Casio 2931 Operation Manual Download Page 11

Operation Guide 2931

11

12.

While the Hour, Minutes,
Year, Month, or Day
setting is flashing, use 

B

B

B

B

B

(–) and 

D

D

D

D

D

 (+) to change it.

Holding down either button
scrolls the setting at high
speed.

Repeat the above steps as many times as necessary to
select each setting and change it as required.

When setting the hour, make sure you specify AM (no indicator) or
PM (P) correctly when using 12-hour timekeeping, or that you
specify the correct 24-hour time.

You can set the year within the range of 2000 to 2099.
The day of the week is set automatically in accordance with the
date you set.

The watch makes adjustments for leap years and month lengths
automatically.

13.

When all of the settings are the way you want, press
the 

A

A

A

A

A

 button to exit the setting screen.

The display also will exit the setting screen automatically if
you do not perform any operation for about two or three
minutes.

10.

While the 12/24-hour
setting is selected, press
the 

D

D

D

D

D

 button to toggle

the timekeeping format
between 12-hour (“12H”
indicator) and 24-hour
(“24H” indicator).

11.

While the seconds are
selected, press the 

D

D

D

D

D

button to reset them to 00
in accordance with the
time signal on the radio,
TV, etc.

Pressing 

D

 while the

seconds are in the range of
30 to 59 resets them to 00
and adds 1 to the minutes. In
the range of 00 to 29, the
minutes are unchanged.

While the seconds are
flashing, you can also press
the 

B

 button to change the

illumination duration. See “To
specify the illumination
duration” for more information.

From here you can use the

C

 button to select the

settings shown below. Each
press of 

C

 causes the

applicable setting to flash.

Power Saving

Beep/Vibration

Temperature Calibration

4.

While the Beep/Vibration
setting is flashing, press
the 

D

D

D

D

D

 button to toggle

between “BEEP” (beeper
alert) and “VIB” (vibration
alert).

The VIB (vibration) indicator
appears when vibration alert it
selected. No indicator is
displayed while beep alert is
selected.

5.

While Temperature
Calibration is selected,
use the 

D

D

D

D

D

 (+) and 

B

B

B

B

B

 (–)

buttons to change the
setting in 0.1

o

C steps.

Holding down either button
scrolls the setting at high
speed.

You range of the temperature
calibration setting is –9.9

o

C to

+9.9

o

C.

The temperature sensor is calibrated at the factory, and
further calibration normally is not required. Perform the above
operation only when you find that a temperature reading taken
with another accurate instrument is very different from the
reading produced by your watch. Take care that you perform
the calibration operation correctly. Using the wrong value can
make it impossible to correctly measure temperatures.

6.

While the Power Saving
setting is selected, press
the 

D

D

D

D

D

 button to toggle it

ON and OFF.

Turning on Power Saving
causes the Power Saving
indicator to appear on the
setting screen.

Beep/Vibration

Vibration Indicator

Temperature

(Decrease)

(Increase)

Power Saving Indicator

You can use the following procedure to set the current time and
date of the Home City that you have selected in the Timekeeping
Mode.

Always use the Timekeeping Mode to set and adjust the current
time and date settings.

You can also turn Power Saving on and off while setting the time
and date.

To configure Home City settings

1.

In the Timekeeping Mode,
hold down the 

A

A

A

A

A

 button

for about two seconds
until the city code and
GMT differential start to
flash. This is the setting
screen.

2.

Use the 

D

D

D

D

D

 (+) and 

B

B

B

B

B

 (–)

buttons to scroll through
the city codes until the
one you want to use as
your Home City is
displayed.

D

 scrolls eastward, while 

B

scrolls westward. See “GMT
Differentials” for a list of city
codes.

Holding down either button changes the setting at high speed.

You can also press the 

C

 button so “AREA” is flashing, and

select a tide/Moon graph area. See “To configure location
settings”.

3.

Press the 

A

A

A

A

A

 button.

This causes VIB (vibration
alert) or BEEP (beep alert) to
flash on the display.

TYO = Tokyo

(Back) 

(Forward)

City Code

GMT Differential

Hour Minutes

Year

Month, Day

(Decrease)

(Increase)

Resets to 00.

12/24-hour Timekeeping

7.

Press the 

A

A

A

A

A

 button.

This displays the DST setting.

8.

From here you can use the

C

C

C

C

C

 button to select the

settings shown below.
Each press of 

C

C

C

C

C

 causes

the applicable setting to
flash.

Use the 

C

 button to cycle

through the time and date
settings shown below. Each
press of 

C

 causes the

applicable setting to flash.

Summer Time

12/24-hour

Hour

Minutes

Month

Year

Day

Seconds

9.

While the Summer Time
setting is selected, use the

D

D

D

D

D

 button to cycle through

the settings described
below.

AUTO

This setting enables the auto summer time setting, which
turns summer time on or off in accordance with the received
time calibration signal.

This setting uses Japan summer time data when OSA or
TYO is selected as the Home City, and U.S. summer time
data when NYCCHIDEN, or LAX is selected as the
Home City.

OFF

This setting turns off summer time, and displays the current
time normally.

• 

O

N

This setting turns on summer time.

Selecting this setting displays the DST indicator, and
advances the current time setting by one hour.

• 

Note that the above setting toggles between “OFF” and “ON”
when any city code other than HKGTYOOSANYCCHIDEN,
LAXANC, or HNL is selected as the Home City.

Setting the Home City Time and Date

Summary of Contents for 2931

Page 1: ... can cause frequent display illumination Keep your watch exposed to light Each press of the C C C C C button sounds a confirmation tone and cycles through available modes in the sequence shown below The watch will revert to the Timekeeping Mode automatically if you leave it in the Tide Moon Graph Mode or Alarm Mode for about two or three minutes without performing any operation Graphic Area Day of...

Page 2: ...tions will still remain disabled at this time and you should continue to expose the watch to light so the battery can charge up the Level 2 or Level 1 Recover Indicator Power Supply Charging Guide Starting from a full charge the watch should be able to continue operating for about eight months without further charging under the example conditions described below Example Daily Use Illumination 1 5 ...

Page 3: ...el with the ground 1 1 1 1 1 2 2 2 2 2 At least 40 degrees An EL electro luminescent panel is used to illuminate the display of the watch for easy reading in the dark The full auto light switch automatically turns on illumination whenever you angle the watch towards your face for viewing while it is dark To turn on illuminination manually In any mode press the B B B B B button This turns on illumi...

Page 4: ...e above URL is subject to change Reception Ranges This watch is designed to receive the standard time calibration signal of Japan JJY or of the United States WWVB depending on its current Home City setting For information about selecting a Home City see Setting the Home City Time and Date For information about city codes see the GMT Differentials Home City TYO OSA LAX DEN CHI NYC Transmitter Eithe...

Page 5: ...ago or NYC New York is selected as the Home City 1 In the Timekeeping Mode press the D D D D D button to display the last reception time and date The watch also will return to the Timekeeping Mode automatically if you do not perform any operation for about two or three minutes 2 Hold down the A A A A A button for about two seconds until the current On OFF setting starts to flash This is the settin...

Page 6: ...ad which clears the current settings The following are the watch s factory default settings Home City Tokyo GMT Differential 9 0 Area SHIBAURA To configure location settings 1 In the Timekeeping Mode hold down the A A A A A button for about two seconds until the city code and GMT differential start to flash This is the setting screen City Code GMT Differential Back Forward Forward GMT Differential...

Page 7: ...SAIPAN USA TRUK MICRONESIA KAVIENG PAPUA NEW GUINEA NOU NOUMEA NEW CALEDONIA PORT VILA PACIFIC OCEAN WLG WELLINGTON NEW ZEALAND GISBORNE NEW ZEALAND AUCKLAND NEW ZEALAND RAGLAN NEW ZEALAND SUVA FIJI ISLANDS TBU NUKUALOFA TONGA NEIAFU TONGA Using the Moon Graph Moon Phase Using the Tide Graph To view the current tide graph The tide graph appears on the Timekeeping Mode and Tide Moon Graph Mode scre...

Page 8: ...ugh the city codes Holding down the D button scrolls at high speed City Code World Time Using World Time Use the C C C C C button to enter the World Time Mode as shown under Modes and Display Screens Using Summer Time DST Summer time or Daylight Saving Time DST as is it is called in some countries calls for setting clocks ahead one hour during the summer season Note that the use of summer time dep...

Page 9: ... as shown under Modes and Display Screens Progress Alert The watch beeps or vibrates every second of the last 10 seconds before reaching the reset time The watch beeps or vibrates at the top of each minute following the reset time The watch beeps or vibrates 30 seconds before the end of the countdown is reached Time Up Alarm The watch beeps or vibrates every second of the last 10 seconds of the co...

Page 10: ...and 4 to set the time you want When setting the hour make sure you specify AM no indicator or PM P correctly when using 12 hour timekeeping or that you specify the correct 24 hour time The same 12 hour 24 hour format you select for the Timekeeping Mode time is also applied in the Alarm Mode 5 When the alarm time is the way you want press the A A A A A button to exit the setting screen The display ...

Page 11: ...ectly Using the wrong value can make it impossible to correctly measure temperatures 6 While the Power Saving setting is selected press the D D D D D button to toggle it ON and OFF Turning on Power Saving causes the Power Saving indicator to appear on the setting screen Beep Vibration Vibration Indicator Temperature Decrease Increase Power Saving Indicator You can use the following procedure to se...

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