Operation Guide 4738
2
To select the Single Stopwatch Mode or Dual Stopwatch Mode
In the Stopwatch Mode, press
A
to toggle the Single Stopwatch Mode and the Dual
Stopwatch Mode.
•
You cannot toggle between the Single Stopwatch Mode and Dual Stopwatch Mode
while an elapsed time operation is in progress.
After pressing
A
to reset the elapsed time to all zeros, press
A
again to toggle
between stopwatch modes.
•
The indicator “
ST1
” indicates the Single Stopwatch Mode, while “
ST2
” indicates
the Dual Stopwatch Mode.
Stopwatch mode indicator
Single Stopwatch
Mode Screen
Dual Stopwatch
Mode Screen
Press
A
.
▲
▲
•
Both the Single Stopwatch Mode screen and the Dual Stopwatch Mode screen show
the number of free memory records available for storing data. The watch’s memory
can hold up to 50 records total, including both Single Stopwatch Mode and Dual
Stopwatch Mode records.
Using the Single Stopwatch Mode
The Single Stopwatch Mode displays the total elapsed time and lap times for a single
vehicle or runner.
Remaining free records
To perform a Single Stopwatch Mode operation
1. While the Single Stopwatch Mode screen is displayed,
press
D
to start elapsed time measurement.
2. To display a lap time, press
D
while elapsed time
measurement is in progress.
•
After about 10 seconds, the upper display will change
automatically to timing of the next lap, with the total
elapsed time shown in the lower display.
•
Each press of
D
during elapsed time measurement
stores the applicable lap number, lap time, and total
elapsed time in memory.
•
Lap numbers are displayed in the range of 01 to 99.
After lap 99, pressing
D
does not display a lap time
(elapsed time continues without stopping).
•
During the first hour, the stopwatch displays elapsed time in minutes, seconds,
and 1/100 second. After the first hour, the display changes to shows hours,
minutes, and seconds.
•
Use the Recall Mode to view data in memory.
3. To stop elapsed time measurement and reset, press
A
.
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Total elapsed time
Lap number
Lap time
Using the Dual Stopwatch Mode
The Dual Stopwatch Mode can be used to measure elapsed time for two vehicles or
runners at the same time, including separate lap times and the time differential
between vehicles or runners.
To perform a Dual Stopwatch Mode operation
The table below shows how to time two vehicles or
runners (Measurement A and Measurement B).
•
The lower display shows Measurement A, while the
upper display shows Measurement B.
•
In the Dual Stopwatch Mode, you can start timing from
either Measurement A or Measurement B.
Measurement A
Measurement B
•
The lap number for the current displayed lap time (A or
B) appears in the lap number area, and the applicable
lap time appears in the upper or lower display. The other
display (upper or lower) shows elapsed time
measurement.
•
After about 10 seconds, the display will change
automatically to timing of the next lap.
•
Each press of
D
or
B
during elapsed time
measurement stores the applicable lap number and lap
time in memory.
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Measurement B lap time
Lap number
Measurement A lap time
Lap Time Screen
Start first
elapsed
time.
Press
D
.
Press
B
.
Display
lap time
screen.
Press
D
.
Press
B
.
Start other
elapsed
time.
Press
B
.
Press
D
.
Measurement A
Measurement B
Display lap
time of other
elapsed time.
Press
B
.
Press
D
.
Reset
elapsed
time to all
zeros.
Press
A
.
•
Lap numbers are displayed in the range of 01 to 99.
After lap 99, pressing
D
does not display a lap time
(elapsed time continues without stopping).
•
After starting Measurement A or Measurement B
elapsed time measurement and then starting the other
time’s elapsed time measurement displaying a lap time
for one of the times will display the other time’s lap time
and the difference between Measurement A and
Measurement B. After about 5 seconds, the display will
change automatically to timing of the next lap.
•
After you press one of the buttons to display one of the
lap times (without the lap time differential displayed),
pressing the other button displays the other lap time and
the differential between the two laps for about five
seconds.
•
The “±” indicator on the lap time differential screen
indicates both times are for the same lap.
•
“
x'xx"xx
” is shown for the lap time differential if it is
greater than 10 minutes.
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Measurement B lap time
Measurement A and
Measurement B differential
•
Pressing
A
stops elapsed time measurement and reset.
•
During the first hour, the stopwatch displays elapsed time in minutes, seconds, and
1/100 second. After the first hour, the display changes to shows hours, minutes, and
seconds.
•
Use the Recall Mode to view data in memory.
Recalling Stopwatch Data
You can use the Recall Mode to recall and delete
stopwatch data stored in memory.
•
Your watch automatically creates logs for storage of
stopwatch data in memory. For information about using
logs, see “Managing Memory Data”.
To recall stopwatch log data
1. Enter the Recall Mode.
•
The title screen of the newest log appears first when
you enter the Recall Mode.
2. Use the
A
button to scroll through log title screens
until the one for the log you want to view is on the
display.
•
Logs are numbered from 01 (oldest) to 50.
3. Press
D
(+) or
B
(–) to view the log data.
Log number
Log Title Screen
Log creation date
Stopwatch
mode in which
the recalled log
data was
measured
Press
B
.
Press
D
.
▲
▲
Best lap indicator
Lap number of best lap
Best lap
▲
▲
Lap time
Lap number
▲
▲
▲
▲
▲
▲
*
Total
elapsed
time
Recalled log data measured in the Single Stopwatch Mode (ST1)
Press
B
.
Press
D
.
▲
▲
▲
▲
▲
▲
Recalled log data measured in the Dual Stopwatch Mode (ST2)
Lap time
Lap
number
Lap time
Best lap indicator
Best lap
(Measurement A)
*
Best lap
(Measurement B)
▲
▲
▲
One second
later
Lap number of best lap
(Measurement B)
Lap number of best lap
(Measurement A)
▲
▲
*
The best lap time is for the best time in the newest log only. The Best Lap Time
screen is the one that has the best lap indicator.
To delete stopwatch data
1. In the Recall Mode, use
A
to scroll through log title screens until the one for the log
you want to delete is on the display.
•
Displaying lap time data (not the log title screen), deleting the data also will delete
the log that contains the data.
2. Hold down
B
and
D
until the watch beeps and “
CLR
” stops flashing on the
display.
•
This will delete all of the data in the currently selected log.
•
Deleting the newest log also will delete the best lap time data.
Countdown Timer
You can set the countdown timer within a range of one
minute to 100 hours. An alarm sounds when the
countdown reaches zero.
•
You also can select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
•
All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C
.
Hours
Minutes
Seconds
To use the countdown timer
Press
D
while in the Countdown Timer Mode to start the countdown timer.
•
When the end of the countdown is reached and auto-repeat is turned off, the alarm
sounds for 10 seconds or until you stop it by pressing any button. The countdown
time is reset automatically to its starting value after the alarm stops.
•
When auto-repeat is turned on, the countdown will restart automatically without
pausing when it reaches zero. The alarm sounds when the countdown reaches zero.
•
The countdown timer measurement operation continues even if you exit the
Countdown Timer Mode.
•
To stop a countdown operation completely, first pause it (by pressing
D
), and then
press
A
. This returns the countdown time to its starting value.
To configure countdown start time and auto-repeat settings
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down
A
until the hour
setting of the countdown start time starts to flash, which
indicates the setting screen.
•
If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” to
display it.
2. Press
C
to move the flashing in the sequence shown
below, and select the setting you want to change.
Start Time
(Minutes)
Auto-Repeat
On/Off
Start Time
(Hours)
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Auto-repeat on indicator
On/Off status