User manual

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USER’S GUIDE 2514

Start Stop

Elapsed Time

➤

Re-start Clear

➤

Stop

➤

D ➤

Split Time

Start Split

➤

Split release Clear

➤

Stop

➤

Two Finishes

Start Split

➤

Stop

Clear

➤

Split release

➤

First runner

finishes.

Display time of

first runner.

Second runner

finishes.

Display time of

second runner.

(SPL displayed)

To measure times with the stopwatch

Battery

This watch is equipped with a solar cell and a rechargeable battery (secondary

battery) that is charged by the electrical power produced by the solar cell. The

illustration shown below shows how you should position the watch for charging.

Example: Orient the watch so its face

is pointing at a light source.

• Note that charging efficiency drops

when any part of the solar cell is

blocked by clothing, etc.

• The illustration shows how to position

a watch with a resin band.

Important!

• Storing the watch for long periods in an area where there is no light or wearing it in

such a way that it is blocked from exposure to light can cause rechargeable battery

power to run down. Be sure that the watch is normally exposed to bright light

whenever possible.

• This watch employs a solar cell that converts light into electricity that charges a built-

in rechargeable battery. Normally, the rechargeable battery should not need

replacement, but after very long use over a number of years, the rechargeable

battery may lose its ability to achieve a full charge. Should you notice problems with

getting the rechargeable battery to a full charge, contact your dealer or CASIO

distributor about having the rechargeable battery replaced.

• The rechargeable battery should be replaced with a CASIO-specified CTL1616

battery only. Other rechargeable batteries can cause damage to the watch.

• All data stored in memory is deleted, and the current time and all other settings

return to their initial factory defaults whenever battery power drops to Level 4 and

when you have the battery replaced.

• Turn on the watch’s Power Saving function and keep it in an area normally exposed

to bright light when storing it for long periods. This helps to keep the rechargeable

battery from going dead.

Solar cell

Battery Power Indicator

The battery power indicator on the display shows you the current status of the

rechargeable battery’s power.

Battery power indicator

Recover

indicator

Level

Battery Power

Indicator

Charge

Soon

Alert.

Function Status

All functions enabled.

Beeper tone, backlight,

display, and buttons are

disabled.

All functions, including

timekeeping, are disabled.

• The Level 3 charge warning indicator tells you that battery power is very low, and

that exposure to bright light for charging is required as soon as possible.

• At Level 4, all functions are disabled and settings return to their initial factory

defaults. Functions are enabled once again after the rechargeable battery is

charged, but you need to set the current time, date, and all other settings after the

battery is recharged to Level 2 from Level 4. Though the time appears on the display

after the battery is charged to Level 3, you will not be able to change the time setting

until the battery reaches Level 2.

• Leaving the watch in direct sunlight or some other very strong light source can

cause the battery power indicator to temporarily show a reading that is actually

higher than the battery level. The correct battery power indicator should appear after

a few minutes.

• If you use the backlight or the alarms a number of times during a short period, the

Recover indicator (

) appears on the display and the following operations become

disabled until battery power recovers.

Backlight

Beeper tone

Calibration reception

After some time, battery power will recover and the Recover indicator ( ) will

disappear, indicating that the above functions are enabled again.

Charging Precautions

Certain charging conditions can cause the watch to become very hot. Avoid leaving

the watch in the areas described below whenever charging its rechargeable battery.

Warning!

Leaving the watch in bright light to charge its rechargeable battery can cause it

to become quite hot. Take care when handling the watch to avoid burn injury.

The watch can become particularly hot when exposed to the following

conditions for long periods.

• On the dashboard of a car parked in direct sunlight

• Too close to an incandescent lamp

• Under direct sunlight

Charging Guide

After a full charge, all functions of the watch remain enabled for up to about six

months, the watch is used under the conditions described below.

Operating Conditions

•

Watch is not exposed to light

•

1 backlight operation (1.5 seconds) per day

•

10 seconds of alarm operation per day

•

3 times calibration reception per day

Charge Times

Exposing the watch to light for the periods shown below each day restores the power

used by the above operating conditions.

• Stable operation is promoted by frequent charging.

Recovery Times

The table below shows the amount exposure that is required to take the battery from

one level to the next.

Exposure Level (Brightness) Approximate

Exposure Time

Outdoor Sunlight (50,000 lux) 5 minutes

Sunlight Through a Window (10,000 lux) 24 minutes

Daylight Through a Window on a Cloudy Day (5,000 lux) 48 minutes

Indoor Fluorescent Lighting (500 lux) 8 hours

Exposure Level

(Brightness)

Outdoor Sunlight

(50,000 lux)

Sunlight Through a

Window (10,000 lux)

Daylight Through a

Window on a Cloudy

Day (5,000 lux)

Indoor Fluorescent

Lighting (500 lux)

Approximate Exposure Time

Level 4 Level 3 Level 2 Level 1

52 minutes 15 hours 2 hours

2 hours 67 hours 13 hours

4 hours ------------ ------------

37 hours ------------ ------------

▲

• The above exposure time values are all for reference only. Actual required exposure

times depend on lighting conditions.

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.

Auto Return Features

• If you leave the watch in the Alarm or Data Memory Mode for two or three minutes

without performing any operation, it automatically changes to the Timekeeping

Mode.

• If you leave a screen with flashing digits or a cursor on the display for two or three

minutes without performing any operation, the watch automatically saves anything

you have input up to that point and exits the setting screen.

Data and Setting Scrolling

The A 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 through the data at high speed.

Initial Screens

When you enter the Alarm or World Time Mode, the data you were viewing when you

last exited the mode appears first.

Time Calibration Signal Reception

• This watch is designed to receive a time calibration signal originating from one of the

three transmitters listed below.

Location

Fort Collins, Colorado

Fukushima, Japan

Fukuoka/Saga, Japan

Frequency

60kHz

40kHz

60kHz

Call Sign

WWVB

JJY

• When you select one of the city codes shown below as your Home City code, the

watch sets up automatically to receive from the applicable transmitter. Time

calibration signal reception is not possible whenever any other city code is specified

as the Home City code.

• When you select TYO as your Home City code, the watch automatically selects

either the Fukushima signal (40kHz) or the Fukuoka/Saga signal (60kHz),

depending on which is stronger.

• Note that when TYO (Japan) is selected as the Home City code, you can specify one

of two different time signal transmitters.

Home City Code

LAX, DEN, CHI, NYC

TYO

Received Transmitter

Fort Collins, Colorado

Fukushima or Fukuoka/Saga, Japan

(selectable)

• Signal reception is possible within a radius of about 2,000 miles (3,000 kilometers)

from the Fort Collins transmitter.

• At distances further than about 500 kilometers from the Fukushima and Fukuoka/

Saga transmitter, the signal may become weak and reception may be impossible

under certain conditions.

Fort Collins

2,000 miles

1,200 miles

1,000

kilometers

1,000

kilometers

Fukuoka/Saga

500

kilometers

Fukushima

500

kilometers