ALTIMETER
A
Important!
•This watch estimates altitude based on air pressure. This means that altitude readings for the same location may vary if air pressure changes.
•This watch employs a semiconductor pressure sensor, which is affected by temperature changes. When taking altitude measurements, be sure to do so while ensuring that the watch is not exposed to temperature changes.
•Do not rely upon this watch for altitude measurements or perform button operations while engaging in sports where there are sudden altitude changes, while sky diving, hang gliding, or paragliding, or while riding a gyrocopter, glider, or any other aircraft.
•Do not use this watch for measuring altitude in applications that demand professional or industrial level precision.
How the Altimeter Works
With the Preset Values (No Reference Altitude)
•The watch measures the air pressure at your current location and uses the
With a Reference Altitude
•After you set the reference altitude, the watch adjusts its air pressure to
altitude conversion calculation accordingly.
• To determine the height of a tall building, set the reference altitude to 0 on the ground floor. Note, however, that you may not be able to get a good reading if the building is pressurized or
•When mountain climbing, you can set the reference value in accordance with a
marker along the way or altitude | B |
| |
information from a map. After you do this, |
|
the altitude readings produced by the | A |
watch will be more accurate than they | 400 |
would without a reference altitude. |
|
•Note that the following conditions will
prevent you from obtaining accurate readings:
When air pressure changes because of changes in the weather Extreme temperature changes
When the watch itself is subjected to strong impact
Understanding the Altimeter Screen
Press E to enter the Altimeter Mode.
Altitude graph (current altitude flashing) (unit: 10m/40 ft.)
1 second later | Altitude |
| |
▲ |
|
Remaining memory | Timekeeping Mode time |
•Altitude is displayed in units of 5 meters (20 feet).
•The measurement range for altitude is
•The measured altitude may be a negative value in cases where there is a reference altitude value set or because of certain atmospheric conditions.
•The displayed altitude value changes to xxxx meters (or feet) if a measured altitude falls outside the measurement range. The altitude value will be displayed again as soon as the measured altitude is within the allowable range.
•You can change the unit of measurement for the displayed altitude values between meters (m) and feet (ft). See “To change the Altitude Units”.
About Altitude Measurements
There are two types of altitude measurements: those for displayed data (Altimeter Mode measurements) and those for memory data (Memory measurements).
Altimeter Mode measurement
This type of measurement is performed only when the watch is in the Altimeter Mode. As soon as you enter the Altimeter Mode, measurements are taken every five seconds for the first three minutes. After that, measurements are taken every two minutes.
• The ALTI indicator flashes on the display while a measurement is in progress.
Memory measurements
Memory measurements are taken independently of Altimeter Mode measurements and stored directly into memory (along with the date and time of the measurement) for later recall. There are two types of memory measurements: “Auto measurements” and “Manual measurements”.
Auto measurements
With Auto measurement, the watch continuously performs measurements whenever the minutes in the Timekeeping Mode reach 00, 15, 30, or 45, until you switch Auto measurements off. The watch continues to take measurements regardless of whether or not you change modes, so you can keep a running log of altitude changes automatically.
Manual measurements
You can use the manual procedure to take a reading anytime you want to store your current altitude data into memory for later recall. Manual memory measurements can be performed only while the watch is in the Altimeter Mode.
Selecting Auto or Manual Measurement
Use the following procedure to switch between Auto or Manual measurement. Note that you cannot perform this operation while a preset Auto measurement is already in progress.
To select Auto or Manual measurement
1. In the Altimeter Mode, hold down A until the display clears. After four or five seconds, either OFF or the current reference altitude value (if set) will start to flash, which indicates the setting screen.
2. Press D twice to move the flashing to the memory measurement setting (AUTO or MANUAL).
•Press D to move the flashing in the sequence shown below.
|
| Reference |
|
| Altitude |
|
| Memory |
|
| Altitude |
|
|
| Altitude |
|
| Alarm |
|
| Measurement |
|
| Unit |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3.While the memory measurement setting is flashing, press B or Eto select AUTO (Auto measurement) or MANUAL (Manual measurement).
4.Press A to exit the setting screen.
•An indicator on the display shows the type of measurement (AUTO or MANUAL) that you currently have selected.
To use Auto measurement
1.Confirm that the AUTO indicator is shown on the display.
•If it is not, use the procedure under “To select Auto or Manual measurement” to select Auto measurement.
2.In the Altimeter Mode, hold down Euntil the watch emits a short beep, indicating the start of the measurement.
3.To stop measurements at any point in the Altimeter Mode, hold down E again until the watch emits a short beep.
•The data that is measured when you first start Auto measurement is also stored into memory.
•The AUTO indicator flashes on the display when you start Auto measurements. The AUTO indicator continues to flash (indicating that measurements continue) even if you change modes.
•Auto measurement cuts off automatically whenever there are 49 records stored in memory. The 50th record measurement when you stop measurement in step 3 above is also stored in memory.
•A final measurement is taken when you turn off Auto measurement, and that data is also stored into memory. Such data is indicated by FIN during the recall operation.
To use Manual measurement
1.Confirm that the MANUAL indicator is shown on the display.
•If it is not, use the procedure under “To select Auto or Manual measurement” to select Manual measurement.
2.In the Altimeter Mode, hold down Euntil the watch emits a short beep, indicating that a measurement is taken.
•Repeat step 2 whenever you want to take a reading.
•Button operation becomes impossible during the four or five seconds that it takes to complete a measurement. Normal operation will return once the operation is finished.
Setting a Reference Altitude
After you set a reference altitude, the watch adjusts its