Casio 5273 User manual

Operation Guide 5273
E-9
Charging Time
The times below are general guidelines for reference only.
Charging Time to Support Daily Use
Exposure Level (Brightness) Approximate Charging Time
Outdoor sunlight (50,000 lux) 8 minutes
Sunlight through a window (10,000 lux) 30 minutes
Daylight through a window on an overcast day
(5,000 lux) 48 minutes
Indoor fluorescent lighting (500 lux) 8 hours
E-8
Low Battery Alert
The second hand will jump at two-second intervals to alert you when the charge is
low.
2-second jump
Low charge
Regular Timekeeping Low Battery Alert
Charged
E-7
Caution!
The case of the watch may become quite hot when charging. Guard against burnx
injury after charging.
Avoid charging in the following locations, and anywhere else where the watch mayx
become very hot.
On the dashboard of an automobile parked in the sun
−
Close to an incandescent light source or other sources of heat−
Locations exposed to direct sunlight for long periods−
Low Charge and Dead Battery Conditions
An alert operation is performed when the battery charge goes low.
E-6
Solar Charging
A solar panel generates electrical power that charges a built-in (secondary) battery.
The entire face is a solar panel, so power is generated when the face is exposed to
light. Keep the watch exposed to light as much as possible.
Charging the Battery
When you are not wearing the watch, leave it where it is exposed
to light. For stable operation, expose the watch to at least a half
day of light per month.
When wearing the watch, try to keep your clothing from blocking
its face (solar panel). Charging efficiency is reduced significantly
even if the face is blocked only partially.
E-5
E-25 Specifications
E-4
Contents
E-2 Before Using the Watch for the First Time
E-6 Solar Charging
E-12 Indicators and Crown Operation
E-13 Setting the Current Time and Day
E-13 To adjust the time setting
E-14 To change the day indicator setting
E-15 Using the Stopwatch
E-20 Using the Alarm
E-21 To set the alarm time
E-21 To stop the alarm
E-22 To cancel an alarm time setting
E-23 Abnormal Hand Movement or Function
E-3
Crown Operations
Some water-resistant models (100 meters, 200 meters)
have a screw-in crown. When you need to perform a crown
operation, rotate it towards you to unscrew it. Then pull
the crown out. Avoid applying undue force when pulling.
The watch loses its water resistance while the crown is
unscrewed. After performing a crown operation, fully screw
the crown back in.
Crown
Loosen
If your watch has a rotary bezel...
You can rotate the bezel to align its ▼mark with
the minute hand. Then you will be able to tell how
much time has elapsed since aligning the ▼mark.
Start
Elapsed time
Current
E-2
Before Using the Watch for the First Time
Crown
Spacer
Depending on your watch model, there may be a spacerx
installed at the factory around the crown. If your watch has
a spacer, you should remove the spacer before using the
watch.
After removing the spacer, use the procedures in “Crown
x
Operations” (page E-3) and “To adjust the time setting” (page
E-13) to set up the watch for use.
E-1
ENGLISH
Your watch may differ somewhat from the one shown in the illustration.x
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Operation Guide 5273
E-19
Important!
Pulling out the crown to click 2 to perform the above procedure causes current
timekeeping to stop. Because of this, the current time setting and the alarm time
setting will be different when you push the crown back in. After performing the above
procedure, be sure to correct the current time setting and adjust alarm time setting
so it is the same as the current time setting (to turn off the alarm).
E-18
Correcting the 0 Positions of the Stopwatch Hands
Perform the following procedure if the stopwatch hands do not return to their 0 (zero)
positions when you reset the stopwatch.
Pull the1. Crown out to Click 2.
Hold down2. Afor about three seconds, the Stopwatch Minute Hand will rotate
to indicate the minute hand setting mode.
If the hand does not align with 12 o’clock, use the
xBbutton to adjust it.
Holding down
xBmoves the current hand at high speed.
Hold down3. Afor about three seconds, the Stopwatch 1/5-second Hand will
rotate to indicate the second hand setting mode.
If the hand does not align with 12 o’clock, use the
xBbutton to adjust it.
Holding downxBmoves the current hand at high speed.
After all of the hands are the way you want, push the4. Crown back in.
E-17
Note
ThexStopwatch 1/5-second Hand and Stopwatch Minute Hand move for only the first
60 minutes of an elapsed time operation. After that, they stop at the 12 o’clock
position.
The stopwatch will not operate while the second hand is jumping at two-second
x
intervals, which indicates that the watch’s charge is low.
If a low charge state (indicated by the second hand jumping at two-secondx
intervals) is entered while a stopwatch operation is in progress, the stopwatch will
reset automatically to zero.
E-16
Two finishes
AB A B B
Start Split
First runner
finishes.
Display time of
first runner.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Reset
Important!
Do not operate the stopwatch with the crown pulled out.
E-15
Using the Stopwatch
The stopwatch measures elapsed time in 1/5-second increments up to 59 minutes,
59.8 seconds.
Elapsed time
AA A A B
Start Stop Re-start Stop Reset
Split time
AB B A B
Start Split Split release Stop Reset
E-14
To change the day indicator setting
Pull the1. Crown out to Click 1.
Rotate the2. Crown away from you to set the day.
Push the3. Crown back in.
Note
The day indicator setting uses a 31-day month. Make adjustments for months ofx
shorter lengths.
Avoid changing the day indicator setting between the hours of 9 p.m. and 1 a.m.
x
Otherwise, the day indicator may not change correctly at midnight.
E-13
Setting the Current Time and Day
To adjust the time setting
When the second hand is at 12 o’clock, pull the1. Crown out to Click 2.
Rotate the2. Crown to change the time setting.
If you want to turn off the alarm, use3. Bto move the alarm hands so they
indicate the same time as the current time hands.
Holding down
xBwill move the alarm hands at high speed.
Push the4. Crown back in.
Note
Take care that you set the correct AM or PM time.x
When changing the time, move the minute hand four or five minutes past your finalx
setting, and then back it up to the setting you want.
E-12
Indicators and Crown Operation



Second Hand
Day Indicator
Click 2
Hour Hand
Minute Hand
Alarm Minute Hand
Crown
Click 1
Stopwatch Minute Hand
Alarm Hour Hand
Stopwatch 1/5-second Hand
Stopwatch functions Alarm functions
E-11
Note
Actual charging time depends on environmental conditions.
Over-charge Protection
Charging stops automatically when a full charge is attained. This protects against
over-charging.
E-10
Charging Time to Recover from Dead Battery
Exposure Level
(Brightness)
Approximate Charging
Time to 1-second Hand
Movement
Approximate Time to
Full Charge
Outdoor sunlight (50,000 lux) 3 hours 24 hours
Sunlight through a window
(10,000 lux) 11 hours 94 hours
Daylight through a window on
an overcast day (5,000 lux) 18 hours 144 hours
Indoor fluorescent lighting
(500 lux) 175 hours – – –
Important!
The watch will continue to run for about five months after a full charge, even if it is
not exposed to light. For stable operation, however, expose it to light as much as
possible.

Operation Guide 5273
E-25
Specifications
Accuracy: ±20 seconds average per month
Stopwatch: Measuring Capacity: 59'59.8" (60 minutes)
Measuring Unit: 1/5 second
Measurements: Elapsed time; split time; two finishes
Alarm: One-time alarm
Number of Alarms: 1
Alarm Sounds: 20 seconds
Other: Low battery alert
Power Supply: Solar panel and one rechargeable battery
Approximate battery operating time: 5 months
E-24
Reference
To adjust the time setting (page E-13)x
To change the day indicator setting (page E-14)x
E-23
Abnormal Hand Movement or Function
Should the watch ever exhibit abnormal hand movement or function, or if the second
hand does not move normally (one-second increments) even after the watch is fully
charged, perform the procedure below to perform a system reset.
Pull the1. Crown out to Click 2.
Hold down both2. Aand Bfor about three seconds.
Push the3. Crown back in.
The second hand will start to move.
x
If the second hand is jumping at two-second intervals, expose the watch to lightx
to charge it (page E-6).
If the4. Stopwatch 1/5-second Hand and Stopwatch Minute Hand do not return
to their 0 (zero) positions when you reset the stopwatch, correct their
0 positions (page E-18).
E-22
To cancel an alarm time setting
Pull the1. Crown out to Click 1.
Use2. Bto set the alarm hands to the same time as the current time hands.
After that, they will move automatically to indicate the same time as the
current time hands.
Holding down
xBwill move the alarm hands at high speed.
Push the3. Crown back in.
E-21
To set the alarm time
Pull the1. Crown out to Click 1.
Use2. Bto change the alarm time setting.
Holding down
xBchange the setting at high speed.
Push the3. Crown back in.
To stop the alarm
Press1. Aor B.
E-20
Using the Alarm
When the alarm time setting is different from the current time hands, an alarm will
sound for 20 seconds when the current time reaches the alarm time. After that,
the alarm hands move automatically so they match the current time hands (alarm
off). The alarm time can be set in one-minute increments to any time that is up to
11 hours and 59 minutes from the current time.
The alarm will not sound and you will be unable to set an alarm time while the
x
watch’s charge is low (indicated when the second hand is jumping at two-second
intervals).