Operation Guide 5161

Stopwatch

The stopwatch lets you measure elapsed times.

• The display range of the stopwatch is 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.

 

 

 

 

 

 

 

 

• All of the operations in this section are performed in the

 

Seconds

Stopwatch Mode, which you enter by pressing B(page

Minutes

E-9).

To measure times with the stopwatch

 

 

C

➤ C

➤ C

➤ C

➤ C

Start

Stop

Re-start

Stop

(About 1 second)

 

 

 

 

Clear

E-40

 

 

 

 

Countdown Timer

 

 

 

 

 

 

You can set the countdown timer within a range of one to

 

 

 

 

 

 

100 minutes. An alarm sounds when the cowntdown

 

 

 

 

 

 

reaches zero.

 

 

 

 

 

 

• All of the operations in this section are performed in the

 

 

 

 

 

 

Countdown Timer Mode, which you enter by pressing

 

 

 

 

 

 

B (page E-9).

 

 

 

 

 

 

Countdown End Beeper

Minutes

 

 

 

 

The countdown end beeper lets you know when the

 

 

Seconds

countdown reaches zero. The beeper stops after about 10

 

 

seconds or when you press any button.

 

 

 

 

 

 

E-42

While an elapsed time operation is stopped, the display alternates between two screens that show the current minutes and seconds, and the 1/100 seconds count.

About 1 second

▲

▲

Seconds

1/100 seconds

Minutes

E-41

To configure the countdown timer

1.While the countdown start time is on the display in the Countdown Timer Mode, hold down A until the current countdown start time starts to flash, which indicates the setting screen.

•If the countdown start time is not displayed, use the procedure under “To use the countdown timer” (page E-44) to display it.

2.Press Cto scroll the minute setting value.

•To specify a countdown time of 100 minutes, set 00:00.

3.Press Ato exit the setting screen.

E-43

To use the countdown timer

 

 

 

Press Cwhile in the Countdown Timer Mode to start the

 

 

 

countdown timer.

 

 

 

• The countdown timer operation continues even if you

 

 

 

exit the Countdown Timer Mode.

 

 

 

• Press Cwhile a countdown operation is in progress to

 

 

 

pause it. Press C again to resume the countdown.

 

 

 

• To stop a countdown operation completely, hold down

Current timer time

C for about one second until the countdown time

 

 

 

returns to its starting value.

Power Supply

This watch is equipped with a solar cell and a rechargeable 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

Solar cell

pointing at a light source.

 

• The illustration shows how to position a

 

watch with a resin band.

 

• Note that charging efficiency drops when

 

any part of the solar cell is blocked by

 

clothing, etc.

 

•You should try to keep the watch outside of

your sleeve as much as possible. Charging is reduced significantly if the face is covered only partially.

E-44

E-45

 

 

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 exposed to bright light whenever possible.

•This watch uses a rechargeable battery to store power produced by the solar 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 rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced.

•Never try to remove or replace the watch’s rechargeable battery yourself. Use of the wrong type of battery can damage the watch.

•The current time and all other settings return to their initial factory defaults whenever battery power drops to Level 5 (pages E-47 and E-48) and when you have the battery replaced.

•Turn on the watch’s Power Saving function (page E-69) 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.

E-46

Battery Power Indicator and Recover Indicator

In the Timekeeping Mode, press B to enter the Battery/Receive Mode.

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

Level

Battery Power Indicator

Function Status

1

 

All functions enabled.

2

 

All functions enabled.

3

 

Watch enters Timekeeping Mode and second

 

 

hand jumps every two seconds. Auto and manual

 

(Charge Soon Alert)

receive, illumination, and beeper disabled.

4

 

All hands stop at 12 o’clock, all functions and

 

 

display indicators disabled.

5

 

All functions disabled.

 

 

E-47

• The flashing

indicator at Level 3 tells you that battery power is very low, and

 

 

 

• Performing illumination, or beeper operations during a

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

 

 

 

short period may cause

(recover) to appear on the

• At Level 5, all functions are disabled and settings return to their initial factory

 

 

 

display.

 

 

defaults. Once the battery reaches Level 2 after falling to Level 5, reconfigure the

 

 

 

After some time, battery power will recover and

current time, date, and other settings.

 

 

 

(recover) will disappear, indicating that the above

• The watch’s Home City code setting will change automatically to TYO (Tokyo)

 

 

 

functions are enabled again.

 

whenever the battery drops to Level 5. With this Home City code setting, the watch is

 

 

 

• If

(recover) appears frequently, it probably means

configured to receive the time calibration signals of Japan. If you are using the watch

Recover indicator

that remaining battery power is low. Leave the watch in

in North America or Europe, or China you will need to change the Home City code

 

 

 

bright light to allow it to charge.

setting to match your location whenever the battery drops to Level 5.

 

 

 

 

 

 

•Display indicators reappear as soon as the battery is charged from Level 5 to Level 2.

•Leaving the watch exposed to direct sunlight or some other very strong light source can cause the battery power indicator to show a reading temporarily that is higher than the actual battery level. The correct battery level should be indicated after a few minutes.

E-48

E-49