mode Stopwatch, reset it to all zeros.
•While an Altimeter Mode stopwatch operation is in progress, you can toggle between the altitude graph and the altitude change indicator by pressing the A button. The altitude change indicator graphically shows how the current altitude reading differs from the previous reading. The type of indicator that appears depends on the relative size of the altitude change.
Current Stopwatch Session Record
The current stopwatch session record contains the data described below. The contents of this record are retained until you start a new Altimeter Mode stopwatch measurement session.
Data | Description |
High Altitude | Highest altitude reached during the current Altimeter Mode |
(MAX) | stopwatch session. |
Low Altitude | Lowest altitude reached during the current Altimeter Mode |
(MIN) | stopwatch session. |
Total Ascent | Total cumulative ascent during the current Altimeter Mode |
Altitude change indicator
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More than +20m
+15m
+10m
+5m
±0m
Less than
(ASC) | stopwatch session. |
Total Descent | Total cumulative descent during the current Altimeter |
(DSC) | Mode stopwatch session. |
•The maximum total ascent and total descent value is 99,995 meters
(or 99,980 feet). Each value reverts to zero after the maximum is reached.
How current Altimeter Mode stopwatch session record data is updated Note
• When you press E to start a new Altimeter Mode stopwatch session, the |
watch will clear data that is already stored in the current stopwatch session |
record. |
• The watch takes altitude readings and calculates data as described below, |
and updates the current stopwatch session record accordingly. Note that |
measurement and saves depend on whether or not the watch is in the |
Altimeter Mode. |
To specify the altitude reading interval
• In the Altimeter Mode |
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Altitude measurement interval
1.In the Altimeter Mode, hold down A for about two seconds until either OFF or the current reference altitude value starts to flash. This is the setting screen.
2.Press D to display the current altitude reading interval setting.
•This will cause either 0'05" or 2'00" to flash on the display.
3.Press A to toggle the setting between 0'05" and 2'00".
•0'05": Readings at
•2'00": Readings at
4.Press A to exit the setting screen.
Altitude Measurement | First 3 minutes | After 3 minutes |
Interval |
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0'05" | Updated every 5 | Updated every 5 seconds |
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2'00" | Updated every 5 | Updated every 2 minutes |
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•Outside the Altimeter Mode
Readings are taken and session data is updated every two minutes.
Historical Record
The historical record keeps track of high altitude, low altitude, total ascent, and total descent values across multiple Altimeter Mode stopwatch sessions. The contents of this record are updated continually while an Altimeter Mode stopwatch operation is in progress.
How the historical record is updated
Saving Altitude Readings in Memory
The following describes the different types of records the watch creates for altitude readings.
•You can take manual altitude readings, which are stored in memory along with the date (year, month, day) of the reading. There is enough memory to hold up to 20 altitude records (readings).
•The Altimeter Mode has a stopwatch (which is independent of the watch’s Stopwatch Mode) that you can use to time your climbs. While the Altimeter Mode stopwatch is running, the watch takes altitude readings automatically (without storing them in memory). Each time you reset the Altimeter Mode stopwatch to all zeros, the highest altitude, lowest altitude, cumulative ascent, and cumulative descent achieved during the last Altimeter Mode stopwatch session are stored in a “current stopwatch session record”.
•A separate “historical record” keeps track of the highest altitude, lowest altitude, cumulative ascent, and cumulative descend of all past Altimeter Mode stopwatch sessions.
To take a manual altitude reading
1.Press C to enter the Altimeter Mode.
2.Hold down C for about one second until REC flashes on the display.
•At this time the watch will beep and the current altitude reading will be saved along with the current date (year, month, day) and time.
3.REC will stop flashing and the watch will return to the Altimeter Mode
automatically after data save is complete.
•Memory can hold up to 20 altitude records. Storing a new reading while there already are 20 in memory will delete the oldest record to make room for the new reading.
To take altitude readings using the Altimeter Mode stopwatch
1.In the Timekeeping Mode, use the C button to enter the Altimeter Mode.
•The watch will start altitude measurement automatically. Note that readings are not saved as altitude records.
2.Press the E button to start the Altimeter Mode stopwatch.
•While an Altimeter Mode stopwatch operation is in progress, the display shows the elapsed time, current altitude, and the change in altitude since the start of the stopwatch operation.
The watch performs the following operations continually while an Altimeter Mode stopwatch operation is in progress.
Data | Update Operation |
High Altitude | The historical record value is compared with the current |
| reading and the greater of the two is recorded in the |
| historical record. |
Low Altitude | The historical record value is compared with the current |
| reading, and the lesser of the two is recorded in the |
| historical record. |
Total Ascent | The current Altimeter Mode stopwatch session value is |
Total Descent | added to the historical record value. |
•See “Clearing the Historical Record” for information about clearing the historical record, which restarts all data values from zero.
Other Altimeter Mode Features
This section explains other features and settings that are available in the Altimeter Mode. Note that all of the information in this section applies to all types of Altimeter Mode measurements, unless specifically indicated otherwise.
Specifying a Reference Altitude
After you specify a reference altitude, the watch adjusts its
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