Casio 3022 How the Altimeter Measures Altitude, Displaying Your Current Altitude, Altitude Records, Deleting All Altitude Record Data, To display your current altitude

Current altitude

Operation Guide 3022

How the Altimeter Measures Altitude

The altimeter can measure altitude based on its own preset values, or a reference altitude specified by you.

When you measure altitude based on preset values

Data produced by the watch’s barometric pressure sensor is converted to approximate altitude based on ISA (International Standard Atmosphere) conversion values stored in watch memory.

When you measure altitude using a reference altitude specified by you After you specify a reference altitude, the watch uses that value to convert the current measured barometric pressure value to altitude.

•To determine the height of a tall building, for

example, specify zero for the reference altitude value while you are on the ground floor. Then when you go to a higher floor, the altitude displayed by the watch will indicate the height from the ground floor. Note that you may not be able to get a good reading if the building is pressurized or air-conditioned.

•When mountain climbing, you can set the

reference value in accordance with a marker	B
reference value in accordance with a marker
along the way or altitude information from a
map. After that, the altitude readings	A
produced by the watch will be more accurate	400
produced by the watch will be more accurate
than they would without a reference altitude.

Displaying Your Current Altitude

You can use the procedure described in this section to display your current altitude. If you leave the watch in the Altimeter Mode, it will update the displayed altitude value regularly and indicate reading-to-reading changes in the altitude graph.

You can select either of the two altitude measurement types described below. SHORT: Readings at five-second intervals for one hour

LONG: Readings at five-second intervals for the first three minutes followed by two-minute intervals for approximately nine or 10 hours

•For information about configuring settings for the altitude reading interval and duration, see “To select the altitude measurement type”.

Important!

•The procedure in this section simply displays values indicating your current altitude, without storing them in watch memory. For information about recording altitude readings in watch memory, see “Altitude Records”.

To display your current altitude

To select the altitude measurement type

Altitude	measurement type			1.	In the Altimeter Mode, hold down A.
Altitude	measurement type				• This will cause SET to appear on the display.
l	l	l	l	2.	Release A and wait for four or five more
l					seconds until either OFF or the current
l					seconds until either OFF or the current
l			l		reference altitude value (if set) starts to flash.
			l		reference altitude value (if set) starts to flash.
					This is the setting screen.
l					This is the setting screen.

			l	3.	Press C twice to display the current altitude
				3.	Press C twice to display the current altitude
l	l	l	l		measurement type setting.
	l	l			• This will cause either SHORT or LONG to
					• This will cause either SHORT or LONG to

flash on the display.

4. Press D to toggle the altitude measurement type setting between SHORT and LONG.

• SHORT: Readings at five-second intervals for one hour

• LONG : Readings at five-second intervals for the first three minutes followed by two-minute intervals for approximately nine or 10 hours thereafter

5. Press A to exit the setting screen.

Altitude Records

Storing altitude data in memory creates an altitude record. If a reading is greater than all of the other altitude readings currently stored in memory, it is stored in the maximum altitude record. The following describes the contents of each type of record.

Recording date (year, month, day), time (hour, minutes) and altitude: Up to 40 records

Maximum altitude (including recording date and time): 1 record

•The maximum altitude record shows information about the altitude record that has the greatest altitude value. The maximum altitude record is updated any time a reading produces an altitude that is greater than that of the current maximum altitude record.

To store an altitude record in memory

In the Altimeter Mode, hold down D for about one second until the watch beeps twice. This indicates that a record of the altitude reading has been stored in memory.

• You can recall data in memory using the Data

Recall Mode.

• Note that there is enough memory to store a

total of 40 records. If there are 40 records

already in memory, storing another one deletes

the oldest record automatically to make room

for the new one.

Altitude graph

Current altitude

Timekeeping Mode time

Altitude alarm on indicator

Altitude Graph Screen

Altitude alarm value differential

Altitude differential pointer

Altitude Alarm

Differential Screen

1.Press D in the Timekeeping Mode or Barometer/Thermometer Mode to enter the Altimeter Mode.

•The watch will start altitude measurement automatically and display the result.

•It can take up to four or five seconds for the altitude reading to appear after you enter the Altimeter Mode.

2.If you want the altitude value and altitude graph to be updated in accordance with the altitude measurement type (interval and duration) you have selected, leave the watch in the Altimeter Mode.

•In the Altimeter Mode, press A to toggle the display between the Altitude Graph screen and the Altitude Alarm Differential screen.

•For details about the altitude alarm differential, see "Altitude Alarm".

•If you want to restart the altitude

measurement operation at any point, press

3.To stop the altitude measurement operation, press C to exit the Altimeter Mode.

To view altitude record data

1.Use C to enter the Data Recall Mode.

2.Use D and B to cycle through the altitude record screens in the sequence shown below.

Maximum Data			Oldest Data	Newest Data
Recording date
(Year Month – Day)	Altitude
	Press D.
	▲	▲		▲
	▲	Press B.		▲
		Press B.
▲ Recording time				▲
(Hour : Minutes)

•The maximum altitude record appears first. After that, each press of D or B scrolls through records in sequence.

•If an error occurs while altitude data is being stored in memory or if there is no altitude data in memory, xxxxx is shown for the measured altitude value on the corresponding altitude record screen.

Deleting All Altitude Record Data

Use the following procedure to delete all altitude record data, including the maximum altitude record. Note that deletion of individual altitude records is not supported.

Notes

•Normally, displayed altitude values are based on the watch’s preset conversion values. You also can specify a reference altitude, if you want. See “Specifying a Reference Altitude”.

•Altitude is displayed in units of 5 meters (20 feet).

•The measurement range for altitude is –700 to 10,000 meters (–2,300 to 32,800 feet).

•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 xxxxx 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 measurement unit for displayed altitude values to either meters (m) or feet (ft). See “To select the temperature, barometric pressure, and altitude units”.

To delete all altitude record data

1.In the Data Recall Mode, press A.

•This will cause CLEAR to appear on the display, letting you know that data is about to be deleted.

2.Keep A depressed for about three more seconds, until CLEAR starts to flash. You can release A at this time.

•CLEAR will continue to flash after all of the data is deleted. After that, the display will change to “xxxx”, which indicates that there is no data in memory.