Casio 3171 User manual

1
Operation Guide 3171
MA0905-EA
About This Manual
•Depending on the model of your watch, display text appears either as dark figures
on a light background or light figures on a dark background. All sample displays in
this manual are shown using dark figures on a light background.
•Button operations are indicated using the letters shown in the illustration.
(Light) (Light)
Timekeeping Mode Alarm Mode Stopwatch Mode Dual Time Mode
Press .
•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.
General Guide
•Press Cto change from mode to mode.
•In any mode, press Lto illuminate the display.
3. When the setting you want to change is flashing, press Bto change it as
described below.
•Pressing Bwhile the seconds are in the range of 30 to 59 resets them to 00 and
adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged.
4. Press Ato exit the setting screen.
•The year can be set in the range of 2000 to 2099.
•The watch’s built-in full automatic calendar 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.
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press Bto toggle between 12-hour timekeeping and
24-hour timekeeping.
•With the 12-hour format, the (PM) indicator appears to the left of the hour digits
for times in the range of noon to 11:59 p.m. and no 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, with
indicator.
•The and indicators are not displayed with the Timekeeping Mode time on the
Alarm Mode and Dual Time Mode screens.
•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
To change this setting
Seconds
Hour, Minutes, Year, Month,
Day, Day of week
Perform this button operation
Press Bto reset to 00.
Press Bto increase the setting.
Holding down Bchanges the setting at high speed.
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 Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Cto move the flashing in the sequence shown
below to select other settings.
Seconds Hour Minutes
YearMonthDay of the week Day
PM indicator
Month – Day
Hour : Minutes
Day of week
Seconds
Alarm time
(Hour : Minutes)
Timekeeping Mode time
(Hour : Minutes)
Mode indicator
Alarm
When the daily alarm is turned on, the alarm tone sounds
when the alarm time is reached.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds,
regardless of the mode the watch is in.
Hourly time signal
on indicator
Alarm on indicator
To set an alarm time
1. In the Alarm Mode, hold down Auntil the hour setting
starts to flash, which indicates the setting screen.
•This operation automatically turns on the alarm.
2. Press Cto move the flashing between the hour and
minutes.
3. While a setting is flashing, use Bto increase it.
Holding down Bchanges the setting at high speed.
•With the 12-hour format, set the time correctly as a.m.
(no indicator) or p.m. ( indicator).
4. Press Ato exit the setting screen.
To stop the alarm tone after it starts to sound
Press any button.
To turn the Daily Alarm and Hourly Time Signal on and off
In the Alarm Mode, press Bto cycle through the on and
off settings as shown below.
Alarm On Indicator/Hourly Time Signal On Indicator
Daily alarm
only
Both offBoth on Hourly Time
Signal only
•The alarm on ( ) indicator flashes while the alarm is
sounding.
•The alarm on ( ) indicator and Hourly Time Signal on
() indicator are displayed in all modes.
To test the alarm
In the Alarm Mode, hold down Bto sound the alarm.

2
Operation Guide 3171
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
•The display range of the stopwatch is 23 hours,
59 minutes, 59.99 seconds.
•The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
•The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
•Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
•All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
Minutes
SecondsHours
Mode indicator
1/100 second
To measure times with the stopwatch
Elapsed time
Start Stop Re-start Stop Clear
Start Split
(SPL displayed)
Split release Stop Clear
Start Split Stop Split release Clear
Split time
Two Finishes
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
Three-second indicator
SecondsHour : Minutes
Timekeeping Mode time
(Hour : Minutes)
Mode indicator
Dual Time
The Dual Time Mode lets you keep track of time in a
different time zone.
•In the Dual Time Mode, the seconds count is
synchronized with the seconds count of the Timekeeping
Mode.
To set the Dual Time
1. Press Cto enter the Dual Time Mode.
2. Hold down Auntil the hour setting starts to flash, which
indicates the setting screen.
3. Press Cto move the flashing between the hour and
minutes settings.
4. Press Bto increase the setting. Holding down B
changes the setting at high speed.
5. Press Ato exit the setting screen.
Illumination
The watch has an EL (electro-Iuminescent) panel that
causes the entire display to glow for easy reading in the
dark.
•See “Illumination Precautions”for other important
information.
To illuminate the display
In any mode, press Lto illuminate the display.
•You can specify 1.5 seconds or three seconds as the
illumination duration. See “To specify the illumination
duration”for more information.
To specify the illumination duration
In the Timekeeping Mode, hold down Bfor about two seconds to toggle the
illumination duration between three seconds ( displayed) and 1.5 seconds
(not displayed).
•Pressing Balso toggles between 12-hour and 24-hour timekeeping.
•When the three-second setting is selected, the three-second ( ) indicator remains
on the display in all modes.
•To protect against running down the watch’s battery, the watch automatically
switches to the 1.5-second setting about seven hours after the three-second setting
is selected. To continue to use the three-second setting, perform the above
procedure again.
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 features
If you leave a screen with flashing digits for one or two minutes without performing
any operation, the watch automatically saves any settings you have made up to that
point and exits the setting screen.
Illumination Precautions
•The electro-luminescent panel that provides illumination loses power after very long
use.
•Illumination may be hard to see when viewed under direct sunlight.
•Illumination automatically turns off whenever an alarm sounds.
•The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
•Frequent use of illumination runs down the battery.
Specifications
Accuracy at normal temperature: ±20 seconds a month
Timekeeping: Hour, minutes, seconds, p.m., month, day, day of the week
Time system: Switchable between 12-hour and 24-hour formats
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Alarm: Daily alarm; Hourly Time Signal
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99''
Measuring modes: Elapsed time, split time, two finishes
Dual Time: Hour, minutes, seconds, p.m.
Illumination: EL backlight (electro-luminescent panel); Selectable illumination
duration
Battery: One lithium battery (Type: CR1216)
Approximately 3 years on type CR1216 (assuming alarm operation 10 seconds/day,
and one light operation 1.5 seconds/day)