Casio QW-1471 Manual Download Page 5

— 7 —

Current
altitude

Altitude
alarm
setting

Current
altitude

Altitude
alarm
setting

Segments in the graphic display darken as you approach the altitude
alarm setting. If you ascend away from the altitude alarm setting, the
darkened segments are cleared from the graphic display.

All 10 segments are darkened when you reach or exceed the altitude set
for the altitude alarm.

If your current altitude is higher than that registered for the initial
measurement, none of the graphic display segments are darkened.

To recall altitude measurement data from memory

1. Use 

C

 to enter the Data Recall Mode.

2. Press 

D

 to scroll forward through the stored data items or 

B

 to scroll

backward.

Holding down either button scrolls through the data items at high speed.

The data item that is displayed when you exit the Data Recall Mode is still
displayed the next time you enter the Data Recall Mode.

*

It shows nine segments between the maximum and minimum altitudes
achieved during a memory measurement. The segments indicate how
altitude changed during the measurement.

The maximum and minimum altitudes achieved during a measurement
operation are also stored in memory. When the maximum altitude is
recalled, the message “MAX” alternates every second with the date in the
upper display. The message “MIN” appears for the minimum altitude.

Measured data is stored in memory even if an error occurs during the
measurement. For details on errors, see “Warning Indicators”.

D

B

D

B

D

B

D

B

Altitude graph

Altitude

Temperature

Mode indicator

*

A

B

C

D

E

AUTO

RECALL

C

m

A

S

Date

AUTO

RECALL

C

m

A

S

P

AUTO

RECALL

C

m

A

S

[ Initial Display ]

[ Final Display ]

BAROMETER FUNCTIONS

This watch uses a pressure sensor to measure atmospheric pressure. This
sensor can be calibrated.

Important!

The barometer that is built into this watch measures changes in
atmospheric pressure, which you can then apply to your own weather
predictions. It is not intended for use as a precision instrument in official
weather prediction or reporting applications.

Example barometer applications

Before going mountain climbing, you can take readings to find out the
probable upcoming weather.

You can predict the weather for golf or other outdoor activities.

About barometric measurements

The barometer automatically takes measurements every two hours (starting
from midnight), regardless of what mode you are in. The last measurement
result, along with the current temperature is displayed in the Timekeeping Mode.

Understanding the barometer display

1. Use 

C

 to enter the Timekeeping Mode.

2. Press 

D

 to display the Barometric Pressure/Temperature Display.

*

1 The barometric pressure graph shows the barometric readings for the

past 26 hours. The flashing point on the right of the display is the point
for the last measurement.

*

2 Some countries call to this unit as hecto-pascal (hPa), while other

countries call it millibars (mb). It really makes no difference, because
1 hPa = 1 mb. In this manual, we will refer to hPa/mb or hPa (mb).

*

3 The display shows “– – – – hPa/mb” if a measured value falls outside

the range of 610 hPa/mb to 1100 hPa/mb. The normal display will return
as soon as the pressure returns within the allowable range.

Using the barometric pressure graph

Changes in 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 the display. The
entire graph will become visible once atmospheric
conditions stabilize.

The following conditions cause the barometric pressure measurement to be
skipped, with the corresponding point on the barometric pressure graph
being left blank.

Barometric reading that is out of range (610 hPa/mb to 1100 hPa/mb)

Sensor malfunction

Dead battery

A

B

C

D

E

P

C

hPa mb

A

S

Temperature

Barometric pressure graph
(unit: 1 hPa/mb

*

2

)

*

1

Last measurement
(updated every 2 hours)

*

3

[ Barometric Pressure/Temperature Display ]

Important!

You cannot delete data while a memory measurement is in progress
(“AUTO” flashing on the display).

1. In the Recall Mode, display the initial

data of the set of memory data you want
to delete.

Display the maximum altitude or the

minimum altitude if you want to delete it.

2. To clear the data, hold down 

A

 until the

watch emits a long beep (and until “CLR”
stops flashing on the display).

A

B

C

D

E

AUTO

RECALL

C

m

A

S

To delete data from memory

The following procedure deletes a entire set (from start measurement to
end measurement) of memory data.

About the graphic display

In the Altimeter Mode, the graphic display normally indicates the counting of
the current time’s seconds. When a memory measurement operation is being
performed while the altitude alarm is on, however, the watch automatically
divides the graphic display into 10 equal parts. Each part represents 1/10 of
the difference between the first altitude measured by the memory
measurement operation and the value you set as the altitude alarm. The
graphic representation gives you some idea of how much farther you must
go to reach the altitude indicated by the altitude alarm setting.

The graphic representation described below is not shown on the display if
the altitude alarm is switched off.

Example:

When the initially measured altitude is less than the altitude
alarm setting.

The graphic display would appear as
illustrated here when your current altitude is
700 meters, after you set the altitude alarm
for 1000 meters and the initial
measurement was 0 meters. Note that
seven segments of the graph are darkened
because you are 7/10 of the way to the
value set for the altitude alarm.

Segments in the graphic display darken as you approach the altitude
alarm setting. If you descend away from the altitude alarm setting, the
darkened segments are cleared from the graphic display.

All 10 segments are darkened when you reach or exceed the altitude set
for the altitude alarm.

If your current altitude is lower than that registered for the initial
measurement, none of the graphic display segments are darkened.

Example:

When the initially measured altitude is greater than the altitude
alarm setting.

The graphic display would appear as
illustrated here when your current altitude is
1500 meters, after you set the altitude
alarm for 1000 meters and the initial
measurement was 2000 meters. Note that
five segments of the graph are darkened
because you are 5/10 of the way to the
value set for the altitude alarm.

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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