Operation Guide 3172
There are two standard methods of expressing altitude: Absolute altitude and relative altitude. Absolute altitude expresses an absolute height above sea level. Relative altitude expresses the difference between the height of two different places.
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| Height of building 130 m |
| Rooftop at an altitude of | |||||||||
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| (relative altitude) |
| 230 m above sea level | |||||||||
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| (absolute altitude) | |||||
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| Sea Level | |||
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.
•The semiconductor pressure sensor used by the watch for altitude measurements is also affected by temperature. When taking altitude measurements, do not subject the watch to temperature changes.
•Do not rely upon this watch for altitude measurements 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 the flight crew.
Specifying Temperature, Barometric Pressure, and Altitude Units
Use the procedure below to specify the temperature, barometric pressure, and altitude units to be used in the Barometer/Thermometer Mode and the Altimeter Mode.
3.Use A and C to scroll through the screens for an area and display the one you want. Altitude
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| REC |
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| REC |
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| REC |
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| 01 |
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| 02 |
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| 25 |
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| Manually saved records |
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Altitude |
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| MAX |
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| MIN |
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| ASC |
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| DSC |
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Auto saved values
• While a manually saved record (REC 01 through REC 25) is displayed, the bottom of the screen |
will alternate between the date (month, day) and time (hour, minute) the record was created. |
• While MAX or MIN auto saved values are displayed, the bottom of the screen will alternate |
between the date (month, day) and time (hour, minute) the value was recorded. |
• While ASC or DSC auto saved values are displayed, the bottom of the screen will alternate |
between the date (month, day) and year that the ASC or DSC record was first created. |
• For detailed information about auto saved values, see “Auto Save Values”. |
4. After you are finished viewing data, use D to exit the Data Recall Mode. |
• |
In such cases, total ascent (ASC) and total descent (DSC) values will show zero. |
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ll | l | ll |
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Important!
When TYO (Tokyo) is selected as the Home City, the altitude unit is set automatically to meters (m), the barometric pressure unit to hectopascals (hPa), and the temperature unit to Celsius (°C). These settings cannot be changed.
To specify temperature, barometric pressure, and altitude units
1.In the Timekeeping Mode, hold down E until the currently selected city code starts to flash. This is the city code setting screen.
•Before the city code starts to flash, the message SET Hold will appear on the display. Keep E depressed until SET Hold disappears and the city code starts to flash.
2.Keep pressing D until UNIT appears in the upper left corner of the screen.
•See step 3 under “To change the current time and date settings manually” for information about how to scroll through setting screens.
• When the total ascent (ASC) or total descent (DSC) exceeds 99,995 meters (or 327,980 feet), the |
applicable value will restart from zero. |
Ten thousand digit | • If the total ascent (ASC) or total descent (DSC) value becomes |
| five digits, the leftmost (ten thousand) digit will appear in the upper |
| right of the display. The nearby illustration shows the display when |
| the |
To clear the contents of a specific memory area
1. Use D to enter the Data Recall Mode.
2. Use B to select the memory area you want to clear.
3. Perform the operations below to specify the units you want.
To specify this unit: | Press this key: | To toggle between these settings: |
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Altitude | A | m (meters) and ft (feet) |
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Barometric Pressure | B | hPa (hectopascals) and inHg (inches of mercury) |
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Temperature | C | °C (Celsius) and °F (Fahrenheit) |
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4. After the settings are the way you want, press E twice to exit the setting screen.
Precautions Concerning Simultaneous Measurement of Altitude and Temperature
Though you can perform altitude and temperature measurements at the same time, you should remember that each of these measurements requires different conditions for best results. With temperature measurement, it is best to remove the watch from your wrist in order to eliminate the effects of body heat.
• Note that the contents of the memory area you select will be deleted as soon as you perform step 3 below. The clear operation cannot be undone, so double check to make sure you really want to delete the contents of the memory area you select here.
3. Hold down E until CLR Hold appears on the display and then disappears. Release E after CLR disappears.
•This will clear the memory area you selected in step 2 and then return to the data display screen, which now shows
Looking up Sunrise and Sunset Times
You can use the Sunrise/Sunset Mode to look up the sunrise and sunset times for a particular date (year, month, day) and location.
In the case of altitude measurement, on the other hand, it is better to leave the watch on your wrist, because doing so keeps the watch at a constant temperature, which contributes to more accurate altitude measurements.
•To give altitude measurement priority, leave the watch on your wrist or in any other location where the temperature of the watch is kept constant.
•To give temperature measurement priority, remove the watch from your wrist and allow it to hang freely from your bag or in another location where it is not exposed to direct sunlight. Note that removing the watch from your wrist can affect pressure sensor readings momentarily.
Viewing Altitude Records
Use the Data Recall Mode to view manually saved altitude readings and automatically saved high altitude, low altitude, total ascent, and total descent values. Altitude data records are created and saved in the Altimeter Mode.
Current | Pointer 3 |
date | Pointer 2 |
Pointer 1 Sunset Sunrise
time time
To enter the Sunrise/Sunset Mode
While in the Timekeeping Mode, press D to enter the Sunrise/Sunset Mode.
• This will display the sunrise and sunset times for the current date |
based the currently specified city code, latitude, and longitude. |
• The three Daylight Pointers described below are on the display in the |
Sunrise/Sunset Mode. |
Pointer 1: Sunset time in |
Pointer 2: Sunrise time in |
Pointer 3: This flashing pointer appears only when Pointer 1 and |
Pointer 2 are indicating the sunrise and sunset times for the current |
Timekeeping Mode date. It indicates the current Timekeeping Mode |
time in |
• Before trying to use the Sunrise/Sunset Mode, you need to configure |
settings for the city code, longitude, and latitude for the location whose |
Record name
Altitude
To view altitude records
1. | Use D to select the Data Recall Mode (REC) as shown in “Selecting a |
| Mode”. |
| • About one second after REC appears on the display, the display |
| will change to show the first record of the memory area you were |
| viewing when you last exited the Data Recall Mode. |
2. | Use B to select the memory area you want. |
sunrise and sunset times you want to view. |
• The factory default configuration of the location is: City Code: TYO |
(Tokyo); Latitude: North 36 degrees; Longitude: East 140 degrees. |
• You can find latitude and longitude for various cities around the globe |
in the “Site Data List”. |
To view the sunrise/sunset time for a particular date
Alternates between measurement time (Hour : Minutes) and measurement date (Month Day)
| REC 01 |
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(Manually Saved |
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| (Auto Save |
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| Record Area) |
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| Value Area 1) |
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| Value Area 2) | |
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Date
Sunset time Sunrise time
1.Enter the Sunrise/Sunset Mode.
•This will display the sunrise and sunset times for the current date at the location specified by the city code, latitude, and longitude.
2.While the sunrise/sunset time are on the display, use A (+) and C
•The sunrise and sunset times for the selected date will be indicated by values and pointers.
•You can select any date between January 1, 2000 and December 31, 2099.
Note
•Sunrise/sunset time is displayed in
•If you think that the sunrise and/or sunset times are not correct for some reason, check the watch’s city code, longitude and latitude settings.
•The sunrise and sunset times displayed by this watch are times at sea level. Sunrise and sunset times are different at altitudes other than sea level.
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