Casio 3144 Operation Manual Download Page 6

Operation Guide 3144

6

To set an alarm time

1. In the Alarm Mode, use 

D

 and 

B

 to scroll

through the alarm screens until the one whose
time you want to set is displayed.

2. Hold down 

A

 until the hour setting of the alarm time start to flash, which

indicates the setting screen.

This automatically turns on the alarm.

3. Press 

C

 to move the flashing between the hour and minute settings.

4. While a setting is flashing, use 

D

 (+) and 

B

 (–) to change it.

When setting the alarm time using the 12-hour format, take care to set
the time correctly as a.m. (no indicator) or p.m. (

P

 indicator).

5. Press 

A

 to exit the setting screen.

ALM-1

ALM-2

ALM-3

SIG

ALM-5

ALM-4

D

B

Alarm on indicator

Alarm Operation

The alarm sounds in all modes at the preset time for about 10 seconds, or
until you stop it by pressing any button.

To test the alarm

In the Alarm Mode, hold down 

D

 to sound the alarm.

To turn an alarm and the Hourly Time Signal on and off

1. In the Alarm Mode, use 

D

 and 

B

 to select an alarm or the Hourly Time

Signal.

2. When the alarm or the Hourly Time Signal you want is selected, press 

A

to turn it on and off.

 Indicates alarm is ON.

 Indicates Hourly Time Signal is ON.

The alarm on indicator (

) and the Hourly Time Signal on indicator ( ) are

shown on the display in all modes while these functions are turned on.

If any alarm is on, the alarm on indicator is shown on the display in all
modes.

Illumination

The display of the watch is illuminated using an
EL (electro-luminescent) panel for easy reading
in the dark. The watch’s auto light switch turns on
illumination automatically when you angle the
watch towards your face.

The auto light switch must be turned on

(indicated by the auto light switch on indicator)
for it to operate.

See “Illumination Precautions” for other
important information about using illumination.

Auto light switch
on indicator

To turn on illumination manually

Press 

L

 in any mode to illuminate the display for about one second.

The above operation turns on illumination regardless of the current auto
light switch setting.

Illumination is disabled while configuring sensor measurement mode
settings.

About the Auto Light Switch

Turning on the auto light switch causes illumination to turn on, whenever you
position your wrist as described below in any mode.
Note that this watch features a “Full Auto EL Light”, so the auto light switch
operates only when available light is below a certain level. It does not
illuminate the display under bright light.

The auto light switch is always disabled, regardless of its on/off setting,
when any one of the following conditions exists.

While an alarm is sounding
During sensor measurement

Moving the watch to a position that is parallel to the ground and then tilting
it towards you more than 40 degrees causes illumination to turn on.

   

 Wear the watch on the outside of your wrist.

lll

llll

ll

ll

Parallel to
ground

More than
40

°

When you are wearing the watch, make sure that its auto light switch
is turned off before riding on a bicycle or operating a motorcycle or
any other motor vehicle. Sudden and unintended operation of the auto
light switch can create a distraction, which can result in a traffic
accident and serious personal injury.

To turn the auto light switch on and off

In the Timekeeping Mode, hold down 

L

 for about three seconds to toggle the

auto light switch on (

A.EL

 displayed) and off (

A.EL

 not displayed).

The auto light switch on indicator (

A.EL

) is on the display in all modes while

the auto light switch is turned on.

The auto light switch turns off automatically whenever battery power drops
to Level 4

Illumination may not turn on right away if you raise the watch to your face
while a barometric pressure or altitude measurement operation is in
progress.

Questions & Answers

Question: How can the barometer be used to predict weather?

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 deteriorating weather
conditions.
The barometric pressures that you see in the newspaper and on the
TV weather report are measurements corrected to values measured
at 0 m sea level.

Question: How does the altimeter work?

Answer: Generally, air pressure and temperature decrease as altitude

increases. This watch bases its altitude measurements on
International Standard Atmosphere (ISA) values stipulated by the
International Civil Aviation Organization (ICAO). These values define
relationships between altitude, air pressure, and temperature.

0 m

500 m

1000 m

1500 m

2000 m

2500 m

3000 m

3500 m

4000 m

899 hPa

795 hPa

701 hPa

616 hPa

8.5

°

C

2

°

C

–4.5

°

C

–11

°

C

15

°

C

1013 hPa

About 6.5

°

per 1000 m

About 8 hPa per 100 m

About 9 hPa per 100 m

About 10 hPa per 100 m

About 11 hPa per 100 m

About 12 hPa per 100 m

Altitude

Air Pressure

Temperature

0 ft

2000 ft

4000 ft

6000 ft

8000 ft

10000 ft

12000 ft

14000 ft

25.84 inHg

22.23 inHg

19.03 inHg

44.7

°

F

30.5

°

F

16.2

°

F

59.0

°

F

29.92 inHg

About 3.6

°

per 1000 ft

About 0.15 inHg per 200 ft

About 0.17 inHg per 200 ft

About 0.192 inHg per 200 ft

About 0.21 inHg per 200 ft

Source:   International Civil Aviation Organization

Note that the following conditions will prevent you from obtaining accurate
altitude readings:

When air pressure changes because of changes in the weather
Extreme temperature changes
When the watch itself is subjected to strong impact

Warning!

Always make sure you are in a safe place whenever you are reading
the display of the watch using the auto light switch. Be especially
careful when running or engaged in any other activity that can result
in accident or injury. Also take care that sudden illumination by the
auto light switch does not startle or distract others around you.

There are two standard methods of expressing altitude: Absolute altitude and
relative altitude. Absolute altitude expresses an absolute height above sea
level. Relative altitude expresses the difference between the height of two
different places.

Height of building 130 m
(relative altitude)

Rooftop at an altitude of
230 m above sea level
(absolute altitude)

Sea Level

Summary of Contents for 3144

Page 1: ...se through the use of this watch About This Manual Button operations are indicated using the letters shown in the illustration Each section of this manual provides you with the information you need to perform operations in each mode Further details and technical information can be found in the Reference section Light The actual level at which some functions are disabled depends on the watch model ...

Page 2: ...he temperature value will reappear as soon as the measured temperature is within the allowable range In some areas barometric pressure is expressed in millibars mb instead of hectopascals hPa It really makes no difference because 1hPa 1mb You can select either hectopascals hPa or inchesHg inHg as the display unit for the measured barometric pressure and Celsius C or Fahrenheit F as the display uni...

Page 3: ...urrent altitude 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 measur...

Page 4: ...altitude within the range of 10 000 to 10 000 meters 32 800 to 32 800 feet Pressing D and B at the same time returns to OFF no reference altitude so the watch performs air pressure to altitude conversions based on preset data only 3 Press A to exit the setting screen l l l l l l l l l l l l l l l l l l l l l Altitude graph The altitude graph shows Altimeter Mode measurement results The vertical ax...

Page 5: ...n Daylight Saving Time and Standard Time if the displayed city code is GMT Note that the DST Standard Time setting affects only the currently displayed city code Other city codes are not affected DST indicator Stopwatch The stopwatch lets you measure elapsed time split times and two finishes The display range of the stopwatch is 23 hours 59 minutes 59 99 seconds The stopwatch continues to run rest...

Page 6: ...n a bicycle or operating a motorcycle or any other motor vehicle Sudden and unintended operation of the auto light switch can create a distraction which can result in a traffic accident and serious personal injury To turn the auto light switch on and off In the Timekeeping Mode hold down L for about three seconds to toggle the auto light switch on A EL displayed and off A EL not displayed The auto...

Page 7: ...nt status of the rechargeable battery s power The flashing LOW indicator at Level 3 tells you that battery power is very low and that exposure to bright light for charging is required as soon as possible At Level 5 all functions are disabled and settings return to their initial factory defaults Once the battery reaches Level 2 after falling to Level 5 reconfigure the current time date and other se...

Page 8: ...the Power Saving on off screen appears 3 Press D to toggle Power Saving on ON and off OFF 4 Press A to exit the setting screen The Power Saving on indicator PS is on the display in all modes while Power Saving is turned on l l l l l l l l l l l l l l l l l l Power Saving on indicator Timekeeping Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to b...

Page 9: ... F Barometric Pressure 1 hPa 0 05 inHg Pressing D and B at the same time returns to the factory calibration OFF 4 Press A to return to the Barometer Thermometer Mode screen l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l To select the temperature altitude and barometric pressure units 1 Enter the Timekeeping Mode 2 Hold down A until the city code starts to flash which indic...

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