Casio 4798 Watch User Manual


 
Operation Guide 4798
3
Average Speed Indication
The stopwatch minute hand will move the average speed
value after you stop a time measurement or display a lap
time. The letters SP flash on the digital display while the
average speed is indicated.
Stopping an Elapsed Time or Cumulative Elapsed
Time Measurement
The stopwatch minute hand moves to the average speed
value after you press B to stop measurement. After two
seconds, the hand moves to the minutes of elapsed time.
Lap Time Measurement
The stopwatch minute hand moves to the average speed
value after you press A to display a lap time or B to
stop measurement. After two seconds, the hand moves to
the minutes of lap time.
Stopwatch
minute hand
Average Speed
Indication
If the value you input for the distance was in kilometers,
the indicated speed values will show kilometers per
hour. If the value you input was in miles, it will show
miles per hour. Note that the watch does not have a
setting for specifying kilometers or miles.
The average speed is indicated as a value from 0 to
400, in increments of 10.
If the currently displayed speed value for a lap is the
fastest for any laps during the current measurement
operation, the letter F (fastest lap time indicator) will
flash on the digital display.
Either of the following will cause the stopwatch minute
hand to indicate OVER, which indicates that speed
cannot be calculated.
When the speed calculation produces a value
greater than 400
When a displayed elapsed time or cumulative
elapsed time is 60 minutes or greater
When a displayed lap time is 60 minutes or greater
(Average speed calculation will resume when timing
of the next lap is performed.)
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Fastest Lap Time
Indicator
OVER Indication
It takes about two seconds before the average speed to be calculated and the speed
is indicated for about two seconds, so the average speed operation takes a total of
about four seconds. The watch will continue measuring the next lap internally during
this time. Note, however, that pressing B will not display the time of the next lap
during this four-second period.
To input a course or section distance
1. In the Stopwatch Mode, hold down A for about two
seconds until the current distance value setting flashes
in the digital display. This is the setting screen.
2. Press B to increase the distance setting in steps of
0.1.
Simply input a distance value. It makes no difference
whether the value represents kilometers or miles.
You can input a distance in the range of 0.1 to 19.9.
3. Press A to exit the setting screen.
To disable speed display, set the distance value to 0.0.
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Distance value
Using the Tachymeter Bezel to Calculate Average Speed
If your watch has a tachymeter bezel, you can perform the
steps below to calculate average speed after using the
Stopwatch Mode to measure the amount of time that it
takes to travel one kilometer (or one mile).
Never try to perform stopwatch operations while you
are driving an automobile, riding a bicycle, or
operating any type of vehicle. Doing so is very
dangerous and can result in accident.
1 In the Stopwatch Mode, start an elapsed time
operation at any point you like.
2 Stop the elapsed time operation after you travel one
kilometer or one mile.
3 Your average speed will be the value that the second
hand is pointing to on the tachymeter bezel.
The illustration shows an example where it took 50 seconds to travel one kilometer
by car. The second hand is pointing at 70, which indicates that the average speed is
70 kilometers per hour.
Tachymeter bezel
60
3
6
0
2
0
0
150
120
1
0
0
80
7
0
T
A
C
H
Y
M
E
T
E
R
7
0
The tachymeter can be used only when you are traveling by car or some other
means that can cover one kilometer or one mile within 60 seconds.
Dual Time
The Dual Time Mode lets you view the current time in 29
time zones around the world.
When you enter the Dual Time Mode, the stopwatch
1/20 second hand will move to DUAL.
Time zones are indicated on the digital display by their
GMT differential values.
For full information on time zones, see the “Time Zone
Table”.
The watch will perform a signal receive operation even if
it is in the Dual Time Mode when a calibration time is
reached. If this happens, the Dual Time Mode time
settings will be adjusted in accordance with the current
time in the Timekeeping Mode’s Home Time Zone.
All of the operations in this section are performed in the
Dual Time Mode, which you enter by pressing C.
Minus sign
GMT differential
value(–4.0)
Stopwatch 1/20
second hand
Second
hand
Minute
hand
Hour hand
To view the time in another time zone
While in the Dual Time Mode, press B to scroll eastward through time zones.
When you release B, the hands will move to the current time in that time zone after
about one second.
If the current time shown for a time zone is wrong, check the Timekeeping Mode
time setting and your Home Time Zone setting, and make the necessary changes.
To toggle a time zone between Standard Time and Daylight Saving Time
1.In the Dual Time Mode, use B to display the time zone
whose Standard Time/Daylight Saving Time setting you
want to change.
2.Hold down A to toggle between Daylight Saving Time
(DST indicator displayed) and Standard Time (DST
indicator not displayed).
Turning on DST causes the GMT differential value to be
increased by one.
DST indicator
The DST indicator appears on the display whenever you display a time zone for
which Daylight Saving Time is turned on.
The DST/Standard Time setting you configure affects only the currently displayed
time zone. Other time zones are not affected.
The
(GMT: Greenwich Mean Time) time zone cannot be switched between
Standard Time and Daylight Saving Time.
Alarm
When the alarm is turned on, the alarm sounds when the
alarm time is reached.
When you enter the Alarm Mode, the stopwatch 1/20
second hand will move to ALM.
All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
To set an alarm time
1.In the Alarm Mode, hold down A for two seconds to
display the setting mode.
2.Use B to change the alarm time.
Press B to move the hands clockwise in one-minute
steps.
3.After setting the alarm time, press A to exit the setting
mode.
Setting the alarm time causes the alarm to turn on
automatically.
Alarm time minute hand
On/Off status
Alarm time
hour hand
Alarm time
24-hour hand
Stopwatch 1/20
second hand
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the
watch is in.
Alarm operations are performed in accordance with the Timekeeping Mode time.
Pressing any button stops the alarm tone operation.
To toggle an alarm on and off
In the Alarm Mode, press B to toggle the alarm ON and OFF.
The watch will beep when you turn on the alarm.
Adjusting the Home Positions
If the time and date settings are wrong even after the time calibration signal is
received normally, use the following procedure to adjust their home positions.
To adjust the home positions
1.In the Timekeeping Mode, press C four times to enter
the Hand Setting Mode.
The stopwatch 1/20 second hand will move to -00-.
2.Hold down A until 0 0 starts to flash, which indicates
the analog setting screen.
The second hand is at the proper home position if it
moves to 12 o’clock. If it doesn’t, press B to move it
to 12 o’clock.
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Second
hand
Stopwatch 1/20
second hand
3.After confirming that the second hand is at the proper
home position, press C. This will switch to hour hand
and minute hand home position adjustment (Hm
flashes).
The hour hand and minute hand are at their proper
home positions if they both move to 12 o’clock, and if
the 24-hour hand is pointing at hour 24. If the hands
are not positioned correctly, use B to move them to
their proper home positions.
4.After confirming that the hour hand and minute hand
are both at their proper home positions, press C.
This will switch to stopwatch 1/20 second hand home
position adjustment (20 flashes).
The stopwatch 1/20 second hand is at the proper
home position if it moves to 0. If it doesn’t, use B to
move it to 0.
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Minute hand Hour hand
Stopwatch 1/20 second hand
24-hour
hand
5.After confirming that the stopwatch 1/20 second hand is
at the proper home positions, press C. This will switch
to stopwatch minute hand home position adjustment
(60 flashes).
The stopwatch minute hand is at the proper home
position if it moves to 60. If it doesn’t, use B to move
it to 60.
6.Press A to exit the setting screen.
After you complete the home position adjustment
procedure, place the watch in a location that allows
good time calibration signal reception, and then perform
a manual receive operation. See “To perform manual
receive” for more information.
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Stopwatch minute hand