CASIO STR300-2A - Owner's Manual Immediate Download

USER'S GUIDE 2575

About This Manual

· Button operations are indicated using the letters shown

in the illustration.

· Each section of this manual provides you with the

information you need to perform operations in each

mode. Further details and technical information can be

found in the "Reference" section.

(Light)

Stopwatch Mode

Dual Time Mode

Alarm Mode

Countdown Timer Mode

Recall Mode

Press C.

General Guide

· Press C to change from mode to mode.

· In any mode, press L to illuminate the display.

Timekeeping Mode

Timekeeping

Use the Timekeeping Mode to set and view the current

time and date.

To set the time and date

1. In the Timekeeping Mode, hold down B until the

seconds start to flash, which indicates the setting

screen.

2. Press C to move the flashing in the sequence shown

below to select other settings.

Hour : Minutes Seconds

Year

Day of week

Month Day

PM indicator

Hour

Seconds

12/24-Hour

Format

Day

Month

Year

Minutes

4. Press B to exit the setting screen.

· The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is

applied in all modes.

· The day of the week is automatically displayed in accordance with the date (year,

month, and day) settings.

Setting

Seconds

Hour, Minutes

12/24-Hour

Format

Year, Month, Day

Button Operation

Press D to reset to

00.

Use D (+) and A () to change the setting.

Press D to toggle between 12-hour (

12H) and

24-hour (

24H) timekeeping.

Use D (+) and A () to change the setting.

Screen

3. When the setting you want to change is flashing, use D and A to change it as

described below.

Stopwatch

The 1/100-second stopwatch can measure elapsed time

and lap/split times. The stopwatch uses the basic data you

input and a pacer signal to calculate the distance you

cover while jogging or running. Stopwatch times and your

distance are also stored in memory.

· The stopwatch measurement operation continues even

if you exit the Stopwatch Mode.

· Exiting the Stopwatch Mode while a lap/split time is

frozen on the display clears the lap/split time and returns

to elapsed time measurement.

· Stopwatch measurements are performed in the

Stopwatch Mode, which you enter by pressing C.

Timekeeping

Mode time

1/100 second

Seconds

Hours

Minutes

Remaining memory

How the Stopwatch Works

There are two ways you can use the stopwatch: to measure elapsed time and lap/split

times like a standard stopwatch (see "To measure times with the stopwatch"), and to

keep track of the distance you cover while jogging or running. In order to use the

stopwatch to keep track of distance, you must first perform the steps listed below.

1. Set your basic data. See "Basic Data".

2. Turn on the pacer signal. See "To turn the pacer signal on and off".

Note

· In order to obtain accurate distance calculations, you must set accurate basic data

and keep your exercise pace in accordance with the pacer signal emitted by the

watch.

· Use the Recall Mode to view data stored in memory.

· You can view distance covered data only by recalling it in the Recall Mode. It does

not appear on the Stopwatch Mode screen.

To measure times with the stopwatch

Note

· Pressing D to perform a lap/split time operation freezes the lap/split time at that

point on the display for about eight seconds. After that, the display returns to normal

stopwatch time measurement.

· During a stopwatch time measurement operation, the upper part of the display

shows the hour digit and the current lap/split number, the center part shows the

current split time, and the lower part shows the current lap time.

· When the pacer signal is turned on, it sounds for the first 30 seconds after you start

a stopwatch time measurement operation. After that, the pacer signal sounds for 30

seconds whenever you press B.

Clear

Next Lap/

Split

Start

Stop

Elapsed Time

Re-start

Clear

Stop

Lap/Split Times

Start

Lap/Split

Stop

· If the pacer signal does not sound even though you have it turned on, press B to

change the positions of the lap time and split time on the display. This should cause

the pacer signal to sound.

Selecting the Stopwatch Screen Format

The following shows how you can control the position of the lap time and split time on

the stopwatch screen.

· The Lap/Split indicator uses arrows to indicate the location the lap time and split

(elapsed) time.

Lap/Split number

Split

time

Lap time

Split time

More than 10 hours

Press B.

Lap time

Hours

Minutes

Seconds

Lap/Split

indicator

· When you first start a stopwatch operation by pressing A, both the center part and

the lower part of the display show minutes, seconds, and 1/100 second. Whenever

the time shown in the lower part of the display is greater than 60 minutes, the display

format changes to show hours, minutes, and seconds. Whenever the time in the

center part of the display is greater than 10 hours, the display format changes to

show hours, minutes, and seconds.

Basic Data

The term "basic data" refers to the pacer signal setup, and information about your

stride length.

Important!

· You cannot change basic data settings while a Stopwatch Mode time measurement

operation is in progress. Stopwatch operation must be stopped and the Stopwatch

screen must be cleared to all zeros before you can change basic data settings.

· Whenever you want to change the stride length unit, you must first reset the

Cumulative Total screen to zero.

· Be sure to update basic data values whenever the person using the watch changes.

Pacer Signal

The pacer signal of this watch beeps in accordance with a pacer value (rate) set by

you. You can use the pacer signal to maintain a constant pace while jogging or

running. You can also turn off the pacer signal when you do not want to use it.

· The pacer value you set specifies the number of beeps per minute.

· Turning on the pacer signal causes the watch to beep at the rate specified by the

pacer value.

· You can set a pacer value in the range of 100 to 200 beats per minute, in units of 5.

· You can disable the pacer function by setting a pacer value of xxx. While the pacer

value is set to

xxx, the watch does not calculate distance covered.

Stride Length

You can specify either centimeters (XM) or inches (Yn) as the stride length unit. The

unit you specify for the stride length unit also determines the unit of measurement

used for the distance value in the Stopwatch Mode and Recall Mode, as shown below.

USER'S GUIDE 2575

· The following examples illustrate how you can calculate values for this setting.

239 steps required to run around a 300-meter track.

300 (meters)

÷ 239 (steps) = 1.255 (approximately 125 cm)

239 steps required to run around a 330-yard track.

330 (yards)

÷ 239 (steps) × 36 = 49.70 (approximately 50 inches)

Setting Range

40 to 190 cm

16 to 76 in

Setting Increment

5 cm

2 in

Distance Unit

Kilometers (km)

Miles (mi)

Stride Length Unit

Centimeters (XM)

Inches (Yn)

To configure your basic data

1. While the Stopwatch Mode screen shows all zeros

(0 H

00'00''00), hold down B until the pacer value

appears flashing on the display. This indicates the

setting screen.

2. Press C to move the flashing in the sequence shown

below to select other settings.

3. When the setting you want to change is flashing, use

D and A to change it as described below.

Stride length unit

Pacer value

Pacer signal

Stride length

Setting

Pacer value

Pacer signal

Stride length

Stride length unit

Screen

Button Operations

Use D (+) and A () to change the setting.

· Selecting xxx disables the pacer signal.

Press D to toggle the pacer signal on (

ON)

and off (

OFF).

Use D (+) and A () to change the setting.

Press D to toggle between centimeters (XM)

and inches (Yn).

· When the pacer signal is turned on, the pacer signal sounds in accordance with the

pacer value while the pacer signal or pacer value setting screen is on the display.

4. Press B to exit the setting screen.

· If you find that the stride length unit won't change reset the cumulative total to all

zeros.

To turn the pacer signal on and off

1. While the Stopwatch Mode screen shows all zeros

(0 H

00'00''00), hold down B until the pacer value

appears flashing on the display. This indicates the

setting screen.

2. Press C once to display the pacer signal setting

screen.

3. Press D to toggle the pacer signal on (

ON) and off

(

OFF).

· A pacer signal on indicator ( ) appears when this

setting it turned on.

4. Press B to exit the setting screen.

Recall Mode

Use the Recall Mode to recall and delete records stored

by the Stopwatch Mode.

· Stopwatch records are stored in "logs" that are created

automatically by the watch. See "Memory Management"

for more information.

· The title screen of the newest log appears first whenever

you enter the Recall Mode.

· Log numbers are automatically assigned in sequence,

starting from

01.

· All of the operations in this section are performed in the

Recall Mode, which you enter by pressing C.

To recall stopwatch records

In the Recall Mode, use B to scroll through the log title

screens, starting from the newest one, as shown below.

When the title screen of the log you want is displayed, use

D and Ato cycle through the records contained in the log.

Distance covered

Log number

Creation date

(Month Day)

Log Title Screen

· The cumulative total screen shows the total distance since the last cumulative total

distance reset.

Press A.

Press D.

Split time

Lap/Split number

BEST indicator

Cumulative Total Screen

Press B.

Log Title Screen

Stopwatch Record

Screen

Best Lap Time

Screen

Lap time

· The locations of the lap time and split time (middle or bottom of the display) in the

Stopwatch Record screen are determined by the display format you last selected in

the Stopwatch Mode.

· The BEST indicator identifies the record that contains the best lap time in the log.

· If a best lap time record is deleted automatically when the log becomes full, the

BEST indicator will not be transferred to the record with the next best lap time. See

"Memory Management" for more information about automatic deletion of records.

· The unit of measurement used for the distance calculation depends on the unit you

select for your stride length as shown in the table below. See "To configure your

basic data" for more information.

Selected Stride Unit

Distance Unit

XM (centimeters)

km (kilometers)

Yn (inches)

mi (miles)

To delete a log

1. In the Recall Mode, display the title screen of the log you want to delete.

· See "To reset the cumulative total screen" below for information about what

happens when you select the cumulative total screen here.

2. Hold down A and D until the watch beeps and

CLR stops flashing on the

display.

· This deletes the log and all the records inside it. Deleting a log does not change the

cumulative total distance value.

To reset the cumulative total screen

1. In the Recall Mode, display the cumulative total screen.

2. Hold down A and D until the watch beeps and

CLR stops flashing on the

display.

· This resets the cumulative total distance to zero, without deleting any logs or

records. A new cumulative total will start with the next stopwatch operation you

perform.

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 can also select auto-repeat, which automatically

restarts the countdown from the original value you set

whenever zero is reached.

· Countdown timer functions are available in the

Countdown Timer Mode, which you can enter using C.

To set the countdown start time

1. While the countdown start time is on the display in the

Countdown Timer Mode, hold down B 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

diplay it.

2. Press C to move the flashing between the hour and

minute settings.

3. Use D (+) and A () to change the flashing item.

· To set the starting value of the countdown time to 100

hours, set

0:00.

4. Press B to exit the setting screen.

To use the countdown timer

Press A 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 automatically reset to its starting value when the alarm sounds.

· Press A while a countdown operation is in progress to pause it. Press A again to

resume the countdown.

· To completely stop a countdown operation, first pause it (by pressing A), and then

press D. This returns the countdown time to its starting value.

Hours

Minutes

Seconds

Timekeeping Mode time

To turn auto-repeat on and off

While the countdown start time is displayed on the

Countdown Timer Mode screen, hold down D for about

two seconds to toggle auto-repeat on (

displayed) and

off (

not displayed).

· When auto-repeat is turned on, the alarm sounds and

countdown starts again whenever the countdown

reaches zero. You can stop the countdown by pressing

A, and manually reset to the countdown start time by

pressing D.

· Auto-repeat timing repeats up to seven times.

Alarms

You can set five independent Daily Alarms. When an

alarm is turned on, the alarm tone sounds when the alarm

time is reached. One of the alarms can be configured as a

snooze alarm or a one-time alarm, while the other four are

one-time alarms.

You can also turn on an Hourly Time Signal that causes

the watch to beep twice every hour on the hour.

· There are five alarm screens numbered 1 through 5.

The hourly time signal screen is indicated by

:00.

· All of the operations in this section are performed in the

Alarm Mode, which you enter by pressing C.

Alarm number

Alarm time

(Hour : Minutes)

Timekeeping Mode time

To set an alarm time

1. In the Alarm Mode, use D to scroll through the alarm

screens until the one whose time you want to set is

displayed.

· You can configure Alarm 1 as a snooze alarm or a one-time alarm. Alarms 2

through

5 can be used as one-time alarms only.

· The snooze alarm repeats every five minutes.

2. After you select an alarm, hold down B until the hour setting of the alarm time

starts to flash. This indicates the setting screen.

3. Press C to move the flashing between the hour and minute settings.

4. While a setting is flashing, use D (+) and A () to change it.

· When setting the alarm time using the 12-hour format, take care to set the time

correctly as a.m. (no indicator) or p.m. (PM indicator).

5. Press B to exit the setting screen.

Alarm Operation

The alarm sounds at the preset time for about 10 seconds. In the case of the snooze

alarm, the alarm operation is performed a total of seven times, every five minutes, until

you turn the alarm off or change it to a one-time alarm.

:00

USER'S GUIDE 2575

Note

· Pressing any button stops the alarm tone operation.

· Performing any one of the following operations during a 5-minute interval between

snooze alarms cancels the current snooze alarm operation.

Displaying the Timekeeping Mode setting screen

Displaying the Alarm

1 setting screen

To test the alarm

In the Alarm Mode, hold down D to sound the alarm.

To turn Alarms

2 through 5

5 on and off

1. In the Alarm Mode, use D to select a one-time alarm

(alarm number

2 through 5).

2. Press A to toggle the displayed alarm on and off.

· Turning on a one-time alarm (2 through 5) displays the

one-time alarm on indicator (

) on its screen.

· The one-time alarm on indicator is displayed in all

modes.

· If any alarm is on, the alarm on indicator is shown on

the display in all modes.

One-time alarm

on indicator

To select the operation of Alarm

1. In the Alarm Mode, use D to select Alarm

2. Press A to cycle through the available settings in the sequence shown below.

· The applicable alarm on indicator (

or SNZ

) is displayed in all modes when an

alarm is turned on.

· The SNZ indicator flashes during the 5-minute intervals between alarms.

· Displaying the Alarm 1 setting screen while the snooze alarm is turned on

automatically turns off the snooze alarm (making Alarm

1 a one-time alarm).

SNZ

SNZ indicator and one-time alarm on indicator

One-time alarm on

Snooze alarm on

Alarm off

To turn the hourly time signal on and off

1. In the Alarm Mode, use D to select the Hourly Time

Signal.

2. Press A to toggle the displayed item on and off.

· Turning on the Hourly Time Signal displays the hourly

time signal on indicator ( ) on its screen.

· The hourly time signal on indicator is displayed in all

modes.

Hourly time signal

on indicator

Dual Time

The Dual Time Mode lets you keep track of time in a

different time zone.

· The seconds count of the Dual Time is synchronized

with the seconds count of the Timekeeping Mode.

To set the Dual Time

1. Press C to enter the Dual Time Mode.

2. Use A, B, and D to set the Dual Time Mode time.

· Each press of D (+) and A () changes the time

setting in 30-minute increments.

· Pressing B sets the Dual Time Mode to the same time

as the Timekeeping Mode.

Dual time

(Hour : Minutes Seconds)

Timekeeping Mode time

Backlight

The backlight uses an LED (light-emitting diode) and a

light guide panel that cause the entire display to glow for

easy reading in the dark. The watch's auto light switch

automatically turns on the backlight when you angle the

watch towards your face.

· The auto light switch must be turned on (indicated by

the auto light switch on indicator) for it to operate.

· See "Backlight Precautions" for other important

information about using the backlight.

To turn on the backlight manually

In any mode, press L to illuminate the display for about

one second.

· The above operation turns on the backlight regardless of

the current auto light switch setting.

Auto light switch

on indicator

About the Auto Light Switch

Turning on the auto light switch causes the backlight to turn on for about one second,

whenever you position your wrist as described below in any mode.

Moving the watch to a position that is parallel to the ground and then tilting it

towards you more than 40 degrees causes the backlight to turn on.

Parallel to

ground

More than

Warning!

· Always make sure you are in a safe place whenever you are reading the

display of the watch using the auto light switch. Be especially careful when

running or engaged in any other activity that can result in accident or injury.

Also take care that sudden illumination by the auto light switch does not

surprise or distract others around you.

· When you are wearing the watch, make sure that its auto light switch is turned

off before riding on a bicycle or operating a motorcycle or any other motor

vehicle. Sudden and unintended operation of the auto light switch can create a

distraction, which can result in a traffic accident and serious personal injury.

To turn the auto light switch on and off

In the Timekeeping Mode, hold down L for about two seconds to toggle the auto light

switch on (

displayed) and off (

not displayed).

· The auto light switch on indicator (

) is on the display in all modes while the auto

light switch is turned on.

Reference

This section contains more detailed and technical information about watch operation.

It also contains important precautions and notes about the various features and

functions of this watch.

Auto Return Feature

If you leave a screen with flashing digits on the display for two or three minutes

without performing any operation, the watch automatically saves any settings you

have made up to that point and exits the setting screen.

Initial Screens

When you enter the Alarm Mode, the screen you were viewing when you last exited

the mode appears first.

Data and Setting Scrolling

The A and D buttons are used in various modes and setting screens to scroll

through data on the display. In most cases, holding down these buttons during a scroll

operation scrolls through the data at high speed.

Timekeeping

· Resetting the seconds to 00 while the current count is in the range of 30 to 59

causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are

reset to

00 without changing the minutes.

· With the 12-hour format, the PM (PM) indicator appears on the display for times in

the range of noon to 11:59 p.m. and no indicator appears 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 year can be set in the range of 2000 to 2039.

· The watch's built-in full automatic calendar automatically makes allowances for

different month lengths and leap years. Once you set the date, there should be no

reason to change it except after you have the watch's battery replaced.

Stopwatch

· You can use lap time measurement to time how long it takes to complete a specific

portion (such as a single lap) of a race.

· You can use split time measurement to time how long it takes to get from the start to

a specific point in a race.

Memory Management

Each time you press A to start a new elapsed time or lap/split operation in the

Stopwatch Mode, the watch automatically creates a new "log" in its memory. The log

remains open for data storage until you permanently close it by pressing D to clear

the stopwatch to all zeros.

· The watch has enough memory to hold up to 61 records. Since each log title screen

uses up one record of memory space, the maximum number of lap/split time records

you can store depends on how many logs there are currently in memory, as shown

below.

· The watch also calculates the cumulative total distance for all stopwatch operations

since the last time the cumulative total distance was reset. The cumulative total does

not affect memory capacity.

· If watch memory is already full when you perform a stopwatch button operation that

creates a new log, the oldest log in memory and all of its records are deleted

automatically to make room for the new log.

· 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.

Number of Logs

Currently in Memory

Memory Capacity

61 Records

Lap/Split Time Record Capacity

61 records 1 log title screen = 60

61 records 2 log title screens = 59

61 records 5 log title screens = 56

How Stopwatch Data is Stored

The following table describes how data is stored when you perform the various button

operations described under "To measure times with the stopwatch."

Stopwatch Button Operation

A Start (from all zeros)

A Stop

A Re-start

D Lap/Split

D Clear

Data Store Operation

Creates a new log: current date and distance

(updated as timing progresses)

Time measurement stops, without storing data in

memory.

Time measurement re-starts, without storing

data in memory.

Creates new record: displayed lap/split times

(Stopwatch display is cleared to all zeros.)

USER'S GUIDE 2575

Backlight Precautions

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

direct sunlight.

· The backlight automatically turns off whenever an alarm sounds.

· Frequent use of the backlight shortens the battery life.

Auto light switch precautions

· Wearing the watch on the inside of your wrist and movement or vibration of your arm

can cause the auto light switch to activate and illuminate the display. To avoid

running down the battery, turn off the auto light switch whenever engaging in

activities that might cause frequent illumination of the display.

· The backlight may not light if the face of the watch is

more than 15 degrees above or below parallel. Make

sure that the back of your hand is parallel to the ground.

· The backlight turns off in about one second, even if you

keep the watch pointed towards your face.

· Static electricity or magnetic force can interfere with

proper operation of the auto light switch. If the backlight

does not light, try moving the watch back to the starting

position (parallel with the ground) and then tilt it back

toward you again. If this does not work, drop your arm

all the way down so it hangs at your side, and then bring

it back up again.

· Under certain conditions, the backlight may not light until

about one second after you turn the face of the watch

towards you. This does not necessarily indicate

malfunction of the backlight.

More than 15 degrees

too high