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Casio STR300-1C User Manual

Casio str300-1c: user guide.
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About This Manual
General Guide
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
Hour : Minutes Seconds
Day of week
Month – Day
PM indicator
3. When the setting you want to change is flashing, use D and A to change it as
described below.
Hour, Minutes
Year, Month, Day
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.
Remaining memory
Mode time
1/100 second
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".
• 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
• 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.
• 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.
Timekeeping Mode
Press C.
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
2. Press C to move the flashing in the sequence shown
below to select other settings.
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.
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.
Stopwatch Mode
Dual Time Mode
To measure times with the stopwatch
• 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.
• 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.
Lap/Split number
Lap time
• The Lap/Split indicator uses arrows to indicate the location the lap time and split
(elapsed) time.
• 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.
• 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.
Recall Mode
Alarm Mode
Countdown Timer Mode
Elapsed Time
Lap/Split Times
Next Lap/
Lap time
Press B.
Split time
More than 10 hours


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   Summary of Contents for Casio STR300-1C

  • Page 1: Stopwatch

    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.

  • Page 2: Recall Mode

    Miles (mi) 2. Hold down A and D until the watch beeps and display. • This deletes the log and all the records inside it. Deleting a log does not change the cumulative total distance value.

  • Page 3: Dual Time

    • 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.

  • Page 4

    • 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.

This manual also for:

Str300-7, 2575

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