CASIO 5208 Operation Guide

Getting Acquainted

Congratulations on your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully.

Keep the watch exposed to bright light

The electricity generated by the solar cell of the watch is stored by a built-in battery. Leaving or using the watch where it is not exposed to light causes the battery to run down. Make sure the watch is exposed to light as much as possible.

• When you are not wearing the watch on your wrist, position the face so it is pointed at a source of bright light.
• You should try to keep the watch outside of your sleeve as much as possible. Charging is reduced significantly if the face is only partially covered.

Solar cell: Converts light to electrical power.

Bright Light: Electrical energy.

Battery charges in the light. Battery discharges in the dark.

Charging Levels:

• Level 1: All functions enabled.
• Level 2: All functions enabled.
• Level 3: Charge
• Level 4: Rechargeable battery

Discharging Levels:

• Level 1: Some or all functions disabled.
• Level 2: Some or all functions disabled.
• Level 3: Some or all functions disabled.
• Level 4: Some or all functions disabled.

The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will result in some watch functions being disabled. If the battery goes dead, you will have to re-configure watch settings after recharging. To ensure normal watch operation, be sure to keep it exposed to light as much as possible.

The actual level at which some functions are disabled depends on the watch model. Be sure to read "Power Supply" (page E-33) for important information you need to know when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch's Power Saving function has turned off the display to conserve power. See "Power Saving Function" (page E-46) for more information.

About This Manual

Depending on the model of your watch, display text appears either as dark figures on a light background, or light figures on a dark background. All sample displays in this manual are shown using dark figures on a light background.

Button operations are indicated using the letters [A], [B], [C], [D] 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.

Procedure Lookup

The following is a handy reference list of all the operational procedures contained in this manual.

1. To set the current digital time and date .............................................................. E-11
2. To change the Daylight Saving Time (summer time) setting ............................ E-15
3. To view the time in another city ........................................................................... E-18
4. To toggle a city code time between Standard Time and Daylight Saving Time ............................................................................... E-18
5. To swap your Home City and World Time City ................................................... E-19
6. To set an alarm time ............................................................................................. E-21
7. To turn an alarm on and off .................................................................................. E-23
8. To turn the Hourly Time Signal on and off .......................................................... E-23
9. To configure the countdown timer ...................................................................... E-25
10. To use the countdown timer ................................................................................ E-27
11. To measure times with the stopwatch ................................................................ E-30
12. To illuminate the display ...................................................................................... E-31
13. To specify the illumination duration ................................................................... E-32
14. To check the current battery level ....................................................................... E-35
15. To adjust home positions ..................................................................................... E-42
16. To turn the button operation tone on and off ..................................................... E-45
17. To recover from the sleep state ........................................................................... E-47

Contents

• General Guide ......................................................................................................... E-8
• Timekeeping .......................................................................................................... E-10
• World Time ............................................................................................................. E-17
• Alarms .................................................................................................................... E-20
• Countdown Timer .................................................................................................. E-24
• Stopwatch .............................................................................................................. E-29
• Illumination ............................................................................................................ E-31
• Power Supply ........................................................................................................ E-33
• Adjusting Home Positions ................................................................................... E-42
• Reference .............................................................................................................. E-44
• Specifications ....................................................................................................... E-50

General Guide

• Press [C] to change from mode to mode.
• In any mode (except when a setting screen is on the display), press [B] to illuminate the face of the watch.

Timekeeping Mode

Description of display elements: Month, Day, PM indicator, Hour : Minute, Day of week, Second, DST.

Battery Level Indicator

Shows the current power level of the rechargeable battery.

World Time Mode

Displays the current time in 48 cities (31 time zones).

Alarm Mode

Allows configuration of five daily alarms and the Hourly Time Signal.

Stopwatch Mode

Measures elapsed time, split times, and two finishes.

Countdown Timer Mode

Allows setting and running countdown timers.

Timekeeping

Use the Timekeeping Mode to set and view the current time and date. When setting the time, you can also configure settings for the 12/24-hour format. Each press of [D] cycles the digital display in the sequence shown below: Month, Day, PM indicator, Hour : Minute, Day of week, Second.

All operations in this section are performed in the Timekeeping Mode, entered by pressing [C].

World Time

The World Time Mode digitally displays the current time in 48 cities (31 time zones) around the world. After pressing [C] to enter World Time Mode, your selected World Time City code appears for about two seconds, followed by the current time in that city. All operations are performed in World Time Mode.

If the current time for a city is wrong, check your Home City time settings.

To view the time in another city:

Press [D] while in World Time Mode to scroll through city codes and their times. Pressing [D] again while a city code is displayed scrolls to the next city code.

To toggle a city code time between Standard Time and Daylight Saving Time:

1. In World Time Mode, use [D] to display the city code whose Standard Time/Daylight Saving Time setting you want to change.
2. Hold down [A] to toggle Daylight Saving Time (DST indicator displayed) and Standard Time (DST indicator not displayed).

The DST indicator appears when Daylight Saving Time is on for the displayed city code. This setting affects only the currently displayed city code.

Alarms

The Alarm Mode lets you configure five daily alarms and turn the Hourly Time Signal on or off. The watch beeps for about 10 seconds when an alarm time is reached. Turning on the Hourly Time Signal causes the watch to beep on the hour, every hour. All operations are performed in Alarm Mode, entered by pressing [C].

To set an alarm time:

1. In Alarm Mode, use [D] to scroll through alarm screens (AL1, AL2, AL3, AL4, AL5) until the desired one is displayed.
2. Hold down [A] for about two seconds until the hour setting starts to flash. This turns the alarm on automatically.
3. Press [C] to move the flashing between hour and minute settings.
4. While a setting is flashing, use [D] (+) and [B] (-) to change it.
5. Press [A] to exit the setting mode.

Alarm Operation: The alarm tone sounds for 10 seconds, regardless of the mode. To stop the alarm tone, press any button.

To turn an alarm on and off:

1. In Alarm Mode, use [D] to select an alarm.
2. Press [A] to toggle it on and off. (Alarm on indicator appears when on).

To turn the Hourly Time Signal on and off:

1. In Alarm Mode, use [D] to select the Hourly Time Signal (SIG).
2. Press [A] to toggle it on and off. (Hourly time signal on indicator appears when on).

Countdown Timer

Dual timers can be set with two different starting times. The watch can be configured so the two timers alternate. You can specify a "number of repeats" from 1 to 10. The starting time for each timer can be set in five-second steps up to 99 minutes, 55 seconds.

The watch emits a short beep when either timer reaches the end of its countdown. A 5-second beep sounds when the end of the final timer operation (specified by the number of repeats) is reached.

All operations are performed in Countdown Timer Mode, entered by pressing [C].

Countdown End Beeper: Lets you know when the countdown reaches zero. The beeper stops after about 5 seconds or when any button is pressed.

To configure the countdown timer:

1. While the countdown start time is displayed in Countdown Timer Mode, hold down [A] until the start time begins to flash.
2. Press [C] to move the flashing through settings: Timer 1 Minutes, Timer 1 Seconds, Timer 2 Minutes, Timer 2 Seconds, Number of Repeats.
3. When a setting is flashing, use [D] and [B] to change it. To disable a timer, set its start time to 00'00".
4. Press [A] to exit the setting screen.

To use the countdown timer:

Press [D] while in Countdown Timer Mode to start the countdown. Pressing [A] during a countdown displays the repeat count (current/preset). Press [D] to pause, and [D] again to resume. Pressing [A] while a timer is stopped resets it to the start time. The countdown alternates between Timer 1 and Timer 2, with a short beep at changeover. A 5-second beep sounds at the end of the final repeat.

Even if you exit Countdown Timer Mode, the operation continues. To stop completely, pause with [D], then press [A].

Stopwatch

The stopwatch lets you measure elapsed time, split times, and two finishes. The display range is 59 minutes, 59.99 seconds. The stopwatch continues to run until stopped; it restarts from zero if it reaches its limit. Exiting Stopwatch Mode while a split time is frozen clears the split time. The stopwatch measurement continues even if you exit the mode.

All operations are performed in Stopwatch Mode, entered by pressing [C].

To measure times with the stopwatch:

• Elapsed Time: Press [D] to Start, [D] to Stop. Press [D] to Re-start, [D] to Stop. Press [A] to Clear.
• Split Time: Press [D] to Start, [A] to Split. The split time screen alternates between "SPL" and the split time at two-second intervals. Press [D] to Stop. Press [A] to Clear.
• Two Finishes: Press [D] to Start, [A] to Split (displays first runner's time). Press [D] to Stop. Press [A] to Split release (displays second runner's time). Press [A] to Clear.

Illumination

An LED (light-emitting diode) illuminates the display for easy reading in the dark.

To illuminate the display:

In any mode (except when a setting screen is on the display), press [B] to turn on illumination. The illumination will remain on for about 1.5 seconds or 3 seconds, depending on the current illumination duration setting.

To specify the illumination duration:

1. In Timekeeping Mode, hold down [A] until the display contents start to flash.
2. Press [C] 10 times until the current illumination duration setting (LT1 or LT3) appears.
3. Press [D] to toggle between LT1 (approx. 1.5 seconds) and LT3 (approx. 3 seconds).
4. Press [A] to exit the setting screen.

Power Supply

This watch is equipped with a solar cell and a rechargeable battery charged by the solar cell. Position the watch so its face points at a light source for charging.

Note that charging efficiency drops when any part of the solar cell is blocked by clothing, etc. Try to keep the watch outside of your sleeve as much as possible, as charging is reduced significantly if the face is covered partially.

Important!

• Storing the watch in darkness or blocking its exposure to light can cause the rechargeable battery power to run down. Ensure the watch is exposed to bright light whenever possible.
• This watch uses a rechargeable battery, so regular replacement is not required. However, after long use, the battery may lose its ability to hold a full charge. Contact your dealer or CASIO distributor if you experience charging problems.
• Never try to remove or replace the rechargeable battery yourself, as the wrong type can damage the watch.
• The current time and all other settings return to their initial factory defaults when battery power drops to Level 5 or when the battery is replaced.
• Turn on the Power Saving function (page E-46) and keep the watch in an area normally exposed to bright light when storing it for long periods to prevent the battery from going dead.

To check the current battery level:

When the battery level is at Level 1 (HI) or Level 2 (MID), the corresponding indicator (HI or MID) appears only if you press [C] in Timekeeping Mode. For other levels, the indicator appears automatically.

Battery level indicator:

• Level 1 (HI): All functions enabled.
• Level 2 (MID): All functions enabled.
• Level 3 (LO) (Charge Soon Alert): Key operation tone, alarm, Hourly Time Signal, and illumination disabled.
• Level 4: All hands stop at 12 o'clock. All operations disabled.
• Level 5: All functions, including timekeeping, disabled and initialized.

The indicator at Level 3 signals that battery power is very low and requires exposure to bright light for charging as soon as possible. At Level 5, all functions are disabled and settings reset to factory defaults. Reconfigure settings once the battery reaches Level 2 after falling 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 strong light can temporarily cause the battery power indicator to show a higher reading than the actual level. The correct level should be indicated after a few minutes.

Recover indicator: Performing illumination or beeper operations during a short period may cause "(recover)" to appear on the display. After some time, battery power recovers, and "(recover)" disappears, indicating functions are enabled again. If "(recover)" appears frequently, it likely means remaining battery power is low; leave the watch in bright light to charge.

Charging Precautions: Certain charging conditions can cause the watch to become very hot. Avoid leaving the watch in areas described below when charging its rechargeable battery. Allowing the watch to become very hot can cause its liquid crystal display to black out; the LCD appearance should normalize when the watch returns to a lower temperature.

Warning! Leaving the watch in bright light to charge can cause it to become quite hot. Take care 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 sunlight
• Too close to an incandescent lamp
• Under direct sunlight

Charging Guide

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

For details about battery operating time and daily operating conditions, see the "Power Supply" section of the Specifications (page E-52). Stable operation is promoted by frequent exposure to light.

Recovery Times

The table below shows the amount of exposure required to take the battery from one level to the next.

The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.

Adjusting Home Positions

Strong magnetism or impact can cause the hands of the watch to be off. If this happens, perform the applicable home position adjustment procedures.

Hand home position adjustment is not required if the analog time and digital time are the same in the Timekeeping Mode.

To adjust home positions:

1. In Timekeeping Mode, hold down [A] for about five seconds. Release the button after "H.SET" appears on the display. (Though "ADJ" will appear after about two seconds, keep holding [A] until "H.SET" appears.)
2. The hour and minute hands should move to 12 o'clock (their home position), and "0:00" will flash on the display.
3. If the hands are not at 12 o'clock, use [D] (+) and [B] (-) to move them there. Holding down either button causes high-speed hand movement, which continues even if the button is released. Press any button to stop high-speed movement. High-speed movement started with [D] stops automatically after 12 minute hand revolutions. Movement started with [B] stops after one minute hand revolution.
4. After everything is correct, press [A] to return to Timekeeping Mode.

After adjustment, enter Timekeeping Mode and check that analog hands and digital display show the same time. If not, perform home position adjustment again.

Reference

This section contains more detailed and technical information about watch operation, including important precautions and notes about features and functions.

Power Saving Function

The Power Saving function enters a sleep state automatically when the watch is left in a dark area for a period (except in Stopwatch or Timer mode). The table below shows how functions are affected.

Wearing the watch inside a sleeve can cause it to enter the sleep state. The watch will not enter sleep state between 6:00 AM and 9:59 PM. If already in sleep state when 6:00 AM arrives, it will remain in sleep state.

To recover from the sleep state:

• Move the watch to a well-lit area.
• Press any button.

Auto Return Features: If you leave the watch in Alarm Mode or with the battery level indicator displayed for two or three minutes without operation, it automatically returns to Timekeeping Mode. If you leave the watch with a flashing setting for two or three minutes without operation, it automatically exits the setting screen.

Scrolling: Buttons [B] and [D] are used to scroll through data. Holding them down scrolls at high speed.

Initial Screens: When entering World Time Mode or Alarm Mode, the data viewed when last exiting the mode appears first.

Timekeeping Notes: Resetting seconds to 00 while the count is 30-59 increases minutes by 1; in the range 00-29, seconds reset to 00 without changing minutes. The year can be set from 2000 to 2099. The full automatic calendar accounts for month lengths and leap years. The current time for all city codes is calculated according to Coordinated Universal Time (UTC), based on your Home City setting.

Illumination Precautions: Illumination may be hard to see under direct sunlight. It dims if an alarm or time-up alarm sounds. Frequent use of illumination runs down the battery.

Specifications

Power Supply

Approximate Battery Operating Time: 10 months (from full charge to Level 4 when not exposed to light) under these conditions: Display on 18 hours/day, sleep state 6 hours/day; 1 illumination operation (1.5 seconds)/day; 10 seconds of alarm operation/day. Frequent use of illumination can shorten battery operating time.

City Code Table

The following table lists city codes, their UTC offsets, and GMT differentials. Rules for global times and summer time are determined by individual countries.

Based on data as of December 2010.