Casio 3400 Stopwatch, Memory Management, Daylight Saving Time (DST) Setting, Viewing the Stopwatch Displays, l l, DST, LAP, SPL, SPL, Note, Note, Lap Time Measurement

Memory Management

A new log is created each time you press Din the Stopwatch Mode to start a new elapsed time measurement operation. A log contains a log title screen, and records of all the lap or split times you record during the current elapsed time measurement operation.

• The capacity of the watch’s memory is 60 records.

• If you are adding records to the only log in memory and watch memory becomes full, adding another record causes the oldest record in the log to be deleted automatically to make room for the new record.

• If you are adding records to a log when there are multiple logs in memory and watch memory becomes full, adding another record causes the oldest log in memory and all of its records to be deleted automatically to make room for new records.

Operation Guide 3267 3400

To toggle between 12-hour and 24-hour timekeeping

In the Timekeeping Mode, press D to toggle between 12-hour timekeeping and 24- hour timekeeping.

•With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for times in the range of noon to 11:59 p.m. and the A (AM) indicator appears to the left of the hour digits for times in the range of midnight to 11:59 a.m.

•With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without any indicator.

•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is applied in all other modes.

•The A and P indicators are not displayed with the Timekeeping Mode time on the Countdown Timer Mode and Dual Time Mode screens.

Daylight Saving Time (DST) Setting

Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.

E-10

Stopwatch

To toggle the Timekeeping Mode between DST and Standard Time

					1. In the Timekeeping Mode, hold down Auntil the
					seconds start to flash, which indicates the setting
					screen.
			ll		2. Press Conce and the DST setting screen appears.
	l				3. Press Dto toggle between Daylight Saving Time (ON
				l
	l			l	displayed) and Standard Time (OF displayed).
	l
				l
l l ll		ll		l l	4. Press Ato exit the setting screen.
ll
l	l				• The DST indicator appears on the Timekeeping and
l	l
ll ll	On/Off status				Alarm Mode screens to indicate that Daylight Saving
DST indicator
					Time is turned on.

E-11

• The stopwatch measurement operation continues even if you exit the Stopwatch

Mode.

Remaining free records

1/100

Hourssecond

Minutes Seconds

The stopwatch lets you measure elapsed time, lap times, split times, and two finishes. Lap times and split times can be stored in memory.

•The display range of the stopwatch is 99 hours, 59 minutes, 59 seconds.

•All of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing C(page E-6).

Note

•“Lap time” is the time spent to cover a specific segment of a race, such as one lap around a track. “Split time” is the time spent from the beginning of a race up to a certain point.

•The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.

• For information about how stopwatch times are stored in memory, see “Memory

Management” (page E-19).

Viewing the Stopwatch Displays

The information that appears in the watch’s upper and lower displays depends on whether you are measuring lap times or split times.

Lap Time Measurement

Upper Display: Lap time

Lower Display: Elapsed time

Split Time Measurement

Upper Display: Lap time

Lower Display: Elapsed time (Split time appears here for eight seconds as it is stored in memory.)

•See “To measure elapsed time with lap times” (page E-15) and “To measure elapsed time with split times” (page E-17) for more information about each type of measurement.

E-12

•You can perform elapsed time measurement starting from either the lap time screen or the split time screen (page E-15 and E-17). Whenever you enter the Stopwatch Mode, the screen (lap time or split time) that was displayed when you last exited the mode will appear first.

•During a stopwatch elapsed time operation, the upper display initially shows minutes, seconds, and a 1/100-second value. This changes to hours, minutes, and seconds when the time in the upper display exceeds 60 minutes.

•The lower display initially shows hours, minutes, seconds, and a 1/100-second value. This changes to hours, minutes, and seconds when the time in the lower

display exceeds 10 hours.

	Seconds		Minutes
	Minutes	1/100 second	Hours	Seconds
		More than one hour	▲
	Minutes	1/100 second	Minutes
Hours	Seconds		Hours	Seconds
		More than 10 hours	▲

E-14

E-13

To measure elapsed time

Note

•You can perform the following steps starting from either the lap time screen or the split time screen.

1.Press Dto start the stopwatch.

2.Press Dagain to stop the stopwatch.

• You can resume the measurement operation by pressing D.

3.Press Ato clear the stopwatch to all zeros.

To measure elapsed time with lap times

1. When the stopwatch display shows all zeros, press A to display the lap time screen (indicated by LAP/ ).

2.Press Dto start an elapsed time measurement.

•At the time, both the upper and lower displays will show identical times.

3.Press Ato record the time of the first lap.

E-15

Lap time

lll lll
ll	ll			l
lll		l		l
			ll
lll				lll
l	l			l	l
l		l		l	l
ll				ll

Elapsed time

Lap time

lll lll
ll ll	l
l	l
lll ll

Lap number

E-16

•This freezes the current lap time in the upper part of the display for about eight seconds, while measurement of total elapsed time and the next lap time continue internally. The lap number of the displayed time appears in the lower display.

•After eight seconds, the ongoing elapsed time measurement re-appears in the lower display.

4.Repeat step 3 to record more lap times.

5.Press Dto stop the stopwatch.

6.Press Ato clear the stopwatch to all zeros.

•Lap numbers are incremented automatically starting from 1 whenever you press Ain step 3 of the above procedure. The maximum lap number is 99. Recording a lap after that causes the lap number count to restart from 00.

To measure elapsed time with split times
Lap time						1. When the stopwatch display shows all zeros, press A
lll lll						to display the split time screen (indicated by SPL/ ).
l	l		l
l ll			l
lll		ll				2. Press Dto start an elapsed time measurement.
						• At the time, both the upper and lower displays will
lll			lll			show identical times.
l	l		l	l		3. Press Ato record the time of the first split.
l	l		l	l
ll			ll
						• The current split time appears in the lower display for
	Elapsed time					about eight seconds, as the total elapsed time, next
Split Time Recording						lap time, and next split time continue to be timed
(Displayed for eight seconds						internally by the watch. The split number of the
after Ais pressed.)						displayed time appears in the upper display.
Split number						• After eight seconds, the ongoing lap time
						measurement appears in the upper display and the
						ongoing elapsed time measurement appears in the
						lower display.
lll			lll			4. Repeat step 3 to record more split times.
l	l		l	l
l		l	l		l
ll			ll			5. Press Dto stop the stopwatch.
		Split time				6. Press Ato clear the stopwatch to all zeros.
						E-17

•Split numbers are incremented automatically starting from 1 whenever you press A in step 3 of the above procedure. The maximum split number is 99. Recording a split time after that causes the split number count to restart from 00.

To time first and second place finishes

1.When the stopwatch display shows all zeros, press Ato display the split time screen (indicated by SPL/).

2.Press Dto start a time measurement.

3.Press Awhen the first finisher crosses the finish line.

•This freezes the time of the first finisher in the lower part of the display for about eight seconds. After that, the display returns to elapsed time measurement.

4.Press D when the second finisher crosses the finish line.

•The second finisher’s time will appear in the lower display.

•The difference between the first finisher’s and the second finisher’s time will appear in the upper display.

5.Press Ato clear the stopwatch to all zeros.

E-18 E-19