CASIO Watch 5450 -e altimeter work 2
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 by 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.
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 A until the currently selected city code starts to fl ash. This is the city code setting screen.
• Before the city code starts to fl ash, the message SET Hold will appear on the display. Keep A depressed until SET Hold disappears and the city code starts to flash.
2. Keep pressing C until TEMP (temperature), ALTI (altitude), or BARO (barometric pressure) appears in the left corner of the screen.
• See step 3 under “To change the current time and date settings” (page E-18) for information about how to scroll through setting screens.
3. Perform the operations below to specify the units you want.
To specify this unit: Press this key: To toggle between these settings:
Temperature D °C (Celsius) and °F (Fahrenheit)
Altitude D m (meters) and ft (feet)
Barometric Pressure D hPa (hectopascals) and inHg (inches of mercury)
4. After the settings are the way you want, press A 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. 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.
Checking the Current Time in a Different Time Zone
You can use the World Time Mode to view the current time in one of 31 time zones (48 cities) around the globe. The city that is currently selected in the World Time Mode is called the
“World Time City”.
To enter the World Time Mode
Use C to select the World Time Mode (WT) as shown on page E-10.
WT will appear on the display for about one second. Next, the display will change to show the city code of the currently selected World Time City.
To view the time in another time zone
In the World Time Mode, use D (East) to scroll through city codes.
To specify a standard time or daylight saving time (DST) for a city
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