Casio QW-1815 Quick Manual

2. OPERATION CHART: QW-1815/1835
• Press C to change from mode to mode.
• In any mode (except when making countdown alarm settings) press D to illuminate the digital display.
The operational procedures for Module 1815, 1835 and 1826 are identical. All of the illustrations in this manual show Module 1826.
Timekeeping Mode
[Module 1815] [Module 1835]
TIMEKEEPING MODE
To set the time and date
1. Hold down A while in the Timekeeping Mode until the
Day
Day of
seconds digits flash on the display.
Month
week
2. Press C to change the selection (flashing) in the
following sequence.
Seconds
Day
3. While the seconds setting is selected (flashing), press
E to reset it to 00. If you press E while the seconds
setting is in the range of 30 to 59, the seconds are
reset to 00 and 1 is added to the minutes. If the
seconds setting is in the range of 00 to 29, the
Hour
Seconds
minutes count is unchanged.
PM Minutes
4. While any other setting (beside seconds) is selected
indicator
(flashing), press E to increase it or B to decrease it.
While the 12/24-hour format setting is selected, press
E to toggle it between 12 and 24.
• Except for the seconds or 12/24-hour setting, holding down a button changes the
setting at high speed.
• When the 12-hour format is selected, the indicator P appears on the display to
indicate "P.M." times. There is no indicator for "A.M." times.
5. After you set the time and date, press A to return to the Timekeeping Mode.
• The day of the week is automatically set in accordance with the date.
• The date can be set within the range of January 1, 1995 to December 31, 2039.
• If you do not operate any button for a few minutes while a setting is flashing, the
flashing stops and the watch goes back to the Timekeeping Mode automatically.
ABOUT THE BACKLIGHT
About the Auto Light Switch Function
When the auto light switch function is turned on, the backlight automatically turns on
for two seconds under the conditions described below. Avoid wearing the watch on
the inside of your wrist. Doing so causes the auto light switch to operate when not
needed, which shortens battery life.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you approximately 40 degrees causes the backlight to illuminate.
Parallel to
ground
• The backlight may not illuminate if the face of the watch is more than 15 degrees off
parallel to the left or right. Make sure that the back of your hand is parallel to the
ground.
Parallel to ground More than 15 degrees
too high
• Static electricity or magnetic force can interfere with proper operation of the auto
backlight function. If the auto backlight does not illuminate, 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 or less
after turn the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.
To switch the auto light switch function on and off
In the Timekeeping Mode, hold down E for one or two seconds to turn the auto light
switch function on and off.
Auto light switch
?
indicator
Hold down E
?
10 58
50
ON
D
• The auto light switch indicator is shown on the display in all modes while the auto
light switch function is on.
• In order to protect against running down the battery, the auto light switch function is
automatically turned off approximately three hours after you turn it on. Repeat the
above procedure to turn the auto light switch function back on if you want.
• Pressing D at any time illuminates the display, regardless of the auto light switch's
on/off setting.
GENERAL GUIDE
[Module 1826]
Hour Minutes
12/24-
Hour
Format
Month Year
40°
More than 15 degrees
too low
?
TR 0
?
OFF
D
— 2 —
Stopwatch Mode Countdown
Alarm Mode
Caution
•
The backlight of this watch employs an electro-luminescent (EL) light, which loses its
illuminating power after very long term use.
•
Frequent use of the backligfht shortens the battery life.
•
The watch emits an audible sound whenever the display is illuminated. This is because the
EL light vibrates slightly when lit. It does not indicate malfunction of the watch.
Warning!
•
Never try to read your watch when mountain climbing or hiking in areas that are dark
or in areas with poor footing. Doing so is dangerous and can result in serious
personal injury.
•
Never try to read your watch when running on a roadside or in any other location
where there might be vehicular or pedestrian traffic. Doing so is dangerous and can
result in serious personal injury.
•
Never try to read your watch when riding on a bicycle or when operating a motorcycle
or any other motor vehicle. Doing so is dangerous and can result in a traffic accident
and serious personal injury.
•
When you are wearing the watch, make sure that its auto light switch function 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.
About the EL Alarm
While the EL alarm feature is turned on, the watch's EL backlight flashes along with
the audible tone when a daily alarm time is reached, when the hourly time signal
sounds, or when the end of a countdown alarm operation is reached. Pressing D
while the EL alarm feature is turned on causes the display to remain illuminated for
five seconds, instead of the normal two seconds when the EL alarm is turned off.
To turn the EL Alarm feature on and off
• In the Timekeeping Mode, hold down B until the EL Alarm indicator appears on (EL
alarm on) or disappears from (EL alarm off) the display.
EL Alarm indicator
Hold down B
?
ON
D
STOPWATCH MODE
The stopwatch Mode lets you measure elapsed time,
Mode indicator
split times, and two finishes. The range of the stopwatch
1/100
is 23 hours, 59 minutes, 59.99 seconds. You can use the
seconds
EL backlight at any time while the stopwatch is
operating.
?
Hours Seconds
Minutes
Elapsed time measurement
E E E
Start Stop Re-start
Split time measurement
E B B
Start Split Split release
Split time and 1st-2nd place times
E B E
Start Split Stop
Second runner
First runner
finishes. finishes.
Record time of
first runner.
Alarm Mode
?
OFF
D
E B
Stop Clear
E B
Stop Clear
B B
Split release Clear
Record time of
second runner.