User manual CASIO 2790

[. . . ] MA0309-EB Operation Guide 2790 Getting Acquainted Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to carefully read this manual and keep it on hand for later reference when necessary. Expose the watch to bright light to charge its battery before using it. You can use this watch even as its battery is being charged by exposure to bright light. [. . . ] The watch's auto light switch automatically turns on display illumination when you angle the watch for reading in the dark. · The auto light switch must be turned on (indicated by the auto light switch indicator) for it to operate. · See "Illumination Precautions" for more important information. Three-second indicator Auto light switch indicator Alarm Alarm time (Hour : Minutes) When the daily alarm is turned on, the alarm tone sounds when the alarm time is reached. You can also turn on an Hourly Time Signal that causes the watch to beep twice every hour on the hour. · Alarm setting (and Hourly Time Signal setting) is available in the Alarm Mode, which you enter by pressing B. Alarm Operation Mode indicator The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. · Note that the alarm does not sound while the analog hands are in motion to adjust in accordance with a change made to the digital time setting in the Timekeeping Mode. In the Alarm Mode, hold down A until the hour setting starts to flash, which indicates the setting screen. Press A to exit the setting screen. To set an alarm time To illuminate the display In any mode, press L to turn on illumination. · The above operation turns on illumination regardless of the current auto light switch setting. · You can use the procedure below to select either one second or three seconds as the illumination duration. When you press L, the illumination will remain on for about one second or three seconds, depending on the current illumination duration setting. In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen. While the seconds are flashing, press L to toggle the illumination duration between three seconds (3" displayed) and one second (3" not displayed). · When the three-second setting is selected, the three-second (3") indicator remains on the display in all modes. To stop the alarm tone after it starts to sound Press any button. To turn the Daily Alarm and Hourly Time Signal on and off In the Alarm Mode, press C to cycle through the on and Alarm on indicator off settings as shown below. Alarm On Indicator/Hourly Time Signal On Indicator About the Auto Light Switch While the auto light switch is enabled, illumination turns on for about one second or three seconds, whenever you position your wrist as described below in any mode. Note that this watch features a "Full Auto Light, " so the auto light switch operates only when available light is below a certain level. · Be sure to wear the watch on the outside of your 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 illumination to turn on. Both on Hourly time signal on indicator Both off Daily alarm only Hourly Time Signal only · The alarm on ( ) indicator flashes while the alarm is sounding. · The alarm on ( ) indicator and Hourly Time Signal on ( ) indicator are displayed in all modes. Parallel to ground More than 40° To test the alarm In the Alarm Mode, hold down C to sound the alarm. Warning!· Always make sure you are in a safe place whenever you are reading 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. [. . . ] · On the dashboard of a car parked in direct sunlight · Too close to an incandescent lamp · Under direct sunlight Charging Guide After a full charge, timekeeping remains enabled for up to about 11 months. · The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations. Exposure Level (Brightness) Outdoor Sunlight (50, 000 lux) Sunlight Through a Window (10, 000 lux) Daylight Through a Window on a Cloudy Day (5, 000 lux) Indoor Fluorescent Lighting (500 lux) Approximate Exposure Time 5 minutes 24 minutes 48 minutes 8 hours 6 or 7 days Blank, with PS not flashing · Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state. · The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch is already in the sleep state when 6:00 AM arrives, however, it will remain in the sleep state. To recover from the sleep state Perform any one of the following operations. [. . . ]