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Operation Guide 2984
Using the Stopwatch
Whenever you perform a lap/split time operation, the stopwatch stores a record of the lap/
split time. There is enough memory to hold up to 60 lap/split time records. For each
measurement operation, the watch also creates and store a title screen (which also takes
up one record in memory) that shows the distance and the date of the measurement.
The watch calculates the distance covered using elapsed time, based on a fixed pace.
• In the Timekeeping Mode, press the C button once to enter the Stopwatch Mode.
• For the stopwatch to be able to perform distance calculations, you need to use the
procedure under “Configuring Individual Preferences” to specify your stride length and other
information.
• Stopwatch
Measurement Unit: 1/100 second (1 second from the 10th hour)
Measurement Range: 99 hours, 59 minutes, 59 seconds
• Distance
Measurement Unit: 0.1 km
Measurement Range: 99.9km
Maximum Cumulative Distance: 999.9km
• Lap/Split Count Range: 99
Minutes
Hour
Split Time
Remaining Memory
Records
1/100 second
Current Time
Seconds
Button
Button
• Lap/Split Screen Switch
• Start
• Stop
• You can change the lap time
and split time positions by
pressing the B button.
Lap Times and Split Times
A lap time is the time that elapses during a specific portion of the race, such as a lap around
a track, while a split time is the time that elapses from the beginning of a race up to a
certain point.
Lap Time Example
Measuring the lap time for each lap of a
track event, car race, etc.
Lap 1
Lap 2
Lap 3
Start Stop
Split Time Example
Measuring splits at the 10km, 20km, and
30km points of a marathon.
Split 1
Split 2
Split 3
Start Stop
Time Range Display Switching
When you first start an elapsed time measurement, the lower part of the display shows
hours, minutes, seconds, and 1/100 second, while the upper part shows minutes, seconds,
and 1/100 seconds. When the time in the lower part of the display reaches 10 hours, it
switches to hours, minutes, and seconds. The upper part of the display switches to hours,
minutes, and seconds when its time reaches one hour.
Minutes
1/100 secondMinutes
Seconds SecondsHour
Minutes
Seconds 1/100 second
Hour
Minutes Seconds
Hour
Lap/Split Count
To measure elapsed time
Stop Reset
Start
Whenever you press the D button to reset the stopwatch to
all zeros, the data from the last measurement operation is
stored in memory.
Cumulative Time Measurement
Pressing the A button to restart the stopwatch without
resetting it to all zeros resumes elapsed time measurement
from where it was last stopped.
• Reset
(Data to memory)
• Start
• Stop
To record lap/split times
Lap/Split Lap/Split
• • •
• • •
Start
Stop Reset
• The watch will exit the lap/split screen automatically after
about eight seconds.
• Lap/Split
(Data to memory)
• Reset
(Data to memory)
• Start
• Stop
❚
Memory
The watch’s memory can be divided into multiple measurement logs. Each log has its own
title screen that shows the distance and date of the measurement, which takes up one
memory record. The memory’s maximum capacity is 60 lap/split time records, plus at least
one log title screen, for a total of 61 records.
• When memory becomes full, the watch automatically deletes old data to make room for
newly measured data.
Example 1: Memory usage when the current elapsed time measurement is the only
one in memory
Log Title Screen + 60 lap/split records = 61 records
• An elapsed time measurement is one that runs from when the stopwatch is
started from all zeros, until it is again reset to all zeros.
Example 2: Memory usage when there are multiple elapsed time measurements in
memory
Measurement 1:Log Title Screen + 30 lap/split records = 31 records
Measurement 2:Log Title Screen + 29 lap/split records = 30 records
(31 + 30 = 61 total)
• For information about recalling stopwatch records, see “Viewing Stopwatch Records”.
Data Save Timing
Whenever you press the D button to display a lap/split, the lap/split time and distance are
stored in memory. Stopping the elapsed time operation and pressing the D button to reset
the stopwatch to all zeros stores the final distance in memory.
Memory Full
Storing data when memory is full automatically deletes the oldest record currently in
memory to make room for the new data.
Example 1: When the current log is the only one in memory
Recording a new lap/split record while memory is full causes the oldest lap/
split time currently in memory to be deleted to make room for the new one.
Example 2: When there are multiple records or logs in memory
All of the records of the oldest stopwatch log are cleared to make room for
the new data.
• To clear memory data manually, see “To clear measurement log data”.
Viewing Stopwatch Records
Enter the Recall Mode when you want to view stopwatch records.
• In the Timekeeping Mode, press the C button twice to enter the Recall Mode.
Entering the Recall Mode displays a title screen showing the number of the newest
measurement log.
Title Screen
Distance
Measurement
Log Number
Measurement Date
(Month/Day)
❚
To search for a measurement log
Press the B button to scroll through the title screens in sequence, from the newest to the
oldest.
• Holding down the B button scrolls at high speed.
Cumulative DataNewest Measurement Next Older Measurement
Cumulative
Distance
• • •
❚
To search for lap/split data
While the title screen of the measurement log you want is displayed, use the A and D
buttons to scroll through the lap/split time records in the log.
• Holding down either button scrolls the records at high speed.
• The location (upper or lower part of the display) of the lap and split times is the same as
what you selected in the Stopwatch Mode.
Final Lap/SplitTitle Screen Lap/Split 1
• • •
• • •
Split Time
Lap time
Best Lap Screen
The “ ” indicator is displayed on the screen of the best lap time.
• The “ ” indicator does not appear on any screen when the best lap is cleared because
memory became full.
1-second
Interval