Casio Watch 2413 User Manual

Module No. 2413  
2413-1  
GETTING ACQUAINTED  
Congratulations upon your selection of this CASIO watch. To get the most out of your  
purchase, be sure to carefully read this manual and keep it on hand for later reference  
when necessary.  
After Skin Diving/Snorkeling  
To avoid corrosion, rinse your watch thoroughly with fresh water to remove  
salt water, dirt, etc. (When possible, soak the watch in fresh water overnight to  
make sure that all salt is removed.)  
When using a metal band, occasionally clean inside the gaps in the band  
using a soft toothbrush and soapy water. Failure to do so can result in  
corrosion of the watch, soiling of clothing, or irritation to sensitive skin.  
Precautions  
This watch is intended for use up to skin diving and snorkeling. It is not designed for  
use during scuba diving.  
Never operate the buttons of the watch while underwater or while floating on the  
water’s surface.  
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.  
Before Skin Diving/Snorkeling  
Before beginning skin diving or snorkeling, check to make sure that neither of  
the following is on the display.  
L ERROR message (indicating sensor malfunction)  
L BATT message (indicating low battery power)  
Make sure that the watch is set to the correct time of day.  
Check the glass, case and band for cracks or chips.  
Make sure that the band is fastened securely around your wrist.  
While Skin Diving/Snorkeling  
The indicator ERROR on the display may indicate bad data.  
To avoid scratching the watch, take care when skin diving/snorkeling near  
rocks or coral.  
GENERAL GUIDE  
Press C to change from mode to mode.  
In any mode (except for the Stopwatch Mode), press B to illuminate the display.  
Altimeter Mode  
Depth Gauge Mode  
Barometer Mode  
Timekeeping Mode  
L
Sensor  
Press C.  
Stopwatch Mode  
Alarm Mode  
Note  
TIMEKEEPING  
The watch does not make any allowance for leap years. Be sure to make the  
necessary changes to the date setting to allow for February 29 during a leap year.  
Use the Timekeeping Mode to set and view the current time and date.  
You can display either of two screen formats in the Timekeeping Mode: a Time and  
Date screen or a Time and Pressure Graph screen. Press D in the Timekeeping  
Mode to toggle between the two screens.  
Time and Date Screen  
Month – Day  
Time and Pressure  
Graph Screen  
BAROMETER  
This watch uses a pressure sensor to measure air pressure (barometric pressure).  
There are two types of measurements: regular barometric pressure readings and  
Barometer Mode barometric pressure readings, which are described below.  
You can calibrate the pressure sensor if you suspect the barometric pressure  
reading is incorrect.  
Press D.  
Day of  
the week  
Important!  
The pressure sensor built into this watch measures changes in air pressure, which  
you can then apply to your own weather predictions. It is not intended for use as a  
precision instrument in official weather prediction or reporting applications.  
PM indicator  
Seconds  
Hour : Minutes  
To reset the seconds count to zero  
1. While the Time and Date screen is on the display in the Timekeeping Mode, hold  
down A until the second’s digits start to flash, which indicates the setting screen.  
2. Press D to reset the seconds count to 00.  
Regular Barometric Pressure Readings  
The watch takes regular barometric pressure readings every three hours starting from  
midnight each day. The data produced by these readings is used for the graphic  
display and barometric pressure graph in the Timekeeping Mode.  
Measurements are taken nine, six, and three seconds before each of the regular  
measurement times.  
Pressing D while the seconds count is in the range of 30 to 59 resets the  
seconds to 00 and adds 1 to the minutes. In the range of 00 to 29, the minutes  
count is unchanged.  
3. Press A to exit the setting screen.  
The watch calculates the average of the three readings, and displays the result.  
Regular barometric pressure readings are different from the readings taken in the  
Barometer Mode. Regular barometric pressure readings are used as the data for the  
barometric pressure graph and graphic indicator on the Time and Pressure Graph  
Screen in the Timekeeping Mode.  
To set the time and date  
1. While the Time and Date screen is on the display in the  
Timekeeping Mode, hold down A until the seconds  
digits start to flash, which indicates the setting screen.  
To display regular barometric pressure reading graphics  
In the Timekeeping Mode, press D to display the Time and Pressure Graph Screen  
for the regular barometric pressure readings.  
The barometric pressure graph shows the relative changes between readings for the  
past 18 hours. The flashing marker on the right indicates the latest reading.  
2. Press C to move the flashing around the display in the sequence shown below to  
Example: 10:58pm  
select other settings.  
Graphic indicator  
3:00am 6:00am 9:00am Noon 3:00pm 6:00pm 9:00pm  
Minutes  
Month  
Seconds  
Hour  
Up  
No change  
Down  
Day of the week  
Day  
3. While a setting is flashing, press D (+) to change it.  
While any setting is flashing on the display, press B to toggle between 12-hour  
timekeeping and 24-hour timekeeping.  
Barometric Pressure Graph  
4. Press A to exit the setting screen.  
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2413-3  
DEPTH GAUGE  
STOPWATCH  
The pressure sensor of the watch can also be used to take underwater depth  
measurements while skin diving or snorkeling. Depth is displayed up to 30 meters (99  
feet).  
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.  
Important!  
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.  
All of the operations in this section are performed in the  
Stopwatch Mode, which you enter by pressing C.  
Never use this watch to measure depth while scuba diving.  
Leaving the watch in the Depth Gauge Mode while not in the water uses up battery  
power. Exit the Depth Gauge Mode whenever you are not using it.  
See Depth Gauge Modefor more information.  
Hours  
Seconds  
Minutes  
Depth Gauge Mode Screen  
Depth measurement starts after you enter the Depth Gauge Mode, with a new reading  
taken every three seconds.  
Mode  
indicator  
1/100 second  
To measure times with the stopwatch  
Elapsed Time  
To perform a depth measurement  
Just before starting your dive, press C to enter the Depth  
Gauge Mode.  
Depths are displayed in 0.1-meter (1-foot) units.  
The mode indicator flashes while a measurement  
operation is in progress.  
The depth reading is automatically reset to zero  
whenever you enter the Depth Gauge Mode.  
D
L
D
D
L
Stop  
LB  
Clear  
D
L
Start  
Stop  
Re-start  
Split Time  
B
L
B
L
LD  
Stop  
LB  
Clear  
D
The depth reading shows 0.0 meters (0 feet) when the  
watch is submerged at a depth of 0 to 1 meter (0 to 3  
feet).  
You can change the unit of measurement for the  
displayed depth values between meters (M) and feet  
(F). See To specify the depth measurement unit.  
Depth value  
Start  
Split  
Split release  
Mode indicator  
Timekeeping  
Mode time  
Two Finishes  
B
L
B
L
D
Start  
LB  
Split  
LD  
Clear  
Stop  
Split release  
First runner  
finishes.  
Display time of  
first runner.  
Second runner  
finishes.  
Display time of  
second runner.  
When a depth of 30 meters (99 feet) is exceeded, the message FULL appears on  
the display. The depth value reappears when the depth reading returns to the  
measurable range.  
Enters the Depth Gauge  
Mode (Measurement start)  
Display: 0  
REFERENCE  
Depth = 1 meter  
(3 feet)  
Display:  
Actual depth  
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.  
Sensor Data Errors  
Whenever a sensor problem, poor electrical contact, or  
other abnormality occurs during a barometric pressure,  
altitude, or depth measurement operation, the watch  
beeps for about three seconds and the ERROR indicator  
starts to flash on the display to indicate a sensor error. All  
measurement operations are disabled while the ERROR  
indicator is on the display.  
Note  
You cannot exit the Depth Gauge Mode while any reading other than 0.0 meters (or  
feet) is on the display. See Depth Gauge Measurement Precautionsfor more  
information.  
Depth Gauge Mode Graphic Indicator  
In the Depth Gauge Mode, the graphic indicator shows  
Graphic indicator  
(Indicates 5m)  
the current depth.The first bar appears on the right of the  
If the ERROR indicator appears, press C to change to  
another mode, and then return to the mode where the  
error occurred. If the ERROR indicator appears again, it  
could mean that the watch is malfunctioning. Contact the  
store or dealer where you purchased the watch.  
indicator when depth reaches 1 meter (3 feet). One more  
bar appears with each additional 1 meter (3 feet) of depth,  
up to 30 meters (99 feet).  
Low Battery Indicator  
If the cause of the low battery indicator is due to cold  
conditions (about 10°C/14°F), normal operation should  
return after the watch is brought back to normal  
temperature.  
If the cause of the low battery indicator is due to low  
battery power (indicated when BATT appears under  
normal temperatures), you should have the watchs  
batteries replaced as soon as possible.  
ALARM  
You can set a Daily Alarm that sounds at the same time  
each day, while the alarm is turned on.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.  
Auto Return Features  
After you perform an operation in any mode, pressing C returns to the Timekeeping  
Mode.  
If you leave the watch for about one hour without performing any button operation in  
the Barometer Mode or Altimeter Mode, or in the Depth Gauge Mode with a current  
depth reading of 0, the watch beeps and returns to the Timekeeping Mode.  
If you leave a screen with flashing digits on the display for two or three minutes  
without performing any operation, the watch saves anything you have input up to  
that point and exits the setting screen.  
To set the alarm time  
Alarm time  
1.In the Alarm Mode, hold down A until the hour digits of  
the alarm time start to flash, which indicates the setting  
screen.  
(Hour : Minutes)  
Mode  
indicator  
Alarm on indicator/  
Hourly time signal  
on indicator  
Displaying the alarm time setting screen turns on the  
Daily Alarm.  
Setting Scrolling  
The D and B buttons are used in various setting screens to scroll through settings  
on the display. In most cases, holding down either of these buttons scrolls through  
settings at high speed.  
2. Press C to move the flashing between the hour and minutes digits, and then use  
D (+) to change the flashing digits.  
When setting the alarm time using the 12-hour format, take care to set the time  
12-hour/24-hour Timekeeping Formats  
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also  
applied in all modes.  
correctly as am (no indicator) or pm (P indicator).  
3. Press A to exit the setting screen.  
With the 12-hour format, the P (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 24H  
indicator.  
Daily Alarm Operation  
The alarm sounds at the preset time each day for about 20 seconds (in all modes) or  
until you stop it by pressing any button.  
To test the alarm  
In the Alarm Mode, hold down D to sound the alarm.  
To turn the Daily Alarm and Hourly Time Signal on and off  
In the Alarm Mode, press D to cycle through the on and off settings as shown below.  
[Alarm On indicator/Hourly Time Signal On indicator]  
Daily Alarm  
Only  
HourlyTime  
Signal only  
Both On  
Both Off  
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2413-4  
Altimeter Mode  
Calibrating a Barometric Pressure Value and Specifying a Measurement  
Unit  
How does the altimeter work?  
The pressure sensor of this watch is calibrated at the factory before shipment and  
further adjustment is normally not required. If you notice serious errors in the  
barometric pressure readings produced by the watch, you can calibrate the sensor to  
correct the errors.  
Generally, air pressure and temperature decrease as altitude increases. Under its  
factory defaut setting, this watch bases its altitude measurements on International  
Standard Atmosphere (ISA) values stipulated by the International Civil Aviation  
Organization (ICAO). These values define relationships between altitude, air pressure,  
and temperature.  
Important!  
Incorrectly calibrating the barometric pressure sensor can result in incorrect readings.  
Before performing the calibration procedure, compare the readings produced by the  
watch with those of another reliable and accurate barometer.  
Altitude  
Air Pressure  
Temperature  
616 hPa/mb  
701 hPa/mb  
795 hPa/mb  
899 hPa/mb  
1013 hPa/mb  
11°C  
About 8 hPa/mb per 100 m  
About 9 hPa/mb per 100 m  
4000 m  
3500 m  
2500 m  
1500 m  
500 m  
To calibrate the barometric pressure value  
1. Press C to enter the Barometer Mode.  
2. After the result of the current measurement appears,  
hold down A until the barometric pressure value starts  
to flash. This indicates the barometric value setting  
screen.  
4.5°C  
3000 m  
2000 m  
About 6.5°C  
per 1000 m  
2°C  
8.5°C  
15°C  
About 10 hPa/mb per 100 m  
About 11 hPa/mb per 100 m  
1000 m  
0 m  
About 12 hPa/mb per 100 m  
3. Use D (+) and B () to change the value in 1hPa/mb  
(0.05inHg) increments.  
Source: International Civil Aviation Organization  
You can calibrate the barometric pressure value in the  
range of 600 to 1100hPa/mb (17.70 inHg to  
32.45inHg).  
Altitude  
Air Pressure  
Temperature  
Pressing B and D at the same time displays  
xxxx, which indicates factory preset calibration.  
4. Press A to exit the setting screen.  
14000 ft  
12000 ft  
10000 ft  
8000 ft  
19.03 inHg  
22.23 inHg  
25.84 inHg  
29.92 inHg  
16.2°F  
30.5°F  
About 0.15 inHg per 200 ft  
About 0.17 inHg per 200 ft  
About 0.192 inHg per 200 ft  
About 3.6°F  
per 1000 ft  
6000 ft  
44.7°F  
59.0°F  
When you press A to exit the setting screen after changing the barometric  
pressure setting, numbers cycle on the display at high speed for about nine  
seconds. This does not indicate malfunction. It indicates that the watch is  
performing internal calibration.  
4000 ft  
0 ft  
2000 ft  
About 0.21 inHg per 200 ft  
Source: International Civil Aviation Organization  
How is altitude expressed?  
To specify the barometric pressure unit  
1. Press C to enter the Barometer Mode.  
2. After the result of the current measurement appears,  
hold down A until the barometric pressure value starts  
to flash. This indicates the barometric value setting  
screen.  
There are two standard methods of expressing altitude: absolute altitude and relative  
altitude. Absolute altitude expresses an absolute height above sea level. Relative  
altitude expresses the difference between the height of two different places.  
3. Press C to toggle the measurement unit between  
hPa/mb and inHg.  
4. Press A to exit the setting screen.  
Height of building 130 m  
(relative altitude)  
Rooftop at an altitude of  
230 m above sea level  
(altitude above sea level)  
Specifying the Measurement Unit  
To specify the altitude unit  
Sea  
Important!  
You cannot set the reference altitude value and specify the altitude measurement unit  
during the same procedure.You must complete one operation (reference altitude  
value setting, for example), exit the setting screen, and then start the other operation  
(altitude measurement unit specification, in this example).  
Depth Gauge Mode  
About depth and water pressure  
Water pressure increases with depth. In the case of sea water (specific  
gravity=1.025), water pressure increases by 1 ATM (1.03 kg/cm2) with each 10 meters  
(33 feet) of depth.  
This watch makes use of the relationship between pressure and depth, using a  
pressure sensor to calculate the water pressure and then converting this data into  
depth readings.  
1. Press C to enter the Altimeter Mode.  
2. After the result of the current measurement appears,  
hold down A until the altitude value starts to flash. This  
indicates the reference altitude value setting screen.  
3. Press C to toggle the measurement unit between  
meters (M) and feet (F).  
Depth Gauge Measurement Precautions  
4. Press A to exit the setting screen.  
You cannot exit the Depth Gauge Mode or change the measurement unit setting while  
the depth reading on the display is any value other than zero.This is to prevent  
accidental switching from the Depth Gauge Mode while underwater.  
If you change the altitude measurement unit (M or F)  
after setting a reference altitude, the Altimeter Mode  
performs altitude measurements based on factory  
default settings.  
Automatic Zero Depth Reset  
The initial displayed depth reading is zero whenever you enter the Depth Gauge  
Mode, even if you are underwater. Because of this, you should enter the Depth Gauge  
Mode just before starting your dive. Do not enter the Depth Gauge Mode while  
underwater.  
To specify the depth measurement unit  
Important!  
You cannot change the depth measurement unit when the depth reading is any value  
other than zero.  
Manual Zero Depth Reset  
1. Press C to enter the Depth Gauge Mode.  
2. Hold down A until the current measurement unit starts  
to flash. This indicates the measurement unit setting  
screen.  
3. Press C to toggle the measurement unit between  
meters (M) and feet (F).  
In some cases, such as when the sensor is exposed to  
wide changes in temperature, the display may show a  
depth of greater than 1.0 meter (3 feet) even when you  
are on the surface. In this case, hold down C and D at  
the same time to reset the depth reading to zero.  
4. Press A to exit the setting screen.  
Backlight Precautions  
The backlight uses an EL (electro-luminescent) panel that causes the entire display to  
glow for easy reading in the dark. In any mode (except for the Stopwatch Mode),  
press B to illuminate the display for about one second.  
The backlight does not turn on if you press B while a setting screen is on the  
display.  
The electro-luminescent panel that provides illumination loses power after very long  
use.  
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.  
The illumination provided by the backlight may be hard to see when viewed under  
direct sunlight.  
The backlight turns off whenever an alarm sounds.  
The backlight remains lit for about one second from the point you press the button,  
even if it is already lit when you press the button. If you keep the button depressed  
for one second or more, the backlight turns off.  
Frequent use of the backlight shortens battery life.  
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