Casio 2804 - Manual (Page 4)

Operation Guide 2804
4
To set the countdown time
1. In the Countdown Timer Mode, hold down A until the hour digit of the
countdown time starts to flash, which indicates the setting screen.
2. Press C to move the flashing in the sequence shown below to select
other settings.
Hours
Auto
Repeat
Minutes Seconds
3. While a setting is flashing, use D (+) and B (–) to change it.
• To set the starting value of the countdown time to 24 hours, set
0:00 00 .
• See “To turn auto repeat on and off” below for details on the Auto
Repeat setting.
4. Press A to exit the setting screen.
To turn auto repeat on and off
1. In the Countdown Timer Mode, hold down
A until the hour digit of the countdown
time starts to flash, which indicates the
setting screen.
2. Press C three times to move the flashing
to the Auto Repeat setting.
3. Press D to turn auto repeat on ( ON
displayed) and off ( OFF displayed).
4. Press A to exit the setting screen.
l l l l ll
lll
ll ll lll
l l l
Auto repeat on indicator
Note
• When the end of the countdown is reached while auto repeat is on, the
alarm sounds, but the countdown starts again automatically whenever
the countdown reaches zero. You can stop timing by pressing B, and
manually reset to the starting countdown time by pressing D.
• Normally, an alarm tone sounds for about 10 seconds when the end of
the countdown is reached. If you use auto repeat with start time of 10
seconds or less, the alarm tone sounds for only one second.
• Frequent use of auto repeat with a short countdown time can reduce
the charge of the rechargeable battery and cause the countdown time
alarm to become disabled, so it does not sound.
Backlight
The backlight uses an EL (electro-
luminescent) panel that causes 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 on
indicator) for it to operate.
•
See “Backlight Precautions” for other
important information about using the
backlight.
Auto light switch
on indicator
To turn on the backlight manually
In any mode, press L to illuminate the display for about two seconds.
• The above operation turns on the backlight regardless of the current
auto light switch setting.
About the Auto Light Switch
Turning on the auto light switch causes the backlight 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.
• 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.
More
than
40
°
Parallel to
ground
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 the Timekeeping Mode, hold down D for two seconds to turn the auto
light switch on (AUTO EL displayed) and off (AUTO EL not displayed).
• The auto light switch on indicator (AUTO EL) is on the display in all
modes while the auto light switch is turned on.
• Frequent use of the auto light switch greatly reduces the charge of the
rechargeable battery. If you use the auto light switch often, be sure to
leave the watch where it is exposed to sunlight during the daytime so it
can recharge the rechargeable battery. 10 minutes exposure to
sunlight provides enough of a charge for about 10 to 20 auto light
switch operations.
Battery
This watch is equipped with a solar cell and a rechargeable battery
(secondary 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 pointing at a light source.
• Note that charging efficiency
drops when any part of the solar
cell is blocked by clothing, etc.
• The illustration shows how to
position a watch with a resin band.
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. Be sure that the watch
is normally exposed to bright light whenever possible.
Solar cell
Battery
power
indicator
• This watch employs a solar cell that converts light into electricity, which
charges a built-in rechargeable battery. Normally, the rechargeable
battery should not need replacement, but after very long use over a
number of years, the rechargeable battery may lose its ability to
achieve a full charge. If you experience problems getting the
rechargeable battery to a full charge, contact your dealer or CASIO
distributor about having the rechargeable battery replaced.
• The rechargeable battery should be replaced with a CASIO-specified
ML-2016 battery only. Other rechargeable batteries can cause damage
to the watch.
• All data stored in memory is deleted, and the current time and all other
settings return to their initial factory defaults whenever battery power
drops to Level 5 and when you have the battery replaced.
•
Enter the Power Saving Mode and keep it in an area normally exposed
to bright light when storing it for long periods. This helps to keep the
rechargeable battery from going dead.
Battery Power Indicator
The battery power indicator on the display shows you the current status
of the rechargeable battery’s power.
Level
1
2
3
4
5
Battery Power
Indicator
Function Status
All functions enabled.
All functions enabled.
All functions enabled.
Beeper tone, backlight, display disabled;
timekeeping enabled.
Beeper tone, backlight, display, timekeeping
disabled.