background image
2147-1
Module No. 2147
GENERAL GUIDE
· Press C
C
C
C
C to change from mode to mode.
· After you perform an operation in any mode, pressing C
C
C
C
C returns to the Timekeeping Mode.
· While in the Timekeeping Mode, Barometer Mode and Alarm Mode, press B
B
B
B
B to illuminate the display for about 1.5 seconds.
Timekeeping Mode
Barometer Mode
Altimeter Mode
Sensor
Alarm Mode
Stopwatch Mode
TIMEKEEPING FUNCTION
While in the Timekeeping Mode, press D
D
D
D
D to switch be-
tween the 12-hour and 24-hour formats.
· When 12-hour format is selected, the indicator P ap-
pears on the display to indicate "p.m." times. There is
no indicator for "a.m." times. Selecting the 24-hour for-
mat causes the 24 to appear on the display.
To set the time and date
1. Hold down A
A
A
A
A while in the Timekeeping Mode until the
seconds digits start to flash on the display. The sec-
onds flash because they are
selected.
2. Press C
C
C
C
C to change the selection in the following se-
quence.
Seconds
Day
Hour
Minutes
Year
Month
3. While the seconds digits are selected (flashing), press D
D
D
D
D to reset the seconds to
"00". If you press D
D
D
D
D while the seconds count is in the range of 30 to 59, the sec-
onds are reset to "00" and 1 is added to the minutes. If the seconds count is in the
range of 00 to 29, the minutes count is unchanged.
4. While any other digits (besides seconds) are selected (flashing), press D
D
D
D
D to in-
crease the number or B
B
B
B
B to decrease it. Holding down either button changes the
current selection at high speed.
5. After you make your settings, press A
A
A
A
A to return to the Timekeeping Mode.
· The day of the week is automatically set in accordance with the date.
· The date can be set within the range of January 1, 2000 to December 31, 2039.
· If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Timekeeping Mode automatically.
ABOUT THE BACKLIGHT
About the Auto Light Switch Function
When the auto light switch function is turned on, the backlight automatically turns on
for two seconds under the conditions described below. Avoid wearing the watch on
the inside of your wrist. Doing so causes the auto light switch to operate when not
needed, which shortens battery life.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you approximately 40 degrees causes the backlight to illuminate.
· The backlight may not illuminate if the face of the watch is more than 15 degrees off
parallel to the left or right. Make sure that the back of your hand is parallel to the
ground.
Parallel to ground
More than 15 degrees
More than 15 degrees
too high
too low
· Static electricity or magnetic force can interfere with proper operation of the auto
backlight function. If the auto backlight does not illuminate, 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 or less
after turn the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.
Barometric
pressure graph
Day of week
Month ­ Day
Seconds
Minutes
Hour
PM indicator
Parallel to ground
40
°
Hold down B
B
B
B
B.
To switch the auto light switch function on and off
In the Timekeeping Mode, hold down B
B
B
B
B for one or two seconds to turn the auto light
switch function on and off.
Auto light switch indicator
ON
OFF
· The auto light switch indicator is shown on the display in all modes while the auto
light switch function is on.
· In order to protect against running down the battery, the auto light switch function is
automatically turned off approximately six hours after you turn it on. Repeat the
above procedure to turn the auto light switch function back on if you want.
· While in the Timekeeping Mode, Barometer Mode and Alarm Mode, press B
B
B
B
B to
illuminate the display for about 1.5 seconds, regardless of the auto light switch's
on/off setting.
Caution
· The backlight of this watch employs an electro-luminescent (EL) light, which loses
its illuminating power after very long term use.
· Frequent use of the backlight shortens the battery life.
· The watch emits an audible sound whenever the display is illuminated. This is be-
cause the EL light vibrates slightly when lit. It does not indicate malfunction of the
watch.
Warning!
· Never try to read your watch when mountain climbing or hiking in areas that
are dark or in areas with poor footing. Doing so is dangerous and can result
in serious personal injury.
· Never try to read your watch when running on a roadside or in any other
location where there might be vehicular or pedestrian traffic. Doing so is dan-
gerous and can result in serious personal injury.
· Never try to read your watch when riding on a bicycle or when operating a
motorcycle or any other motor vehicle. Doing so is dangerous and can result
in a traffic accident and serious personal injury.
· When you are wearing the watch, make sure that its auto light switch function
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 dis-
traction, which can result in a traffic accident and serious personal injury.
BAROMETER FUNCTIONS
This watch uses a pressure sensor to measure barometric pressure. The readout
from the pressure sensor can also be switched between hPa(mb) and inHg. The
barometer can be calibrated to correct for measurement error.
Important!
The barometer that is built into this watch measures changes in barometric 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.
How to interpret barometric readings
· Barometric pressure indicates changes in barometric conditions, and you can pre-
dict weather with reasonable accuracy by monitoring these changes. Rising baro-
metric pressure indicates good weather, while falling pressure indicates deteriorat-
ing weather conditions.
· The barometric pressure you see in the newspaper and on TV weather reports are
measurements that are corrected to 0 m sea level values.
Example barometer applications
· Measurement of barometric changes while hiking to predict coming weather.
· Measurement of barometric differences at different altitudes while mountain climb-
ing.
· Prediction of weather for golf or other outdoor activities.
Switching between hPa(mb) and inHga
1. Use C
C
C
C
C to enter the Barometer Mode.
2. Hold down A
A
A
A
A for about two seconds. In about 6 sec-
onds, the barometric pressure value should start flash-
ing on the display.
3. Press C
C
C
C
C to select either "hPa(mb)" and "inHg".
4. After you select "hPa(mb)" or "inHg", press A
A
A
A
A to return
to the Barometer Mode.
Mode indicator


background image
2147-2
Barometric pressure graph
[Timekeeping Mode]
Barometric Pressure Monitor Function
The Barometric Pressure Monitor Function automatically takes barometric readings
every three hours (starting from midnight). The measured values are shown on a
barometric pressure graph that shows changes in pressure at a glance.
· The barometric pressure graph is shown on the display in any mode.
Reading the barometric pressure graph
Example: When the current time is 10:58 PM.
6:00 - 9:00 - 12:00 - 3:00 P.M. - 6:00 P.M. - 9:00 P.M.
down
up
up
up
up
· The barometric pressure graph shows data for the past 15 hours.
· The flashing point on the right of the display is the point for the last measurement.
· The graph shows upward or downward movement
whenever the current measurement is at least ap-
proximately 2 hPa(mb) (or 0.05 inHg) greater or
less than the previous reading.
· Extreme barometric pressure changes can cause
the graph to shift upwards or downwards, causing
parts of the graph to no longer be visible. The en-
tire graph will become visible once barometric con-
ditions stabilize.
Using the barometric pressure graph
A rising graph generally means better weather.
A falling graph generally means deteriorating weather.
The following conditions cause the barometric pressure measurement to be skipped,
with the corresponding point on the barometric pressure graph being left blank.
· Barometric reading that is out of range (600 to 1,100 hPa(mb) /17.70 to 32.45 inHg).
· Sensor malfunction
· Dead battery
Barometer Mode
In addition to readings taken for the barometric pressure
graph, there is also a Barometer Mode that you can use
for measuring barometric pressure. When you enter the
Barometer Mode, measurements are taken every 4 sec-
onds for the first four minutes. After that, measurements
are taken every minute. The display unit for Barometer
Mode measurements is 1 hPa(mb) (or 0.05 inHg), and
the display range is 600 to 1,100 hPa(mb) /17.70 to 32.45
inHg.
· The display shows " ­ ­ ­ ­ " if a measured value falls
outside the range of 600 to 1,100 hPa(mb) /17.70 to
32.45 inHg. The normal display will return as soon as
the pressure returns within the allowable range.
· If you do not press any button for 5 or 6 hours in the
Barometer Mode, the display returns to the Timekeep-
ing Mode automatically.
Measurement formats and ranges
Display range: 600 to 1,100 hPa(mb) /17.70 to 32.45 inHg
Display unit: 1 hPa(mb) (or 0.05 inHg)
Measuring range: 600 to 1,100 hPa(mb) /17.70 to 32.45 inHg
Barometric pressure change display
When you start measurement (step 2 in the procedure below), the first barometric
pressure measurement is used as a base. Then, each subsequent measurement is
compared with the base, and the difference is shown on the display. Measurements
are taken every 2 seconds for the first four minutes. After that, measurements are
taken every minute.
To use the barometric pressure change display
1. Use C
C
C
C
C to enter the Barometer Mode.
2. Press D
D
D
D
D to change to the barometric pressure change
display. At this time, the watch also starts to measure
the elapsed time.
· You can press B
B
B
B
B at any time to stop the elapsed time
measurement (though timing continues internally). To
resume timing (from the time being kept internally), press
B
B
B
B
B again.
· You can press D
D
D
D
D to change to the normal Barometer
Mode display (showing the current time). Though the
display changes, elapsed time measurement continues
internally. To return to the pressure change display,
press D
D
D
D
D again.
3. Press A
A
A
A
A to stop the measurement and switch to the
normal Barometer Mode display.
· Whenever the elapsed time passes the 60-minute mark, the display changes auto-
matically from showing minutes, seconds and 1/10 second, to hours, minutes, sec-
onds.
· You can perform barometric change measurement for up to 23 hours, 59 minutes,
59 seconds. Whenever the elapsed time passes the 24-hour mark, measurement is
stopped automatically and the normal Barometer Mode display appears.
Calibrating the barometric pressure measurement
The sensor of this watch is calibrated at the factory before shipment and further
adjustment is normally not required. If noticeable error is found in the barometric
pressure readings produced by the watch, you can adjust it to correct the error.
Important
· Incorrectly adjusting the barometric pressure measurement of this watch can result
in incorrect readings. Compare the readings produced by the watch with those of
another reliable, accurate barometer.
· Though you should not try to perform calibration while the barometric pressure
change display is shown, you can perform calibration while the barometric pressure
change operation is being performed internally, without affecting the operation.
[Barometer Mode Display]
Mode indicator
Barometric pressure
Current time
Mode indicator
Pressure change
Elapsed time
(Minutes, Seconds,
1/10 second)
To calibrate the barometer
1. Enter the Barometer Mode and confirm that the normal
Barometer Mode display (showing the current time) is
shown.
2. Hold down A
A
A
A
A for about two seconds. In about 6 sec-
onds, the barometric pressure value should start flash-
ing on the display.
3. Each press of D
D
D
D
D increases the displayed barometric
pressure by 1 hPa(mb), while pressing B
B
B
B
B decreases it.
Holding down either button changes the value at high
speed.
· If you have selected inHg as your unit of measurement,
the above operations change the reading by 0.05 inHg.
· Barometric pressure can be calibrated within the range of 600 hPa(mb) to 1,100
hPa(mb) (or 17.70 inHg to 32.45 inHg).
· Pressing B
B
B
B
B and D
D
D
D
D at the same time resets the watch to its factory calibration.
4. After calibrating the barometer, press A
A
A
A
A to return to the normal Barometer Mode
display.
· If you do not operate any button for a few minutes while the barometric pressure
digits are flashing, the flashing stops and the watch returns to the normal Barome-
ter Mode display.
ALTIMETER FUNCTIONS
A built-in altimeter uses a pressure sensor to detect the current air pressure, which is
then used to estimate the current altitude in accordance with ISA (International Stan-
dard Atmosphere) values for altitude and barometric pressure. The readout from the
pressure sensor can be switched between meters (m) and feet (ft.).
Important!
· This watch estimates altitude based on barometric pressure. This means that alti-
tude readings for the same location may vary if barometric pressure changes.
· Sudden changes in the weather make it impossible to produce accurate altitude
readings.
· Do not use this watch while participating in sports where there are sudden altitude
changes. Also, do not use this watch for applications that demand professional or
industrial level precision. This watch should not be used while engaging in the fol-
lowing activities: sky diving, hang gliding, paragliding, gyrocopter riding, glider riding,
etc.
· In order to avoid measurement problems caused by differences in the watch's tem-
perature, be sure to wear the watch so that it comes into direct contact with your
skin.
Example altimeter applications
· Measurement of altitudes during hiking or mountain climbing.
· Calculation of average ascending and descending speeds while driving in the moun-
tains.
· Measurement of the height of a building.
Switching between meters and feet
1. Use C
C
C
C
C to enter the Altimeter Mode.
2. Hold down A
A
A
A
A for about two seconds. In about 6 sec-
onds, the altitude value should start flashing on the dis-
play.
3. Press C
C
C
C
C to select either meters (m) and (ft.).
4. After you select " m " or " ft. ", press A
A
A
A
A to return to the
Altimeter Mode.
Altimeter Mode
The Altimeter Mode automatically measures your current altitude. When you enter
the Altimeter Mode, measurements are taken every three seconds for the first five
minutes.
After that, measurements are taken every minute.
Measurement formats and ranges
Display range: ­4,000 to 4,000 m (or ­13,120 to 13,120 ft.)
Display unit: 5 m (or 20 ft.)
Measuring range: 4,000 m (or 13,120 ft.), within the rage of ­4,000 to 4,000 m
(or ­13,120 to 13,120 ft.).
Reading the altimeter display
Use C
C
C
C
C to enter the Altimeter Mode.
· If you do not press any button for 5 or 6 hours in the
Altimeter Mode, the display returns to the Timekeeping
Mode automatically.
· The display shows " ­ ­ ­ ­ " if a measured value falls
outside the measuring range. The normal display will
return as soon as the pressure returns within the allow-
able range.
High altitude memory
The high altitude memory automatically stores the high-
est measured altitude into memory. To display the cur-
rently stored high altitude, enter the Altimeter Mode and
press B
B
B
B
B . To return to the normal Altimeter Mode display,
press B
B
B
B
B again. To clear the current high altitude value
from memory, display the value and then hold down D
D
D
D
D
until the watch beeps. As soon as you clear the memory,
the next measurement of an altitude is automatically stored
as the new high altitude.
Mode indicator
Mode indicator
Current altitude
Current time
Maximum altitude
[ High Altitude Display ]


background image
2147-3
Altitude change display
When you start measurement (step 2 in the procedure below), the first altitude mea-
surement is used as a base. Then, each subsequent measurement is compared with
the base, and the difference is shown on the display. Measurements are taken every
2 seconds for the first five minutes. After that, measurement are taken every minute.
To use the altitude change display
1. Use C
C
C
C
C to enter the Altimeter Mode.
2. Press D
D
D
D
D to change to the altitude change display. At
this time, the watch also starts to measure the elapsed
time.
· You can press D
D
D
D
D to change to the normal Altimeter Mode
display (showing the current time). Though the display
changes, elapsed time measurement continues internal-
ly. To return to the altitude change display, press D
D
D
D
D
again.
3. Press A
A
A
A
A to stop the measurement and switch to the
normal Altimeter Mode display.
· Whenever the elapsed time passes the 60-minute mark,
the display changes automatically from showing min-
utes, seconds and 1/10 second, to hours, minutes, sec-
onds.
· You can perform altitude change measurements for up to 23 hours, 59 minutes,
59 seconds. Whenever the elapsed time passes the 24-hour mark, measurement is
stopped automatically and the normal Altimeter Mode display appears.
To perform speed measurements
1. Use C
C
C
C
C to enter the Altimeter Mode.
2. Press D
D
D
D
D to change to start measurement of elapsed
time.
3. Press B
B
B
B
B to stop the elapsed time measurement (timing
continues internally).
· At this time, the average ascending and descending
speed appears on the display.
4. Press B
B
B
B
B again to resume timing from the time being
kept internally.
· You can repeat steps 3 and 4 as many times as you
want.
5. Press A
A
A
A
A to stop the measurement and switch to the
normal Altimeter Mode display.
Notes
· The watch is not designed to measure speeds when the altitude changes suddenly
over a short period of time.
· Depending on conditions, the display may show the speed in terms of hours or
minutes. Note the following.
Speed
Unit Used
0 to
±999 m/hour
m/h
More than
±999 m/hour
m/min.
Above
±999 m/minute
­ ­ ­ ­
Speed
Unit Used
0 to
±2,999 ft./hour
ft./h
More than
±2,999 ft./hour
ft./min.
Above
±2,999 ft./minute
­ ­ ­ ­
Calibrating the altimeter
The altitude measurements produced on this watch may be affected by barometric
pressure. Because of this, we suggest that you calibrate the altimeter using informa-
tion available from a map or other source.
Notes
· Calibration is performed in the Altimeter Mode, while the normal Altimeter Mode
display is shown. Do not try to perform calibration while the altitude change display
is shown.
· Though you should not try to perform calibration while the altitude change display is
shown, you can perform calibration while the altitude change operation is being
performed internally, without affecting the operation.
To calibrate the altimeter
1. Enter the Altimeter Mode and confirm that the normal
Altimeter Mode display (showing the current time) is
shown.
2. Hold down A
A
A
A
A for about two seconds. In about 6 sec-
onds, the altitude value should start flashing on the dis-
play .
3. Each press of D
D
D
D
D increases the displayed altitude value
by 5 m, while pressing B
B
B
B
B decreases it. Holding down
either button changes the value at high speed.
· If you have selected feet as your unit of measurement, the above operations change
the reading by 20 ft.
· You can calibrate the altitude within the range of ­4,000 m to 4,000 m (of ­13,120 ft.
to 13,120 ft.).
· Pressing B
B
B
B
B and D
D
D
D
D at the same time resets the watch to its factory calibration.
4. After calibrating the altimeter, press A
A
A
A
A to return to the normal Altimeter Mode dis-
play.
· If you do not operate any button for a few minutes while the altitude digits are
flashing, the flashing stops and the watch returns to the normal Altimeter Mode
display.
Mode indicator
Hour
Minutes
ALARM FUNCTIONS
When the Daily Alarm is turned on, an alarm sounds for
20 seconds at the preset time each day. When the Hourly
Time Signal is turned on, the watch beeps every hour on
the hour.
1. Hold down A
A
A
A
A until the hour digits start to flash on the
display. The hour digits flash because they are
select-
ed. At this time the Alarm is automatically switched on.
2. Press C
C
C
C
C to change the selection in the following se-
quence.
Hour
Minutes
3. Press D
D
D
D
D to increase the number or B
B
B
B
B to decrease it. Holding down either button
changes the current number at high speed.
· The format (12-hour and 24-hour) of the alarm time matches the format you select
for normal timekeeping.
· When setting the alarm time using the 12-hour format, take care to set the time
correctly as morning or afternoon.
4. After you set the alarm time, press A
A
A
A
A to return to the Alarm Mode.
· If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Alarm Mode automatically.
To stop the alarm
· Press any button to stop the alarm after it starts to sound.
To turn the Daily Alarm and Hourly Time Signal on and off
Press D
D
D
D
D while in the Alarm Mode to change the status of the Daily Alarm and Hourly
Time Signal in the following sequence.
Both OFF
Daily Alarm
only
Hourly Time
Signal only
Both ON
To test the alarm
Hold down D
D
D
D
D while in the Alarm Mode to sound the alarm.
Note that this operation also changes the Daily Alarm and Hourly Time Signal on/off
setting.
STOPWATCH FUNCTIONS
The Stopwatch Mode lets you record elapsed time, split
times, and two finishes. The range of the stopwatch is 23
hours, 59 minutes, 59.99 seconds.
(a) Elapsed time measurement
Start
Stop
Re-start
Stop
Clear
Start
Split
Split release
Stop
Clear
Start
Split
Stop
Split release
Clear
(b) Split time measurement
(c) Split time and 1st-2nd place times
First runner
finishes.
Second runner
finishes.
Record time of
first runner.
Record time of
second runner.
ERROR WARNING FUNCTION
This watch is designed to automatically stop taking measurements when there is a
sensor malfunction, when battery power drops below a certain level, or when temper-
ature drops below ­10
°C (or 14°F).
Sensor malfunction
Low battery or Low temperature
Example: Barometer Mode
Example: Altimeter Mode
Important!
· When a sensor malfunction initially occurs, the "ERR." message flashes and a buzzer
sounds for three seconds.
· If the sensor is malfunctioning when it comes time for an barometric pressure mea-
surement to be taken, the corresponding point on the barometric pressure graph is
left blank.
· There may be cases where the "ERR." or "BATT." message is cleared once you
change modes. In this case, you can continue using the watch normally unless the
error warning message reappears.
Whenever there is a sensor malfunction, be sure to take the watch to an au-
thorized CASIO distributor or Service Center as soon as possible. If the ap-
pearance of the "BATT." message is caused by extremely low temperature,
the message should clear from the display when normal temperature returns.
It is recommended, however, that you still have the watch checked by an au-
thorized CASIO distributor or Service Center.
Mode indicator
1/100 second
Seconds
Minutes
Hours
Average speed
Mode indicator
Altitude change
Elapsed time
(Minutes, Seconds,
1/10 second)


background image
2147-4
THINGS TO KNOW ABOUT ALTITUDES
Relationships between altitude, barometric pressure, and temperature
Generally, barometric pressure and temperature decrease as altitude increases. This
watch bases its altitude measurements on International Standard Atmosphere (ISA)
values stipulated by the International Civil Aviation Organization (ICAO), which de-
fine relationships between altitude, barometric pressure, and temperature.
ALTITUDE
BAROMETRIC PRESSURE
TEMPERATURE
4,000 m
3,000 m
2,000 m
1,000 m
3,500 m
616 hPa(mb)
701 hPa(mb)
795 hPa(mb)
899 hPa(mb)
1,013 hPa(mb)
About 8 hPa(mb) per 100m
About 9 hPa(mb) per 100m
About 10 hPa(mb) per 100m
About 11 hPa(mb) per 100m
About 12 hPa(mb) per 100m
2,500 m
1,500 m
500 m
0 m
­11
°C
­4.5
°C
About
6.5
°C
per
1,000 m
2
°C
8.5
°C
15
°C
Source: International Civil Aviation Organization
How altitude is expressed
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.
Height of building
130 m
(Relative altitude)
Sea
Rooftop at an altitude of
230 m above sea level
(Altitude above sea level)
Example: To obtain readings that are close to absolute altitude.
When you are out hiking or mountain climbing, calibrate the altimeter using an alti-
tude value from another source (a signpost or map, for example). Do this just before
you start your altitude measurements.
1. At point A, calibrate the altimeter to 400 meters.
2. Proceed from Point A to Point B, taking altime-
ter measurements along the way.
· If you also have altitude data for Point B, you
should again calibrate the altimeter there.
· Be sure to recalibrate at Point B if changing
weather conditions produce reading errors.
· The following conditions will prevent you from obtaining accurate readings.
When barometric pressure changes because of change in the weather
Extreme temperature changes
When the watch itself is subjected to strong impact