Operation Guide 3258
To take an altimeter reading
Current time
Current Altitude
altitude differential
1.Make sure the watch is in the Timekeeping Mode or any one of the sensor modes.
•The sensor modes are: Digital Compass Mode, Barometer/ Thermometer Mode, and Altimeter Mode.
2.Press A to start Altimeter measurement.
•ALTI will appear on the display, indicating that Altimeter measurement is in progress. The first reading will appear on the display after about four or five seconds.
•The current altitude value is displayed in units of 5 meters (20 feet).
•After the first reading is obtained, the watch continues to take altimeter readings automatically every five seconds for the first three minutes, and then every two minutes after that (under initial default settings).
•You can use the procedure under “To select the altitude auto measurement method” (page
3.After you are finished using the Altimeter, press D to return to the Timekeeping Mode and stop auto measurement.
•The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about 24 hours after entering the Altimeter Mode (under initial default settings).
Note
•The measurement range for altitude is
•The displayed altitude value changes to - - - - if an altitude reading falls outside the measurement range. An altitude value will reappear as soon as the altitude reading is within the allowable range.
•Normally, displayed altitude values are based on the watch’s preset conversion values. You also can specify a reference altitude value, if you want. See “Specifying a Reference Altitude Value” (page
•You can change the unit for displayed altitude values to either meters (m) or feet (ft). See “To specify temperature, barometric pressure, and altitude units” (page
Selecting an Altitude Auto Measurement Method
You can select either of the following two altitude auto measurement methods. 0’05: Readings at
2’00: Readings at
Note
If you do not perform any button operation while in the Altimeter Mode, the watch will return to the Timekeeping Mode automatically after 24 hours (altitude auto measurement method: 2’00) or after one hour (altitude auto measurement method: 0’05).
To select the altitude auto measurement method
1.In the Altimeter Mode, hold down E until SET Hold appears on the display and then Hold disappears.
2. Press D to display the current altitude auto measurement method setting.
• This will cause either 0’05 or 2’00 to flash on the display.
3. Press A to toggle the altitude auto measurement method setting between 0’05 and 2’00.
4. Press E to exit the setting screen.
Using the Altitude Differential Value
Altitude differential | The Altimeter Mode screen includes an altitude differential value that | |
shows the change in altitude from a reference point you specify. The | ||
| ||
| altitude differential value is updated each time the watch takes an altitude | |
| reading. | |
| • The range of the altitude differential value is | |
| feet) to 3,000 meters (9,980 feet). | |
| • - - - - is displayed in place of the altitude differential value whenever | |
| the measured value is outside the allowable range. | |
| • See “Using the Altitude Differential Value While Mountain Climbing or | |
| Hiking” (page | |
| feature. | |
To specify the altitude differential start point | ||
Altitude differential | In the Altimeter Mode, press E. | |
• The watch will take an altitude reading and register the result as the | ||
| ||
| altitude differential value start point. The altitude differential value will | |
| be reset to zero at this time. | |
Using the Altitude Differential Value While Mountain Climbing or Hiking
After you specify the altitude differential start point while mountain climbing or hiking, you easily can measure the change in the altitude between that point and other points along the way.
To use the altitude differential value
Specifying a Reference Altitude Value
The altitude readings produced by this watch are subject to error caused by changes in air pressure. Because of this, we recommend that you update the reference altitude value whenever one is available during your climb. After you specify a reference altitude value, the watch adjusts its
Destination altitude
Current location
Altitude differential
Altitude
1.In the Altimeter Mode, check to make sure that an altitude reading is on the display.
•If an altitude reading is not displayed, press A to take one. See “To take an altimeter reading” (page
2.Use the contour lines on your map to determine the difference in altitude between your current location and your destination.
3.In the Altimeter Mode, press E to specify your current location as the altitude differential start point.
•The watch will take an altitude reading and register the result as the altitude differential value start point. The altitude differential value will be reset to zero at this time.
4.While comparing the altitude difference you determined on the map and the watch’s altitude differential value, advance towards your destination.
•If the map shows that the difference in altitude between your location and your destination is +80 meters for example, you know you will be nearing your destination when the displayed altitude differential value shows +80 meters.
To specify a reference altitude value
1.In the Altimeter Mode, hold down E until SET Hold appears on the display and then Hold disappears.
2. Press A (+) or C
•Change the reference altitude value to an accurate altitude reading that you get from a map or other source.
• You can set the reference altitude value within the range of
•Pressing A and C at the same time returns to OFF (no reference altitude value), so the watch performs air pressure to altitude conversions based on preset data only.
3.Press E to exit the setting screen.
Types of Altitude Data
The watch can maintain two types of altitude data in its memory: manual measurement records, and auto save values (low altitude, high altitude, total ascent, total descent).
•Use the Data Recall Mode to view data stored in memory. See “Viewing Altitude Records” (page
Manual Measurement Records
Any time you perform the procedure below in the Altimeter Mode, the watch will create and store a record with the currently displayed altitude reading, along with the date and time the reading was taken. There is enough memory to store up to 14 manual measurement records, which are numbered from REC 1 through REC 14.
To save a manual measurement
1.In the Altimeter Mode, check to make sure that an altitude reading is on the display.
•If an altitude reading is not displayed, press A to take one. See “To
take an altimeter reading” (page
2.Hold down A until REC Hold appears on the display and then changes to REC.
•This will save the currently displayed altitude reading in a manual measurement record, along with the measurement time and date.
•The watch will return to the Altimeter Mode screen automatically after the save operation is complete.
•There is enough memory to store up to 14 manual measurement records. If there are already 14 manual measurement records in memory, the above operation will cause the oldest record to be deleted automatically to make room for the new one.
Auto Save Values
Two sets of auto save values (Set 1 and Set 2) are maintained in watch memory.
Set 1 | Set 2 |
High Altitude | High Altitude |
Low Altitude | Low Altitude |
Total Ascent | Total Ascent |
Total Descent | Total Descent |
•These values are checked and updated automatically by the watch as altitude auto measurements are taken.
How High and Low Values Are Updated
While the watch is in the Altimeter Mode, altitude readings are taken automatically at the interval specified by the altitude auto measurement method (page