Casio 2301 User Manual

Module No.1798/2301

1798/2301-1

• Press

C to change from mode to mode.

• Holding down

• There are two stopwatches in the Stopwatch Mode. Press

• At any time except while making settings, press

C for a few seconds in any mode enters the Stopwatch Mode. Holding down

Mode

Result ModeTimekeeping

C while in the Stopwatch Mode to toggle between them. See “STOPWATCH MODE” for more information.

D to illuminate the display for about 4 seconds.

Dual Time Mode Alarm Mode Dual

TIMEKEEPING MODE

GENERAL GUIDE

• In the Timekeeping Mode, press formats.

To set the time and date

Month Day Day of

PM indicator

3.While the seconds digits are selected (flashing), press

00. If you press reset to 00 and 1 is added to the minutes. If the seconds count is in the range of 00 to 29, the minutes count is unchanged.

4. While any other digits (besides seconds), are selected (flashing), press

crease the number or digits at high speed.

• The date can be set with the range of January 1,1995 to December 31, 2039.

5.After you are set the time and date, press

• The day of the week is automatically set in accordance with the date.

• If you do not operate any button for a few minutes while a selection is flashing, the

flashing stops and the watch goes back to the Timekeeping Mode automatically.

• When the time shown on the display does not match the analog setting, see “H-SET MODE” to correct the analog setting.

Hour

week

Seconds

Minutes

D while the seconds count is in the range of 30 to 59, they are

B to switch between the 12-hour and 24-hour

1.Hold down

2.Press

B to decrease it. Holding down either button changes the

A until the seconds digits start to flash.

C to move the selection around the display in

the following sequence.

Seconds Hour

Day YearMonth

D to reset the seconds to

A to return to the Timekeeping Mode.

Minutes

D to in-

ABOUT THE BACKLIGHT

• Hold down

• The backlight of this watch employs an electro-luminescent (EL) light, which loses

• Frequent use of the backlight shortens the battery life.

• The watch emits an audible sound whenever the display is illuminated. This does

• The illumination provided by the backlight may be hard to see when viewed under

• The backlight automatically turns off whenever an alarm sounds.

D to illuminate the display for about 4 seconds. The backlight is dis-

abled while an input screen (with a flashing setting) is on the display. its illuminating power after very long term use.

not indicate malfunction of the watch. direct sunlight.

STOPWATCH MODE

The Stopwatch Mode automatically saves the best five lap times in memory, along with lap numbers. You can later recall the saved data using the “RESULT MODE”. The Stopwatch Mode provides you with the following types of stopwatch capabilities.

Single Stopwatch

This is a standard stopwatch that measures elapsed time and lap times.

Dual Stopwatch

This stopwatch lets you measures the times of two cars or runners at the same time.

Selecting the Stopwatch Type

While in the Stopwatch Mode, press Dual Stopwatch. Note that the tion is in progress. Depending on your watch model, the stopwatch display indicators may show CAR1 and CAR2 or STW1 and STW2.

Single Stopwatch Dual Stopwatch

C to toggle between the Single Stopwatch and

C button is disabled while a stopwatch timing opera-

C in the Stopwatch Mode changes to the Timekeeping Mode.

H-SET Mode Single

Single Stopwatch

The Single Stopwatch is a standard stopwatch that measures elapsed time and lap times.

Lap time

Total time

To measure elapsed time with the Single Stopwatch

1.Press

B to start timing.

BB BB

2.Press

B again to stop timing.

You can repeat steps 1 and 2 as many times as you like.

3.Pressing

A while timing is stopped resets the display to all zeros.

To measure lap times with the Single Stopwatch

1.Press

B to start timing.

2.Pressing

A while an timing operation is in progress displays the lap time in the

upper part of the display and the lap number in the lower part. This information remains displayed for about four seconds, after which the elapsed time display returns.

You can repeat step 2 as many times as you like.

3.Press

B to stop timing.

4.Pressing

A while timing is stopped resets the display to all zeros.

• The final time on the display when you press memory as a lap time. If you want to save the final time, press

Dual Stopwatch

Use the Dual Stopwatch to measure the times of two cars or runners at the same time. You can also produce lap times for both and determine the difference between them.

• The Dual Stopwatch is designed to time two runners or cars starting or passing at different times. Accurate measurement is not possible when both start or pass at the same time or close to the same time.

Start/Lap

(second starter)

Lap time

(second starter)

To use the Dual Stopwatch

1.Press

B to start timing of the first starter, which appears in the upper part of the

display.

2. Press

A to start timing of the second starter, which appears in the lower part of the

display.

3.When the first starter passes the timing points, press

4.When the second starter passes the timing points, press

• The difference between the two times appears on the display for about four seconds. After that, each lap time appears for about four seconds.

• If the time of the second starter is faster than that of the first, the time difference is displayed as a negative value.

• If the time difference is 10 minutes or more, -- -- -- is displayed in place of the time.

• If the times being compared are from different laps, the time difference is shown

without a plus or minus indication.

• Hold down

A or

the final time, press

A or

B to stop timing. The final time on the display when you hold down

B to stop timing is not stored into memory as a lap time. If you want to save

A or

Stopwatch Mode

Stopwatch

Seconds

Minutes

1/100 Second

Hours

Seconds

Minutes

1/100 Second

Seconds

B, and then hold down

Stopwatch

B to stop timing is not stored into

A or

Start/Lap (first starter)

Lap time (first starter)

B to stop timing.

A and then

Stopwatch type indicator

Use this mode to view the best five lap times and lap numbers. Lap times are stored

RESULT MODE

by either a Single Stopwatch or Dual Stopwatch operation. Current memory contents are always the results produced by the last stopwatch operation. If you know the length of a lap, you can input it and calculate the speed as well. You can input or change the length either before or after the timing operation.

To input the length of a lap

1.Hold down

2. Each press of

3.After inputting the value you want, press

• If you do not operate any button for a few minutes while a selection is flashing, the

A until the kilometers digits start to flash on the display

C moves the input position between the kilometers digits and the

decimal digits.

flashing stops and the watch goes back to the Result Mode automatically.

A to save it.

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Both OFF Daily Alarm

Only

Hourly Time Signal Only

Both ON

Viewing Result Mode Data

Press

B to cycle through the best five lap times. Pressing

the display shows the average speed for the lap. Press time.

• Pressing

B while the average speed is on the display advances to the next lap

time.

• If the average speed is 1000 km/h or more, E r r is displayed in place of the average speed.

Lap number Order

Mode indicator

Stopwatch type indicator

Lap time

Total time

Single Stopwatch

Lap number

(first starter)

Stopwatch type indicator

Lap number

(second starter)

Order

(second starter)

Dual Stopwatch

Deleting Result Mode Data

Result Mode data is deleted automatically whenever you perform a new stopwatch timing operation. To manually delete data, hold down until the message CLR appears on the display.

Order (first starter)

Lap time

(first starter)

Lap time

(second starter)

A while a lap time is on

A again to return to the lap

B and

D in the Result Mode

DUAL TIME MODE

To set the Dual Time

Mode indicator

SecondsHour

Minutes

• In the Dual Time Mode, the seconds count is synchronized with the seconds count of the Timekeeping Mode.

• If you do not operate any button for a few minutes while a selection is flashing, the flashing stops and the watch goes back to the Dual Time Mode automatically.

Switching Dual Time and the Current Time

Holding down and current time to be reversed. The hands of the watch move at high speed to the correct time. To switch back, simply hold down

B for about two seconds in the Dual Time Mode causes the Dual Time

1. Hold down

2.Press

3. Press

4. After you set the dual time, press

• The format (12-hour and 24-hour) of the dual time matches the format you select for normal timekeeping.

A until the hour digits start to flash on the

display. The hour digits flash because they are selected.

C to change the selection in the following se-

quence.

Hour

D to increase the number or

Holding down either button changes the current number at high speed.

Dual Time Mode.

B again in the Dual Time Mode.

Minutes

B to decrease it.

A to return to the

• The format (12-hour and 24-hour) of the alarm time matches the format you select for normal timekeeping.

• When setting the alarm time using the 12-hour format, take care to set the time correctly as morning or afternoon.

4.After you set the alarm time, press

• If you do not operate any button for a few minutes while a selection is flashing, the flashing stops and the watch goes back to the Alarm Mode automatically.

To stop the alarm

• Press any button to stop the alarm after it starts to sound.

To turn the Daily Alarm and Hourly Time Signal on and off

Press

B while in the Alarm Mode to change the status of the Daily Alarm and Hourly

Time Signal in the following sequence.

To test the alarm

Hold down

B while in the Alarm Mode to sound the alarm.

Note that this operation also changes the Daily Alarm and Hourly Time Signal on/off setting.

A to return to the Alarm Mode.

H-SET MODE

When the time shown on the display does not match the analog setting, use this mode to correct the analog setting.

Mode indicator

SecondsHour

Minutes

To set the analog time

1. Hold down

3.After you set the analog time, press

• If you do not operate any button for a few minutes while a selection is flashing, the flashing stops and the watch goes back to the H-SET Mode automatically.

A while in the H-SET Mode until the digital time (hour and minutes)

starts to flash on the display.

Flashing

• The following step changes the hands of the analog timepiece without changing the flashing digital time.

2.Press

D to advance the hand setting of the analog time-

piece. Holding down speed.

• Pressing ting to change at high speed. The hands continue to move even when you release the buttons. Press

B to stop them.

• The analog time setting does not stop automatically when it reaches the current time. You must stop the hands manually.

• Note that there is not function for moving the hands back, so be sure that you stop any high-speed hand setting operation before the time you want to set is reached.

D changes the hand setting at high

B while holding down

A to return to the H-SET Mode.

D causes the hand set-

D or

Mode indicator

Hour Minutes

ALARM MODE

When the Daily Alarm is turned on, an alarm sounds for 20 seconds at the preset time each day. When the Hourly Time Signal is turned on, the watch beeps every hour on the hour.

1. Hold down

2.Press

3. Press

A until the hour digits start to flash on the

display. The hour digits flash because they are selected. At this time the Alarm is automatically switched on.

C to change the selection in the following se-

quence.

Hour

D to increase the number or

Holding down either button changes the current number at high speed.

Minutes

B to decrease it.