Casio 3150 Operation Manual Download Page 9

Operation Guide 3150

9

If you change your Home City to one that is within the same transmitter
area, the current DST setting will be retained. If you change to a city that is
outside your current transmitter area, DST will be turned off automatically.
Transmitter area city codes

TYO

TPE

, and 

SEL

HKG

BJS

HNL

ANC

LAX

DEN

CHI

NYC

YVR

YEA

MEX

,

YTO

YHZ

, and 

YYT

LON

PAR

BER

ATH

LIS

MAD

ROM

STO

, and 

MOW

All other city codes

4. When the setting you want is selected, press 

A

 to exit the setting screen.

 The 

DST

 indicator appears to indicate that Daylight Saving Time is turned on.

Reference

This section contains more detailed and technical information about watch
operation. It also contains important precautions and notes about the various
features and functions of this watch.

Graphic Area

The information shown in the graphic area depends on the current mode.

Mode

Timekeeping Mode
Rally Mode

Recall Mode
World Time Mode
Alarm Mode
Stopwatch Mode
CountdownTimer
Mode

Graphic Area

Timekeeping Mode seconds
Target time number/Measurement
time 1/10 seconds during
measurement
Record number
Timekeeping Mode seconds
No indication
Stopwatch Mode 1/10 seconds
CountdownTimer Mode seconds

Graphic Area

Button Operation Tone

The button operation tone sounds any time you
press one of the watch’s buttons. You can turn the
button operation tone on or off as desired.

Even if you turn off the button operation tone,
the alarms, the Hourly Time Signal, the
countdown alarm, and Rally Mode auto start all
operate normally.

To turn the button operation tone on and off

In any mode (except when a setting screen is on the display), hold down 

C

to toggle the button operation tone on (  not displayed) and off (  displayed).

Holding down 

C

 to turn the button operation tone on or off also causes the

watch’s current mode to change.

The   indicator is displayed in all modes when the button operation tone is
turned off.

Power Saving Function

When turned on, the Power Saving function
enters a sleep state automatically whenever the
watch is left in an area for a certain period where
it is dark. The table below shows how watch
functions are affected by the Power Saving
function.

Elapsed Time

in Dark

60 to 70 minutes

6 or 7 days

Display

Blank, with Power Saving
indicator (

PS

) flashing

Blank, with Power Saving
indicator (

PS

) not flashing

Operation

All functions enabled, except
for the display
Auto receive, beeper tone,
illumination, and display are
disabled.

Wearing the watch inside the sleeve of clothing can cause it to enter the
sleep state.

The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If
the watch is already in the sleep state when 6:00 AM arrives, however, it
will remain in the sleep state.

Power saving indicator

To recover from the sleep state

Perform any one of the following operations.

Move the watch to a well-lit area.

Press any button.

Angle the watch towards your face for reading.

To turn Power Saving on and off

1. In the Timekeeping Mode, hold down 

A

 until

the city code starts to flash, which indicates
the setting screen.

2. Press 

C

 nine times until the Power Saving

on/off screen appears.

3. Press 

D

 to toggle Power Saving on (

) and

off (

).

4. Press 

A

 to exit the setting screen.

The Power Saving indicator (

PS

) is on the display

in all modes while Power Saving is turned on.

ll

ll

l l

l l l l l ll

ll

lll

ll

ll

llll

lll

lll

On/Off status

Radio-controlled Atomic Timekeeping Precautions

Strong electrostatic charge can result in the wrong time being set.

The time calibration signal bounces off the ionosphere. Because of this,
such factors as changes in the reflectivity of the ionosphere, as well as
movement of the ionosphere to higher altitudes due to seasonal
atmospheric changes or the time of day may change the reception range of
the signal and make reception temporarily impossible.

Even if the time calibration signal is received properly, certain conditions
can cause the time setting to be off by up to one second.

The current time setting in accordance with the time calibration signal takes
priority over any time settings you make manually.

The watch is designed to update the date and day of the week
automatically for the period January 1, 2000 to December 31, 2099. Setting
of the date by the time calibration signal cannot be performed starting from
January 1, 2100.

This watch can receive signals that differentiate between leap years and
non-leap years.

Though this watch is designed to receive both time data (hour, minutes,
seconds) and date data (year, month, day), certain signal conditions can
limit reception to time data only.

If you are in an area where proper time calibration signal reception is
impossible, the watch keeps time within 

±

15 seconds a month at normal

temperature.

If you have problems with proper time calibration signal reception or if the
time setting is wrong after signal reception, check your current city code,
DST (summer time), and auto receive settings.

The Home City setting reverts to the initial default of 

TYO

 (Tokyo)

whenever the battery power level drops to Level 5 or when you have the
rechargeable battery replaced. If this happens, change the Home City to
the setting you want.

Transmitters

The time calibration signal received by this watch depends on the currently
selected Home City code.

When a U.S. time zone is selected, the watch receives the time calibration
signal transmitted from the United States (Fort Collins).

When a Japanese time zone is selected, the watch receives the time
calibration signal transmitted from Japan (Fukushima and Fukuoka/Saga).

When a European time zone is selected, the watch receives the time
calibration signals transmitted from Germany (Mainflingen) and England
(Anthorn).

When a China time zone is selected, the watch receives the time calibration
signals transmitted from China (Shangqiu City).

When your Home City is 

LIS

LON

MAD

PAR

ROM

BER

STO

ATH

,

MOW

 (which can receive both the Anthorn and Mainflingen signals), the

watch first tries to pick up the signal it last successfully received. If that fails,
it tries the other signal. For the first receive after you select your Home City,
the watch tries the nearest signal first (Anthorn for 

LIS

LON, 

Mainflingen

for 

MAD

PAR

ROM

BER

STO

ATH

, and 

MOW

).

Auto Return Features

If you leave a screen with flashing digits on the display for two or three
minutes without performing any operation, the watch exits the setting
screen automatically.

Scrolling

The 

B

 and 

D

 buttons are used in various modes and setting screens to

scroll through data on the display. In most cases, holding down these buttons
during a scroll operation scrolls at high speed.

Initial Screens

When you enter the Rally Mode, Recall Mode, World Time Mode, or Alarm
Mode, the data you were viewing when you last exited the mode appears first.

Timekeeping

Resetting the seconds to 

00

 while the current count is in the range of 30 to

59 causes the minutes to be increased by 1. In the range of 00 to 29, the
seconds are reset to 

00

 without changing the minutes.

The year can be set in the range of 2000 to 2099.

The watch’s built-in full automatic calendar makes allowances for different
month lengths and leap years. Once you set the date, there should be no
reason to change it except after you have the watch’s battery replaced.

The current time for all city codes in the Timekeeping Mode and World Time
Mode is calculated in accordance with the Coordinated Universal Time
(UTC) for each city, based on your Home City time setting.

World Time

The seconds count of the World Time is synchronized with the seconds
count of the Timekeeping Mode.

Illumination Precautions

The electro-luminescent panel that provides illumination loses power after
very long use.

Illumination may be hard to see when viewed under direct sunlight.

The watch may emit an audible sound whenever the display is illuminated.
This is due to vibration of the EL panel used for illumination, and does not
indicate malfunction.

Illumination turns off automatically whenever an alarm sounds.

Frequent use of illumination runs down the battery.

Summary of Contents for 3150

Page 1: ...g Function for more information About This Manual Depending on the model of your watch display text appears either as dark figures on a light background or light figures on a dark background All sample displays in this manual are shown using dark figures on a light background Button operations are indicated using the letters shown in the illustration Each section of this manual provides you with t...

Page 2: ...gnal transmitters and so certain conditions may cause problems with signal reception Calibration signal reception is disabled while a countdown timer target time operation is in progress Home City Code LON PAR BER ATH LIS MAD ROM STO MOW HKG BJS TPE TYO SEL HNL ANC LAX DEN CHI NYC YVR YEA MEX MIA YTO YHZ YYT Frequency 60 0 kHz 77 5 kHz 68 5 kHz 40 0 kHz 60 0 kHz 60 0 kHz Transmitter Anthorn Englan...

Page 3: ... reception date and time appear on the display along with the GET indicator 4 After manual receive is complete press D to return to the Timekeeping mode The watch also will exit the Receive Mode if you do not perform any button operation for about one or two minutes l l l l l l l l ll l l l l l l l ll l l Receiving Receive successful If the latest reception fails but a previous reception was succe...

Page 4: ... 20 10 9 8 7 6 5 4 3 2 1 and 0 seconds You can cancel the auto start countdown at any point and start time measurement special stage manually by pressing the D button You can cancel the countdown and return to the countdown start screen by pressing the B button while a countdown is in progress Auto start countdown seconds indicator Remaining auto start countdown time 36 seconds indicated here Spec...

Page 5: ...procedure to clear all of the measurement data records currently stored in watch memory 1 Use the D and B button to display the total measurement time screen 2 Hold down A until the display contents start to flash This is the setting screen 3 Press the D and B buttons at the same time to delete the records 4 Press the A button 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 ll l...

Page 6: ...ator ON To turn the Hourly Time Signal on and off 1 In the Alarm Mode use D to select the Hourly Time Signal SIG 2 Press B to toggle it on and off The Hourly Time Signal on indicator is shown on the display in all modes while this function is turned on Hourly time signal on indicator Stopwatch The stopwatch lets you measure elapsed time split times and two finishes The display range of the stopwat...

Page 7: ...cell so regular battery replacement is not required However after very long use the rechargeable battery may lose its ability to achieve a full charge If you experience problems getting the special rechargeable battery to charge fully contact your dealer or CASIO distributor about having it replaced Never try to remove or replace the watch s special battery yourself Use of the wrong type of batter...

Page 8: ...o move the flashing in the sequence shown below to select the other setting Seconds 12 24 Hour Format Hour Minutes DST Month Year City Code Day Power Saving The following steps explain how to configure timekeeping settings only 4 When the timekeeping setting you want to change is flashing use D or B to change it as described below Change the city code Cycle between Auto DST AvtA Daylight Saving Ti...

Page 9: ...setting to be off by up to one second The current time setting in accordance with the time calibration signal takes priority over any time settings you make manually The watch is designed to update the date and day of the week automatically for the period January 1 2000 to December 31 2099 Setting of the date by the time calibration signal cannot be performed starting from January 1 2100 This watc...

Page 10: ...urn the face of the watch towards you This does not necessarily indicate malfunction of the auto light switch You may notice a very faint clicking sound coming from the watch when it is shaken back and forth This sound is caused by mechanical operation of the auto light switch and does not indicate a problem with the watch Pago Pago Honolulu Anchorage Vancouver Los Angeles Edmonton Denver Mexico C...

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