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MA0809-EA
HS-70W
Time Display
Day of the week
Year
Month
Day
PM
Second
Hour
Minute
Timekeeping Mode
Press
.
• A sticker is affixed to the glass of this stopwatch when you purchase it. Be sure to remove the sticker before using
the stopwatch.
• Depending on its model, the configuration of your stopwatch may differ somewhat from that shown in the
illustration.
OPERATING PRECAUTIONS
• A battery is installed at the factory. Have it replaced by a CASIO distributor at the first sign of low power (dim
display).
• Do not use or store this stopwatch in areas exposed to temperature extremes, strong magnetism, strong
vibration, or strong impact.
• Heat can shorten battery life and cause malfunction. Keep the stopwatch away from heaters and direct sunlight
when using it.
• Never try to take the stopwatch apart. Doing so can cause malfunction.
• To clean the stopwatch, use a soft, dry cloth or a cloth moistened in a solution of water and a mild neutral
detergent. Wring out all excess moisture from the cloth. Never use thinner, benzene, alcohol or other similar
agents.
• Be sure to keep all user documentation handy for future reference.
CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any claims by third parties that may
arise through the use of this stopwatch.
GENERAL GUIDE
C button .... Starts and stops timing.
B button .... Toggles between the current time and stopwatch screens.
A button ..... Performs lap/split and reset operation (stopwatch beeps).
R button ..... Recalls lap/split time records and total elapsed time.
SPLIT TIME AND LAP TIME
Split time (SPLIT) is the time
elapsed from the start to a
specific point.
START
Lap time (LAP) is the time
elapsed from one point to another
or for one lap around a track.
START
USING THE STOPWATCH
The stopwatch beeps to signal C and A button operations.
Working range
The total elapsed time and split time display is limited to 9 hours 59 minutes 59.999 seconds. Lap time display is
limited to 59 minutes 59.999 seconds.
Thereafter it will be reset and started again. The lap counter starts from 1 to 99 and repeats from 0.
While the stopwatch is reset to all zeros, holding down the A button will toggle the lower display area between
display of lap time and split time.
• 100 (indicating the number of laps) will flash on the display when memory is full (100 lap times in the current
group).
NORMAL TIME
START
STOP
0
(a)
CHART
a
BUTTON
OPERATION
DISPLAY
NET TIME
START
STOP
0
(a)
CHART
a
BUTTON
OPERATION
DISPLAY
After stopping a net time operation by pressing C, you can resume it by pressing C again.
ENGLISH
Stopwatch Display
Lap counter
Hours
Seconds
Minutes
1/1000th of a second
Stopwatch Mode
Press
.
1ST SPLIT
2ND SPLIT
1ST LAP
2ND LAP
RESET
START
STOP
(a)
(a + b)
b
(Stoppage time)
LAP/SPLIT TIMES
CHART
Split time
BUTTON
Lap time
OPERATION
Total
elapsed time
DISPLAY
MULTIPLE FINISHING TIMES
Example : To record the times of 100 different runners.
Recall Mode
CHART
BUTTON
OPERATION
DISPLAY
USING THE RECALL MODE
You can use the recall mode to view data in stopwatch memory.
• There is enough memory to store a total of up to 200 records, divided between two record groups of 100 each. If
you record 100 times, the 100th time will not be stored in memory until you reset the stopwatch to all zeros.
• Starting a new stopwatch elapsed time operation will cause the older of the two record groups to be deleted
automatically in order to make room for a new group of records.
• There is also a FAST LAP record that displays the fastest lap from among all of the lap times currently in memory.
• Record 1 (the newest record) will always be displayed first whenever you press the R button to switch from the
Stopwatch Mode to the Recall Mode.
• In the Recall Mode, each press of the B button will toggle the display between record group 1 and record group 2.
• Lap time records in memory can be recalled while an elapsed time operation is in progress or stopped.
• Memory records are cleared whenever a new Stopwatch Mode elapsed time operation is stared by pressing the
C button after pressing the A button to reset the stopwatch to all zeros.
Holding down the
3RD SPLIT
3RD LAP
SETTING THE CURRENT TIME AND DATE
MUTE
Beeper On/Off
In the Timekeeping Mode, hold down the A button for about two seconds to toggle the beeper on or off.
Auto Return
The stopwatch returns to the Timekeeping Mode if left unused for a few minutes.
CARE OF YOUR STOPWATCH
• This stopwatch is water resistant up to five bars (atmospheres), which means you can use it in the rain or in
areas where splashing water is present.
Never, however, operate the buttons of the stopwatch while it is immersed in water.
• You should have the rubber seal that keeps out water and dust replaced every 2 to 3 years.
• Should moisture appear inside the stopwatch, have it checked immediately by your dealer or a CASIO distributor.
SPECIFICATIONS
Accuracy at a normal temperature (TIME): ± 30 seconds per month
RESET
Display capacity:
• Time Display: Hour, minutes, seconds, am/pm, year, month, day and day of the week
Calendar system: Pre-programmed until the year 2099
• Stopwatch Display:
Measuring capacity: (Total elapsed time display) 9 hours 59 minutes 59.999 seconds
Measuring unit: 1/1000 second
Measuring modes: Net time, lap time, split time, 1st-100th place time, lap counter (up to 99)
Memory capacity: 2 sets of 100 records each
Battery: One lithium battery (type: CR2032)
Approx. 5 years continuous operation on type CR2032
(includes an average of 30 presses of button per day.)
Operating Temperature: 0°C to 40°C (32°F to 104°F)
START
1ST LAP
2ND LAP
3RD LAP
0
(a)
(a + b)
c (a + b + c)
a
b
1ST SPLIT ( a )
2ND SPLIT ( a+b )
3RD SPLIT ( a+b+c )
START
1ST
2ND
RUNNER
RUNNER
FINISHES
FINISHES
Difference between current finisher
and previous finisher
Finishing position
or
button scrolls at high speed.
1. In the Timekeeping Mode, hold down R for about two seconds.
2. Press C on a time signal to correct the seconds.
3. Flashing setting can be changed. Press B to move the flashing.
SECONDS
HOUR
DAY
4. Use C (+) and A (–) to change the flashing setting.
• Holding down the C or A button scrolls at high speed.
5. Press R to exit the setting mode.
* Year digits can be set up to the year 2099.
12/24-hour Timekeeping
In the Timekeeping Mode, press C to toggle between 12-hour and 24-hour
timekeeping.
(STOPWATCH): 99.9988%
(Lap time display) 59 minutes 59.999 seconds
(Split time display) 9 hours 59 minutes 59.999 seconds
STOP
RESET
(t)
99TH
100TH
RESET
RUNNER
RUNNER
FINISHES
FINISHES
MINUTES
YEAR
MONTH
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