Casio QW-1471 Manual Download Page 4

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Applications

When no reference altitude is preset:

The watch produces approximate altitude readings.

When a reference altitude is preset:

Before beginning the climb, set the reference altitude to 0 m at the foot of
the mountain. This makes it possible to determine the difference in
altitude between the reference point and your destination.

To determine the height of a tall
building, set the reference
altitude to 0 m on the ground
floor. Note, however, that if the
building is pressurized or air
conditioned, you may not be
able to get a good reading.

To determine the difference in altitude between your house and the
another location, set the reference altitude to 0 m at your house, and then
check the reading when you arrive at the other location.

About altitude measurements

There are two types of altitude measurements: those for displayed data
(Altimeter Mode measurements) and those for memory data (see “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 display unit for Altimeter
Mode measurements is 5 m, and the measurement range is 0 to 4000 m.

The measured altitude may be a negative value in cases where there is a
reference altitude value set or because of certain atmospheric conditions.

Understanding the altimeter display

Use 

C

 to enter the Altimeter Mode. Note that once you enter the Altimeter

Mode, if you do not press any button for 10 or 11 hours, the watch
automatically returns to the Timekeeping Mode.

*

1 “ALTI” flashes while a measurement is being taken every five seconds.

It does not flash during measurements taken every two minutes.

*

2 “AUTO” flashes on the display while a memory measurement is in

progress. The indicator stops flashing while no measurement is being
performed.

*

3 “

AL

” appears on the display when the altitude alarm is switched on.

Memory measurements

Memory measurements are taken independently of Altimeter Mode
measurements and stored directly into memory (along with temperature
measurements) for later recall. With memory measurement, the watch
continuously performs measurements whenever the minutes in the
Timekeeping Mode reach 00, 15, 30, or 45, until you switch memory
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 and temperature changes automatically.

About the memory...

The memory item stored by the watch consists of the current altitude, plus
the month, date, time, and temperature. Data is stored in the same
sequence that it is input.
Memory can hold a total of 50 sets of data, which is enough to store 12
hours and 15 minutes of memory data. See “To recall altitude measurement
data from memory” for details on how to recall memory data.

Important!

Further memory measurements become impossible
whenever memory is full. The message “FULL” on
the display indicates that memory is full. Always
check the amount of memory remaining before
starting memory measurements, and delete data if
necessary.

Remaining memory

Mode indicator

Altitude Graph
(unit: 10m)

*

1

Current altitude
(flashing)

*

2

Auto memory
indicator

Graphic display

A

B

C

D

E

AL

AUTO

ALTI

A

S

P

AL

AUTO

ALTI

C

m

A

S

Altitude alarm

*

3

Current altitude

Current time

Current temperature

ALTI

A

S

To store altitude data into memory (memory measurement)

1. In the Altimeter Mode, hold down 

D

 until

the watch emits a short beep, indicating
the start of the measurement.

The data measured when you first start

memory measurement is also stored into
memory.

The “AUTO” indicator flashes on the

display when you start memory
measurements. The “AUTO” indicator
continues to flash (indicating that
measurements continue) even if you
change modes.

Auto memory measurement cuts off automatically whenever there are 49
sets of data stored in memory. The 50th set of data measured when you
stop the measurement operation in step 2 below is also stored in memory.

2. To stop measurements at any point, hold down 

D

 again until the watch

emits a short beep.

A final measurement is taken when you switch memory measurement off,
and that data is also stored into memory. Such data is indicated by “FIN”
during the recall operation.

Setting a Reference Altitude

After you set a reference altitude, the watch automatically calculates the
difference between the current altitude and your preset value. The altitude
measurements produced by this watch are subject to error caused by
changes in atmospheric pressure. Because of this, we recommend that you
set the reference altitude during your climb whenever one is available.

1. In the Altimeter Mode, hold down 

A

 until

the display clears. After 4 or 5 seconds,
either “OFF” or the current reference
altitude value (if set) will start to flash.
The data flashes because it is 

selected.

The “OFF” indicator appears when the

factory setting is being used for the
calibration.

2. Press 

D

 to increase the current reference altitude value by 5 m or 

B

 to

decrease it. Holding down either button changes the value at high speed.

You can set the reference altitude within the range of –4000 m to 4000 m.

Pressing 

B

 and 

D

 at the same time returns to the “OFF” message.

3. After setting the reference altitude you want, press 

A

 to return to the

Altimeter Mode.

About the Altitude Alarm

The altitude alarm sounds for about five seconds whenever the current
altitude matches a preset value. You can press any button to stop the
alarm after it starts to sound.

Example

If you set the altitude alarm at 130 meters, it sounds when you pass the
130-meter mark on your way up and on your way back down.

To set the altitude alarm

1. In the Altimeter Mode, hold down 

A

 until the display clears. After 4 or 5

seconds, either “OFF” or the current reference altitude value (if set) will
start to flash. The data flashes because it is 

selected.

2. Press 

C

 to change the selection in the following sequence.

Reference Altitude Setting

Altitude Alarm Setting

3. Press 

C

 to select the altitude alarm

setting display (indicated by the “AL”
indicator).

4. Press 

D

 to increase the altitude alarm

value by 5 m or 

B

 to decrease it.

Holding down either button changes the
value at high speed.

You can set the altitude alarm setting

within the range of –4000 m to 4000 m.

Press 

B

 and 

D

 at the same time to

change the setting to “0”.

5. After setting the altitude alarm value, press 

A

 to return to the Altimeter

Mode.

To switch the altitude alarm on and off

1. In the Altimeter Mode, hold down 

A

 until the display clears. After 4 or 5

seconds, either “OFF” or the current reference altitude value (if set) will
start to flash. The data flashes because it is 

selected.

2. Press 

E

 to switch the altitude alarm on and off.

The indicator “

AL

” is shown on the display while the altitude alarm is on.

3. After switching the altitude alarm on or off, press 

A

 to return to the

Altimeter Mode.

If the altitude alarm is on, the altitude alarm indicator remains on the
display when you change to another mode.

A

B

C

D

E

P

AL

AUTO

ALTI

C

m

A

S

Auto memory indicator

A

B

C

D

E

AL

AUTO

ALTI

m

A

S

A

B

C

D

E

AL

AUTO

ALTI

m

A

S

Altitude alarm indicator

Summary of Contents for QW-1471

Page 1: ...e auto backlight function is automatically turned off approximately three hours after you turn it on Repeat the above procedure to turn the auto backlight function back on if you want Pressing E in any mode illuminates the display for about two seconds regardless of the auto backlight function on off setting About the Auto Backlight function While the Auto Backlight function is turned on the backl...

Page 2: ... this time the watch immediately starts a Digital Compass operation After about one second the direction that the 12 o clock position of the watch is pointing appears on the display If you do not perform any button operation for a few minutes the watch automatically returns to the mode you were in before entering the Digital Compass Mode 2 Press C to return to the mode you were in before entering ...

Page 3: ...tal Compass readouts You should perform bidirectional calibration whenever you change environments where you use the Digital Compass and whenever you feel that the Digital Compass is producing incorrect readings To perform bidirectional calibration 1 While in the Digital Compass Mode Normal Display hold down A until the upper display changes to show 1 At this time the magnetic north indicator flas...

Page 4: ...timeter Mode hold down D until the watch emits a short beep indicating the start of the measurement The data measured when you first start memory measurement is also stored into memory The AUTO indicator flashes on the display when you start memory measurements The AUTO indicator continues to flash indicating that measurements continue even if you change modes Auto memory measurement cuts off auto...

Page 5: ...n barometric pressure are caused by changes in the weather and temperature The following shows how to interpret the data that appears on the barometric pressure graph A rising graph generally means better weather A falling graph generally means deteriorating weather Note that if there are sudden changes in weather or temperature the graph line of past measurements may run off the top or bottom of ...

Page 6: ... measurements are taken automatically every five minutes regardless of what mode the watch is in Measured temperature values can be viewed in the Timekeeping or Altimeter Modes Temperature measurements are taken every five seconds for the first three minutes after you display the Timekeeping Mode s barometric pressure temperature display or after you enter the Altimeter Mode After that temperature...

Page 7: ... Question What causes the Digital Compass to produce different readings at the same location Answer Direction being measured is somewhere between two measurable directions N and NNW for example The Digital Compass is designed to indicate any one of 16 different directions If you move the 12 o clock position slightly to the left or right to move it off of the point between the two measurable direct...

Page 8: ...east Question How does the barometer work Answer Barometric pressure indicates changes in the atmosphere and by monitoring these changes you can predict the weather with reasonable accuracy Rising atmospheric pressure indicates good weather while falling pressure indicates deterioration weather conditions The atmospheric pressure that you see in the newspaper and on the TV weather report are measu...

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