Casio 2610 User Manual

USER’S GUIDE 2610

About This Manual

• Button operations are indicated using the letters shown in the illustration.

• Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.

General Guide

• Press C to change from mode to mode.

• In any mode, press B to illuminate the display.

Timekeeping Mode

Press .

Alarm Mode Stopwatch ModeCountdown Timer

Timekeeping

PM indicator

Day of week

Month – Day

Hour : Minutes Seconds

3. When the setting you want to change is flashing, press D to change it as described below.

To change this setting

Seconds Hour, Minutes, Year, Month, Day

• Pressing D while the seconds are in the range of 30 to 59 resets them to 00 and

adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged.

4. Press A to exit the setting screen.

• The day of the week is automatically displayed in accordance with the date (year,

month, and day) settings.

• The year can be set in the range of 2000 to 2099.

• The watch’s built-in full automatic calendar automatically makes allowances for

different month lengths and leap years. Once you set the date, there should be no reason to change it except after you have the watch’s battery replaced.

To toggle between 12-hour and 24-hour timekeeping

In the Timekeeping Mode, press D to toggle between 12-hour timekeeping and 24-hour timekeeping.

• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for

times in the range of noon to 11:59 p.m. and no indicator appears to the left of the hour digits for times in the range of midnight to 11:59 a.m.

• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without

any indicator.

• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is

applied in all other modes.

Use the Timekeeping Mode to set and view the current time and date.

To set the time and date

1. In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen.

2. Press C to move the flashing in the sequence shown below to select other settings.

Seconds Hour

Day Month

Perform this button operation

Press D to reset to 00. Press D to increase the setting.

Minutes

Year

Alarms

Month – Day

Hour : Minutes

Alarm number

Alarm Types

The alarm type is determined by the settings you make, as described below.

• Daily alarm

Set the hour and minutes for the alarm time. This type of setting causes the alarm to sound everyday at the time you set.

• Date alarm

Set the month, day, hour and minutes for the alarm time. This type of setting causes the alarm to sound at the specific time, on the specific date you set.

• 1-Month alarm

Set the month, hour and minutes for the alarm time. This type of setting causes the alarm to sound everyday at time you set, only during the month you set.

• Monthly alarm

Set the day, hour and minutes for the alarm time. This type of setting causes the alarm to sound every month at time you set, on the day you set.

You can set up to five independent multi-function alarms with hour, minutes, month, and day. When an alarm is turned on, the alarm tone sounds when the alarm time is reached. One of the alarms can be configured as a snooze alarm or a one-time alarm, while the other four are one-time alarms. You can also turn on an Hourly Time Signal that causes the watch to beep twice every hour on the hour.

• There are five alarms numbered

configure Alarm alarm. Alarms alarms only.

• Alarm settings (and an Hourly Time Signal setting) are

available in the Alarm Mode, which you enter by pressing C.

as a snooze alarm or a one-time

through 5 can be used as one-time

through 5. You can

• In any mode, hold down C for about two seconds to return to the Timekeeping Mode.

Mode

To set an alarm time

• To set a one-time alarm, display one of the screens indicated by an alarm number

from

through 5. To set the snooze alarm, display the screen indicated by 1.

2. After you select an alarm, hold down A until the hour setting of the alarm time starts to flash, which indicates the setting screen.

• This operation automatically turns on the alarm.

3. Press C to move the flashing in the sequence shown below to select other settings.

4. While a setting is flashing, press D to increase it.

• To set an alarm that does not include a month (Daily alarm, Monthly alarm),

set

x for the month. Press D until the x mark appears (between 12 and 1) while

month setting is flashing.

• To set an alarm that does not include a day (Daily alarm, 1-Month alarm),

set

xx for the day. Press D until the xx mark appears (between the end of the

month and 1) while the day setting is flashing.

• When setting the alarm time using the 12-hour format, take care to set the time

correctly as a.m. or p.m. (P indicator).

5. Press A to exit the setting screen.

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 or change it to a onetime alarm.

• To stop the alarm tone after it starts to sound, press any button.

• Performing any one of the following operations during a 5-minute interval between

snooze alarms cancels the current snooze alarm operation.

Displaying the Timekeeping Mode setting screen Displaying the alarm

To test the alarm

• In the Alarm Mode, hold down D to sound the alarm.

To turn Alarms 2 through 5 and the Hourly Time Signal on and off

Hourly time signal on indicator

Alarm on indicator

To select the operation of Alarm

1. In the Alarm Mode, use D to select Alarm1.

2. Press A to cycle through the available settings in the sequence shown below.

• The snooze on indicator (SNZ) and Alarm1 on indicator are displayed in all modes.

• The snooze on indicator (SNZ) flashes during the 5-minute intervals between

alarms.

• The alarm indicator (Alarm sounding.

Snooze on indicator (SNZ) and Alarm

Press .

1. In the Alarm Mode, use D to scroll through the alarm screens until the one whose time you want to set is displayed.

Press .

Hour Minutes

setting screen

1. In the Alarm Mode, use D to select a one-time alarm (alarm number

:00

(

2. Press A to toggle it on and off.

• The on/off status of Alarms

Time Signal is shown by indicators along the bottom of the displays.

• The alarm on indicators and Hourly time Signal on

indicator are displayed in all modes.

• While an alarm is sounding, the applicable alarm on

indicator flashes on the display.

One-time alarm on

on and/or snooze on) flashes while the alarm is

Month Day

through 5) or the Hourly Time Signal

Snooze alarm on

Dual Time Mode

through 5 and the Hourly

on indicator

Alarm off

USER’S GUIDE 2610

Countdown Timer

Seconds

Hour

Minutes

• When the end of the countdown is reached and auto-repeat is turned off, the alarm sounds for 10 seconds or until you stop it by pressing any button. The countdown time is automatically reset to its starting value after the alarm stops.

• The countdown timer measurement 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 completely stop a countdown operation, first pause it (by pressing D), and then press A. This returns the countdown time to its starting value.

To set the countdown start time

To turn auto-repeat on and off

Auto-repeat indicator

The countdown timer can be set within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero.

• You can also select auto-repeat, which automatically restarts the countdown from the original value you set whenever zero is reached.

• Countdown timer functions are available in the Countdown Timer Mode, which you enter by pressing C.

To use the countdown timer

Press D while in the Countdown Timer Mode to start the countdown timer.

1. In the Countdown Timer Mode, hold down A until the

hours setting of the countdown start time starts to flash, which indicates the setting screen.

2. Press C to move the flashing between the hours and

minutes settings.

3. While a setting is flashing, use D to change it.

• To set the starting value of the countdown time to 24 hours, set

4. Press A to exit the setting screen.

1. In the Countdown Timer Mode, hold down A until the hours setting of the countdown start time starts to flash, which indicates the setting screen.

2. Press B to toggle auto-repeat on ( off (

• Note that pressing B in the above operation also turns

on the backlight.

• When the end of the countdown is reached while

auto-repeat is on, the alarm sounds, but the countdown restarts from the beginning without stopping. You can stop the countdown by pressing D and manually reset to the start time by pressing A.

• The auto-repeat indicator appears in the Countdown

Timer Mode only.

0:00

not displayed).

displayed) and

Stopwatch

1/100 second

Hour

Minutes

To measure times with the stopwatch

Elapsed time

Start Stop Re-start Stop Clear

Split time

Start

Two Finishes

Start

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

Seconds

elapsed time measurement.

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

Stopwatch Mode, which you enter by pressing C.

Split (SPL displayed)

Split Stop Split release Clear

First runner finishes. Display time of first runner.

Split release Stop Clear

Second runner finishes.

Display time of second runner.

Dual Time

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

• In the Dual Time Mode, the seconds count is synchronized with the seconds count of the Timekeeping Mode.

To set the Dual Time

Hour : Minutes Seconds

1. Press C to enter the Dual Time Mode.

2. In the Dual Time Mode, hold down A until the hour setting starts to flash, which indicates the setting screen.

3. Press C to change the selection in the following sequence.

Hour Minutes

4. Press D to increase the setting.

5. Press A to exit the setting screen.

Backlight

The backlight uses an LED (light-emitting diode) and a

Auto light switch indicator

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.

• Be sure to wear the watch on the outside of your left wrist while using the auto light switch.

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.

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 any mode, hold down B for about two seconds to toggle the auto light switch on (Auto light switch indicator displayed) or off (Auto light switch indicator not displayed).

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

• In order to protect against running down the battery, the auto light switch automatically turns off approximately six hours after you turn it on. Repeat the above procedure to turn the auto light switch back on if you want.

light guide panel that cause 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 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 B to illuminate the display for about one second.

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

Parallel to ground More than 40 °

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 a screen with flashing digits for two or three minutes without performing any operation, the watch automatically saves any settings you have made up to that point and exits the setting screen.

Data and Setting Scrolling

The D button is used to scroll through setting screen data on the display. Holding down this button during a scroll operation scrolls through the data at high speed.

Backlight Precautions

• The illumination provided by the backlight may be hard to see when viewed under direct sunlight.

• The backlight automatically stops illuminating whenever an alarm sounds.

• Frequent use of the backlight shortens the battery life.

Auto light switch precautions

More than 15 degrees too high

• Static electricity or magnetic force can interfere with proper operation of the auto light switch. If the backlight does not light, try moving the watch back to the starting position (parallel with the ground) and then tilt it back toward you again. If this does not work, drop your arm all the way down so it hangs at your side, and then bring it back up again.

• Under certain conditions, the backlight may not light until about one second after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the backlight.

• Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light switch to operate when it is not needed, which shortens battery life. If you want to wear the watch on the inside of your wrist, turn off the auto light switch feature.

• The backlight may not light if the face of the watch is more than 15 degrees above or below parallel. Make sure that the back of your hand is parallel to the ground.

• The backlight turns off in about one second, even if you keep the watch pointed towards your face.