To perform a countdown timer operation
CASIO Watch 5450 - countdown timer operation
Before starting a countdown timer operation, check to make sure that a countdown operation is not already in progress (indicated by the seconds counting down). If it is, press D to
stop it and then A to reset to the countdown start time.
An alarm sounds for fi ve seconds when the end of the countdown is reached. This alarm will sound in all modes. The countdown time is reset to its starting value automatically
when the alarm sounds.
To stop the alarm
Press any button.
Using the Alarm
You can set fi ve independent daily alarms. When a daily alarm is turned on, an alarm tone will sound for about 10 seconds each day when the time in the Timekeeping Mode reaches the
preset alarm time. This is true even if the watch is not in the Timekeeping Mode.
You can also turn on an Hourly Time Signal, which will cause the watch to beep twice every hour on the hour.
To enter the Alarm Mode
Use C to select the Alarm Mode (ALM) as shown on page E-11.
ALM will appear on the display for about one second. Next, the display will change to show an alarming number (AL1 through AL5) or the SIG indicator. The alarming number
indicates an alarm screen. SIG is shown when the Hourly Time Signal screen is on the display.
When you enter the Alarm Mode, the data you were viewing when you last exited the mode appears first.
To set an alarm time
1. In the Alarm Mode, use D to scroll through the alarm screens until the one whose time you want to set is displayed.
CASIO Watch 5450 - set an alarm time 2
2. Hold down A until the alarm time starts to fl ash. This is the setting screen.
• Before the alarm time starts to fl ash, the message SET Hold will appear on the display. Keep A depressed until SET Hold disappears and the alarm time starts to flash.
3. Press C to move the fl ashing between the hour and minute settings.
4. While a setting is fl ashing, use D (+) and B (–) to change it.
• When setting the alarm time using the 12-hour format, take care to set the time correctly as a.m. (no indicator) or p.m. (P indicator).
5. Press A to exit the setting screen.
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use D to select an alarm or the Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want is selected, press A to toggle it between on and off.
• The alarm on indicator (when any alarm is on) and the Hourly Time Signal on indicator (when the Hourly Time Signal is on) are shown on the display in all modes.
To stop the alarm
Press any button.
Illumination
The display of the watch is illuminated for easy reading in the dark.
To turn on illumination
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