Operation Guide 2895

Stopwatch

Battery

HoursSecondsMode Minutes indicator 1/100 second
The stopwatch lets you measure elapsed time, split times, and two finishes.The display range of the stopwatch is 99 hours, 59 minutes, 59.99 seconds.

The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.

The stopwatch measurement operation continues even if you exit the Stopwatch Mode.

Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement.

All of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing C.

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

Solar cell

face is pointing at a light source.

 

Note that charging efficiencydrops 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

To measure times with the stopwatch

Elapsed Time

D

D

D

D

B

Start

Stop

Re-start

Stop

Clear

Split Time

 

 

 

 

D

B

B

D

B

Start

Split

Split release

Stop

Clear

 

(SPL displayed)

 

 

 

Two Finishes

 

 

 

 

D

B

D

B

B

Start

Split

Stop

Split release

Clear

 

First runner

Second runner

Display time of

 

 

finishes.

finishes.

second runner.

 

 

Display time of

 

 

 

 

first runner.

 

 

 

Dual Time

Dual time

 

The Dual Time Mode lets you keep track of time in a

 

different time zone.

(Hour : Minutes Seconds)

The seconds count of the Dual Time is synchronized

 

 

 

 

 

 

with the seconds count of the Timekeeping Mode.

 

 

 

To set the Dual Time

 

 

 

1. Press Cto enter the Dual Time Mode.

 

 

 

2. Use A, B, and Dto set the Dual Time Mode time.

 

 

 

Each press of D(+) and B(–) changes the time

Mode

Timekeeping

setting in 30-minute increments.
Pressing Asets the Dual Time Mode to the same time

indicator

Mode time

as the Timekeeping Mode.

 

 

 

Backlight

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, which 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.

Battery Power Indicator

The battery power indicator on the display shows you the current status of the rechargeable battery’s power.

Battery power indicator

Level

Battery Power

Function Status

 

Indicator

 

 

 

 

 

 

 

1

 

 

 

 

All functions enabled.

 

 

2

 

 

 

 

All functions enabled.

 

 

3

Beeper tone, backlight,

 

 

 

 

 

 

 

 

display, and buttons are

 

 

 

 

 

 

 

 

 

 

 

 

 

disabled.

 

 

 

(Charge Soon Alert)

 

 

 

 

 

 

4

 

 

 

 

All functions, including

 

 

 

 

 

 

timekeeping, are disabled.

 

 

 

 

 

 

 

A

 

 

 

 

 

 

L-CH RGE

 

 

 

 

 

 

Auto light switch on indicator

The backlight uses an EL (electro-luminescent) panel that causes the entire display to glow for easy reading in the dark. The watch’s auto light switch automatically turns on the backlight 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 “Backlight Precautions” for other important information about using the backlight.

To turn on the backlight manually

In any mode, press Lto illuminate the display for about one second.

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

The flashingindicator 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 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 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 higher than

the actual battery level. The correct battery power indicator should appear after a

few minutes.

If you use the backlight or any of the alarm functions a number of times during a

short period, RECOVER appears on the display and the following operations
become disabled until battery power recovers.

About the Auto Light Switch

Turning on the auto light switch causes the backlight to turn on for about one second, 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 turn on the backlight under bright light.

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

Wear the watch on the outside of your wrist.
Parallel toMore than
ground40°

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 surprise or distract others around you.

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 Dfor about two seconds to toggle the auto light switch on (auto light switch on indicator displayed) and off (auto light switch on indicator not displayed).

The auto light switch on indicator is on the display in all modes while the auto light switch is turned on.

Backlight
Beeper tone

After some time, battery power will recover and RECOVER 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. Also note that allowing the watch to become very hot can cause its liquid crystal display to black out. The appearance of the LCD should become normal again when the watch returns to a lower temperature.

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 sunlightToo close to an incandescent lampUnder direct sunlight

Charging Guide

After a full charge, timekeeping remains enabled for up to about 11 months.

The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.

Exposure Level (Brightness)

Approximate Exposure Time

 

 

Outdoor Sunlight (50,000 lux)5 minutes

 

 

Sunlight Through a Window (10,000 lux)20 minutes

 

 

Daylight Through a Window on a Cloudy Day41 minutes
(5,000 lux)

 

 

 

Indoor Fluorescent Lighting (500 lux)7 hours

 

 

Since these are the specs, we can include all the technical details.Watch is not exposed to lightInternal timekeepingDisplay on 18 hours per day, sleep state 6 hours per day1 backlight operation (1.5 seconds) per day10 seconds of alarm operation per day1 countdown timer operation per dayStable operation is promoted by frequent charging.

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