Operation Guide 3184
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, until you turn the alarm off.
•Alarm and Hourly Time Signal operations are performed in accordance with the Timekeeping Mode time.
•To stop the alarm tone after it starts to sound, press any button.
•Performing any one of the operations below during a
Displaying the Timekeeping Mode setting screen Displaying the SNZ setting screen
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To use the countdown timer
Press D while in the Countdown Timer Mode to start the
Timer start time | countdown timer. |
•The countdown timer operation continues even if you
exit the Countdown Timer Mode.
• Press D while a countdown operation is in progress to pause it. Press D again to resume the countdown.
• To stop a countdown operation completely, first pause it (by pressing D), and then press A. This returns the countdown time to its starting value.
Current timer time
Illumination
To turn an alarm on and off
1. In the Alarm Mode, use D to select an alarm.
2. Press A to toggle it on (
) and off (xx).
•Turning on an alarm (AL1, AL2, AL3, AL4 or
SNZ) displays the alarm on indicator on its Alarm Mode screen.
• In all modes, the alarm on indicator is shown for any alarm that currently is turned on.
• The alarm on indicator flashes while the alarm is sounding.
• The snooze alarm indicator (SNZ) flashes while the snooze alarm is sounding and during the
Auto light switch on indicator
This watch has an EL
•The auto light switch must be turned on (indicated by the auto light switch on indicator) for it to operate.
•See “Illumination Precautions” for other important information about using illumination.
To illuminate the display manually
In any mode, press B to turn on illumination.
•The above operation turns on illumination regardless of the current auto light switch setting.
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 A to toggle it on (
) and off (xx).
• The Hourly Time Signal on indicator is shown on the display in all modes while this function is turned on.
Stopwatch
•You can use the procedure below to select either 1.5 seconds or 3 seconds as the illumination duration when you press B.
•Regardless of the watch’s current illumination duration setting, the display remains illuminated for about three seconds in the Diving Mode.
To specify the illumination duration
1. In the Timekeeping Mode, hold down A until the display contents start to flash. This is the setting screen.
2. Press C 10 times until the current illumination duration
setting ( 
or 
) appears.
3. Press D to toggle the setting between 
(approximately 1.5 seconds) and 
(approximately
3 seconds).
4.Press A to exit the setting screen.
Hours
Seconds
1/100 second
Minutes
The stopwatch lets you measure elapsed time, split times, and two finishes.
•The display range of the stopwatch is 23 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.
About the Auto Light Switch
Turning on the auto light switch causes illumination to turn on, 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 illumination to turn on.
•Wear the watch on the outside of your wrist.
Parallel to | More than 40° |
ground |
To measure times with the stopwatch
Elapsed Time
D | ➤ D | ➤ D | ➤ D | ➤ A |
Start | Stop | Stop | Clear | |
Split Time |
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D | ➤ A | ➤ A | ➤ D | ➤ A |
Start | Split | Split release | Stop | Clear |
| (SPL displayed) |
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Two Finishes |
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D | ➤ A | ➤ D | ➤ A | ➤ A |
Start | Split | Stop | Split release | Clear |
| First runner finishes. Second runner | Display time of |
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| Display time of first | finishes. | second runner. |
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| runner. |
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Countdown Timer
You can set the countdown timer within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero.
• All of the operations in this section are performed in the
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| Countdown Timer Mode, which you enter by pressing |
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| C. |
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| Countdown End Beeper |
Hours |
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| The countdown end beeper lets you know when the | |||
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| Minutes |
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| countdown reaches zero. The beeper stops after about 10 | ||
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| Seconds | ||
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| seconds or when you press any button. | ||
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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” to display it.
2.Press C to move the flashing between the hour and minute settings.
3.When a setting is flashing, use D (+) and B
•To specify a countdown start time of 24 hours, set 
.
4.Press A to exit the setting screen.
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 startle or distract others around you.
•When you are wearing the watch, make sure that its auto light switch is turned off before riding 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 B for about three 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.
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. |
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• The illustration shows how to position a |
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watch with a resin band. |
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• Note that charging efficiency drops when |
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any part of the solar cell is blocked by |
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clothing, etc. |
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• You should try to keep the watch outside of |
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your sleeve as much as possible. Charging |
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is reduced significantly even if the face is |
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covered only partially. |
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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. Make 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 |
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CASIO distributor about having it replaced. | 5 |
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