Module No. 1998/2198
1998/2198-1
GENERAL GUIDE
• Press C to change from mode to mode. Hold down C for one or two
seconds in any mode to switch back to the Timekeeping Mode.
• In addition to the modes illustrated below, this watch is also equipped with a
Digital Compass Mode. See “5 Digital Compass Functions” for details.
• The shape of the watch depends on the model.
Altimeter Mode
AUTO
Timekeeping Mode
m
°
C
(Barometric Pressure/
(Timekeeping Screen)
P
Temperature Screen)
ALTI
A
S
N
A
B
NE
NW
Press D.
hPa mb
P
°C
▼
A
S
P
S E
S W
Recall Mode
A
S
D
C
S
E
Bearing sensor
Pressure sensor
Barometric Pressure/Temperature Screen Auto Cancel
AUTO
m
• If you leave the Barometric Pressure/Temperature displayed without
performing a calibration operation or changing the measurement units
for about 10 or 11 hours, the watch beeps and automatically returns to
the Timekeeping screen.
°
C
RECALL
A
S
• If the watch is in another mode (other than the Timekeeping Mode)
when the 10 or 11 hour point is reached, the watch beeps but the mode
does not change.
▼
▼
Alarm Mode
Stopwatch Mode
A
A
S
• The auto light switch on indicator is shown on the display in all modes while
the auto light switch is on.
BACKLIGHT
• In order to protect against running down the battery, the auto light switch is
automatically turned off approximately six hours after you turn it on. Repeat
the above procedure to turn the auto light switch back on if you want.
• Pressing B in any mode (except for the Recall Mode) illuminates the
display for about two seconds, regardless of the auto light switch on/off
setting.
This watch features an electroluminescent
(EL) backlight that helps you easily read the
face, even in total darkness. Its auto light
switch automatically lights the watch face
whenever you turn your wrist towards your
face.
A
B
D
P
A
S
About the auto light switch
C
While the auto light switch is turned on, the backlight automatically lights for
about two seconds in any mode whenever you position your wrist as described
below.
E
Notes
• The backlight of the watch employs an electroluminescent (EL) light, which
Important!
loses illuminating power after very long use.
Avoid wearing the watch on the inside of your wrist. Doing so causes the auto
light switch to operate when it is not needed, which shortens battery life.
• Frequent use of the backlight shortens the battery life.
• The illumination provided by the backlight may be hard to see when viewed
under direct sunlight.
• The watch will emit an audible sound whenever the display is illuminated. It
does not indicate malfunction of the watch.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you more than 40 degrees causes the backlight to illuminate.
• The backlight automatically turns off whenever an alarm sounds.
To manually turn on the backlight
In any mode (except for the Recall Mode), press Bto illuminate the display
for about two seconds.
More
than 40°
Parallel to
ground
To switch the auto light switch on and off
In the Timekeeping Mode, hold down D for one or two seconds to turn the
auto light switch on and off.
• The backlight may not illuminate if the face of the watch is more than 15
degrees off parallel as shown below. Make sure that the back of your hand
is parallel to the ground.
Auto light
switch on
indicator
More than 15 degrees
too high
More than 15 degrees
too low
Parallel to ground
P
P
AUTAUTO
A
S
A
S
ON
OFF
1998/2198-3
• Each memory area is identified by a number from 1 through 5. The Normal
screen shows the current time and date without a memory number.
• If the memory area you select already contains data, that data appears on
the display whenever the memory area is selected. Performing a Digital
Compass operation replaces the existing data with the newly measured
data.
• The more correctly you perform bidirectional calibration, the better the
accuracy of your Digital Compass readouts. You should perform bidirectional
calibration whenever you change environments where you use the Digital
Compass, and whenever you feel that the Digital Compass is producing
incorrect readings.
2. Use the same procedures as described in steps 1 through 4 under
“To take a direction reading without storing data into memory”.
To perform bidirectional calibration
1. While in the Digital Compass Mode (Normal
screen), hold down A until the upper
display changes to show “–1–”.
• At this time, the magnetic north indicator
flashes at the 12 o’clock position to indicate
that the watch is ready to calibrate the first
direction.
A
B
To recall data from memory
While in the Digital Compass Mode, use D
to scroll through the data in the following
Magnetic north indicator
Direction
Date
sequence.
BEARING
A
S
2. Place the watch on a level surface, and
press E to calibrate the first direction.
• When the calibration procedure is complete,
the message “OK” appears in the upper
display. This soon changes to “–2–” and the
magnetic north indicator flashes at the 6
o’clock position to indicate that the watch is
ready for the second direction.
Normal
A
B
Memory 2
Memory 3
Memory 1
Memory 4
Screen
C
D
E
Memory 5
P
BEARING
A
S
To delete data
1. While in the Digital Compass Mode, scroll
through the data items and display the one
you want to delete.
2. Hold down A until the displayed value
changes to “– – –”.
• Holding down A causes the message
“CLR” to appear on the display, followed by
the value changing to “– – –”.
C
D
3. Rotate the watch 180 degrees.
E
4. Press E again to calibrate the second direction.
• When the calibration procedure is complete, the message “OK” appears in
the upper display. After a short while, the watch automatically returns to the
Digital Compass Mode.
Time
Direction value
Memory No.
Precautions about bidirectional calibration
• You can use any two opposing directions for bidirectional calibration. You
must, however, make sure that they are 180 degrees opposite each other.
Remember that if you perform the procedure incorrectly, you will get wrong
readings from the Digital Compass.
• Do not move the watch during the one or two seconds (from the point you
press E up to the point that “OK” appears in the upper display) that the
calibration of each direction is in progress. If you do, the message “ERR”
appears in the upper display. When this happens, restart the bidirectional
calibration procedure from the beginning.
Digital Compass Precautions
This watch features a built-in magnetic bearing sensor that detects terrestrial
magnetism. This means that the northern direction indicated by this watch is
magnetic north, which is somewhat different from true polar north. The
magnetic north pole is located in northern Canada, while the magnetic south
pole is in southern Australia. Note that the difference between magnetic north
and true north as measured with all magnetic compasses tends to be greater
as one gets closer to either of the magnetic poles. You should also remember
that some maps indicate true north (instead of magnetic north), and so you
should make allowances when using such maps with this watch.
• The appearance of “ERR” during bidirectional calibration can also be
caused by local interference. If you suspect that this is the case, move to
another location and try the procedure again.
• You should perform bidirectional calibration in an environment that is the
same as that where you plan to be using the Digital Compass. If you plan to
use it in an open field, for example, calibrate in an open field.
Location
• Using the Digital Compass when you are near a source
of strong magnetism can cause large errors in readings.
Because of this, you should avoid using the Digital
Compass while in the vicinity of the following types of
objects: permanent magnets (magnetic necklaces, etc.),
concentrations of metal (metal doors, lockers, etc.),
high tension wires, aerial wires, household appliances
(TVs, personal computers, washing machines, freezers,
etc.)
To perform northerly calibration
1. While in the Digital Compass Mode (Normal
screen), hold down A until the upper
A
B
display changes to show “–1–”.
2. Press C to start the northerly calibration
procedure.
• At this time, the indicator “N” appears in the
• Accurate direction measurements are impossible while in a train, boat, air
plane, etc.
• Accurate measurements are also impossible indoors, especially inside
ferroconcrete structures. This is because the metal framework of such
structures picks up magnetism from appliances, etc.
upper display.
BEARING
A
S
3. Place the watch on a level surface, and
position it so that its 12 o’clock position
points north (as measured with another
compass).
C
D
E
4. Press Eto start the calibration operation.
Storage
• The precision of the compass may deteriorate if the watch becomes
magnetized. Because of this, you should be sure to store the watch away
from magnets or any other sources of strong magnetism, including:
permanent magnets (magnetic necklaces, etc.) and household appliances
(TVs, personal computers, washing machines, freezers, etc.)
• Whenever you suspect that the watch may have become magnetized,
perform one of the calibration procedures under “Calibrating the Digital
Compass”.
• When the calibration procedure is complete, the message “OK” appears in
the upper display. After a short while, the watch automatically returns to the
Digital Compass Mode.
CHANGING THE MEASUREMENT UNITS
You can change the measured values displayed by the watch between the
following units.
Calibrating the Digital Compass
Whenever you suspect that the readings produced by the Digital Compass
are wrong, you should calibrate it. You can use either one of two calibration
procedures: bidirectional calibration or northerly calibration.
You should use bidirectional calibration when you want to calibrate the Digital
Compass to operate within an area exposed to magnetic force. This type of
calibration should be used if the watch become magnetized for any reason.
With northerly calibration, you “teach” the watch which way is north (which
you have to determine with another compass or some other means). You
could use this calibration procedure, for example, to set the watch to indicate
true north instead of magnetic north.
Altitude: meters (m) ↔ feet (ft)
Temperatures: Celsius (°C) ↔ Fahrenheit (°F)
Barometric Pressure:
hecto-pascals/millibars (hPa/mb) ↔ inchesHg (inHg)
Some countries call to this unit as hecto-pascal (hPa), while other
countries call it millibars (mb). It really makes no difference, because
1 hPa = 1 mb. In this manual, we will refer to hPa/mb or hPa (mb).
Important!
• Certain measurement functions are automatically terminated when you
change the measurement units. Be sure that you perform this operation
before starting actual measurements.
• Changing the altitude unit of measurement automatically switches off the
altitude alarm, and sets the alarm’s value to zero.
• Changing the barometric pressure unit of measurement automatically restarts
the barometric pressure graph from a new value.
• Changing any of the units of measurement immediately starts to display
newly measured data in the unit you specify. It also affects the unit of
measurement for any data already stored in memory.
Important!
• If you want to perform both bidirectional and northerly calibration, be sure to
perform bidirectional calibration first, and then perform northerly calibration.
This is necessary because bidirectional calibration cancels any previously
set northerly calibration setting.
• If you do not perform any button operation for two or three minutes while
either calibration procedure is in progress (while the magnetic north indicator
is flashing at the 12 or 6 o’clock position), the watch automatically returns to
the Digital Compass Mode.
1998/2198-4
To change the measurement units
Understanding the altimeter display
Use C to enter the Altimeter Mode. Note that once you enter the Altimeter
Mode, the watch beeps for about three seconds and automatically returns to
the Timekeeping Mode if you do not press any button for 10 or 11 hours.
1. Use C to enter the Timekeeping Mode.
2. Press D until the Barometric Pressure/
Temperature screen appears.
A
B
3. Hold down A until “OFF” (or the
temperature value) appears flashing in the
display. The data on the display is flashing
because it is selected.
hPa mb
Altitude Graph (unit: 10m/40ft)
°
C
Graphic display
A
S
Remaining memory
4. Press C to change the selection in the
following sequence.
Auto memory
2
C
D
Current altitude
(flashing)
indicator
*
A
C
B
D
E
AL
3
Altitude alarm
AL
*
AUTO
AUTO
m
°
C
Current altitude
Current time
Barometric Pressure Adjustment
Temperature Adjustment
m/ft
P
ALTI
A
S
ALTI
A
S
°C/°F
hPa(mb)/inHg
E
Current temperature
5. Use Cto select the unit (°C/°F, hPa (mb)/
inHg or m/ft) you want.
1
Mode indicator
*
hPa mb
6. Press Bor Dto set the currently selected
unit.
7. After making your selection, press A to
return to the Timekeeping Mode (Baro-
metric Pressure/Temperature screen).
C
1 “ALTI” flashes while a measurement is being taken every five seconds. It
does not flash during measurements taken every two minutes.
2 “AUTO” flashes on the display while a memory measurement is in progress.
The indicator stops flashing while no measurement is being performed.
*
*
*
A
S
3 “
” appears on the display when the altitude alarm is switched on.
AL
Memory measurements
ALTIMETER FUNCTIONS
Memory measurements are taken independently of Altimeter Mode
measurements and stored directly into memory (along with temperature
measurements) for later recall. With memory measurement, the watch
continuously performs measurements whenever the minutes in the
Timekeeping Mode reach 00, 15, 30, or 45, until you switch memory
measurements off. The watch continues to take measurements regardless of
whether or not you change modes, so you can keep a running log of altitude
and temperature changes automatically.
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 Standard Atmosphere) values for altitude and air pressure. If
you preset a reference altitude, the watch will also calculate the current
relative altitude based on your preset value. Altimeter functions also include
data storage memory and an altitude alarm.
Important!
About the memory...
• This watch estimates altitude based on air pressure. This means that
altitude readings for the same location may vary if air pressure changes.
• Sudden changes in the weather make it impossible to produce accurate
altitude readings.
• This watch employs a semiconductor pressure sensor, which is affected by
temperature changes. When taking altitude measurements, be sure to do
so while ensuring that the watch is not exposed to temperature changes.
• 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 following activities: sky diving, hang gliding, paragliding,
gyrocopter riding, glider riding, etc.
The memory item stored by the watch consists of the current altitude, plus the
date, time, and temperature. Data is stored in the same sequence that it is
input.
Memory can hold a total of 50 sets of data, which is enough to store 12 hours
and 15 minutes of memory data. See “To recall altitude measurement data
from memory” for details on how to recall memory data.
Important!
Further memory measurements become impossible
whenever memory is full. If you try to perform Memory
measurement while memory is full, the watch beeps for
three seconds and the message FULL appears on the
ALTI
A
S
display. Always check the amount of memory remaining
before starting memory measurements, and delete data if
necessary.
Applications
When no reference altitude is preset:
• The watch produces approximate altitude readings.
To store altitude data into memory (memory measurement)
When a reference altitude is preset:
1. In the Altimeter Mode, hold down D until
the watch emits a short beep, indicating
the start of the measurement.
• The data measured when you first start
memory measurement is also stored into
memory.
Auto memory indicator
• Before beginning the climb, set the reference altitude to 0 m at the foot of
the mountain. This makes it possible to determine the difference in altitude
between the reference point and your destination.
A
B
• To determine the height of a tall
building, set the reference
altitude to 0 m on the ground
floor. Note, however, that if the
building is pressurized or air
conditioned, you may not be able
to get a good reading.
AL
AUTO
m
• The “AUTO” indicator flashes on the display
when you start memory measurements. The
“AUTO” indicator continues to flash
(indicating that measurements continue)
even if you change modes.
°
C
P
ALTI
A
S
C
D
• To determine the difference in altitude between your house and the another
location, set the reference altitude to 0 m at your house, and then check the
reading when you arrive at the other location.
E
• Auto memory measurement cuts off automatically whenever there are 49
sets of data stored in memory. The 50th set of data measured when you stop
the measurement operation in step 2 below is also stored in memory.
2. To stop measurements at any point, hold down D again until the watch
emits a short beep.
• A final measurement is taken when you switch memory measurement off,
and that data is also stored into memory. Such data is indicated by “FIN”
during the recall operation.
About altitude measurements
There are two types of altitude measurements: those for displayed data
(Altimeter Mode measurements) and those for memory data (see “Memory
measurements”).
Altimeter mode measurement
This type of measurement is performed only when the watch is in the
Altimeter Mode. As soon as you enter the Altimeter Mode, measurements are
taken every five seconds for the first three minutes. After that, measurements
are taken every two minutes. The display unit for Altimeter Mode
measurements is 5 m (20 feet), and the measurement range is 0 to 6,000 m
(0 to 19,680 feet).
• The measured altitude may be a negative value in cases where there is a
reference altitude value set or because of certain atmospheric conditions.
1998/2198-5
Example: When the initially measured altitude is less than the altitude
alarm setting.
Setting a Reference Altitude
After you set a reference altitude, the watch automatically calculates the
difference between the current altitude and your preset value. The altitude
measurements produced by this watch are subject to error caused by changes
in air pressure. Because of this, we recommend that you set the reference
altitude during your climb whenever one is available.
Altitudealarm
setting
The graphic display would appear as
illustrated here when your current altitude is
700 meters, after you set the altitude alarm
for 1,000 meters and the initial measurement
was 0 meters. Note that seven segments of
the graph are darkened because you are
7/10 of the way to the value set for the altitude
alarm.
1. In the Altimeter Mode, hold down A until
the display clears. After 4 or 5 seconds,
either “OFF” or the current reference
altitude value (if set) will start to flash. The
data flashes because it is selected.
• The “OFF” indicator appears when the
factory setting is being used for the
calibration.
A
B
Current
altitude
AL
AUTO
m
• Segments in the graphic display darken as you approach the altitude alarm
setting. If you descend away from the altitude alarm setting, the darkened
segments are cleared from the graphic display.
• All 10 segments are darkened when you reach or exceed the altitude set for
the altitude alarm.
ALTI
A
S
C
D
E
• If your current altitude is lower than that registered for the initial measurement,
none of the graphic display segments are darkened.
2. Press D to increase the current reference altitude value by 5 m or B to
decrease 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 in increments of 20 feet.
Example: When the initially measured altitude is greater than the altitude
alarm setting.
• You can set the reference altitude within the range of –6,000 m to 6,000 m
Altitude alarm
setting
The graphic display would appear as
illustrated here when your current altitude is
(–19,680 feet to 19,680 feet).
• Pressing B and D at the same time returns to the “OFF” message.
3. After setting the reference altitude you want, press A to return to the
Altimeter Mode.
1,500 meters, after you set the altitude alarm
for 1,000 meters and the initial measurement
was 2,000 meters. Note that five segments
of the graph are darkened because you are
5/10 of the way to the value set for the altitude
About the Altitude Alarm
The altitude alarm sounds for about five seconds whenever the current
altitude matches a preset value. You can press any button to stop the alarm
after it starts to sound.
alarm.
Current
altitude
• Segments in the graphic display darken as you approach the altitude alarm
setting. If you ascend away from the altitude alarm setting, the darkened
segments are cleared from the graphic display.
Example
• All 10 segments are darkened when you reach or exceed the altitude set for
the altitude alarm.
If you set the altitude alarm at 130 meters, it sounds when you pass the 130-
meter mark on your way up and on your way back down.
• If your current altitude is higher than that registered for the initial
measurement, none of the graphic display segments are darkened.
To set the altitude alarm
1. In the Altimeter Mode, hold down A until the display clears. After 4 or 5
seconds, either “OFF” or the current reference altitude value (if set) will
start to flash. The data flashes because it is selected.
To recall altitude measurement data from memory
1. Use C to enter the Recall Mode.
2. Press D to scroll forward through the stored data items or B to scroll
backward.
• Holding down either button scrolls through the data items at high speed.
• The data item that is displayed when you exit the Recall Mode is still
displayed the next time you enter the Recall Mode.
2. Press C to change the selection in the following sequence.
Altitude Alarm Setting
Reference Altitude Setting
3. Press Cto select the altitude alarm setting
display (indicated by the “AL” indicator).
4. Press D to increase the altitude alarm
value by 5 m or Bto decrease 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 setting in increments of 20 feet.
• You can set the altitude alarm setting within
the range of –6,000 m to 6,000 m (–19,680
feet to 19,680 feet).
Altitude alarm indicator
Date
Altitude graph
*
Altitude
A
C
B
D
A
C
B
D
B
D
B
D
B
D
B
AL
AUTO
AUTO
AUTO
AUTO
m
m
m
m
°
C
°
C
°
C
P
RECALL
A
S
RECALL
A
S
RECALL
A
S
ALTI
A
S
D
E
E
Mode indicator
• Press Band Dat the same time to change
the setting to “0”.
Temperature
[ Initial Display ]
[ Final Display ]
5. After setting the altitude alarm value, press
A to return to the Altimeter Mode.
It shows nine segments between the maximum and minimum altitudes
achieved during a memory measurement. The segments indicate how
altitude changed during the measurement.
*
To switch the altitude alarm on and off
1. In the Altimeter Mode, hold down A until the display clears. After 4 or 5
seconds, either “OFF” or the current reference altitude value (if set) will
start to flash. The data flashes because it is selected.
• The maximum and minimum altitudes achieved during a measurement
operation are also stored in memory. When the maximum altitude is recalled,
the message “MAX” alternates every second with the date in the upper
display. The message “MIN” appears for the minimum altitude.
• Measured data is stored in memory even if an error occurs during the
measurement. For details on errors, see “WARNING INDICATORS”.
2. Press E to switch the altitude alarm on and off.
• The indicator “
AL
” is shown on the display while the altitude alarm is on.
3. After switching the altitude alarm on or off, press A to return to the
Altimeter Mode.
• If the altitude alarm is on, the altitude alarm indicator remains on the display
when you change to another mode.
To delete data from memory
The following procedure deletes a entire set (from start measurement to end
measurement) of memory data.
About the graphic display
In the Altimeter Mode, the graphic display normally indicates the counting of
the current time’s seconds. When a memory measurement operation is being
performed while the altitude alarm is on, however, the watch automatically
divides the graphic display into 10 equal parts. Each part represents 1/10 of the
difference between the first altitude measured by the memory measurement
operation and the value you set as the altitude alarm. The graphic representation
gives you some idea of how much farther you must go to reach the altitude
indicated by the altitude alarm setting.
Important!
You cannot delete any of the data being produced by a currently ongoing
memory measurement operation (indicated when “AUTO” is flashing on the
display). You can, however, delete data from another, already completed
measurement operation.
B
1. In the Recall Mode, display the initial data
of the set of memory data you want to
delete.
• Display the maximum altitude or the
minimum altitude if you want to delete it.
2. To clear the data, hold down A until the
watch emits a long beep (and until “CLR”
stops flashing on the display).
A
• The graphic representation described below is not shown on the display if
the altitude alarm is switched off.
AUTO
m
°
C
RECALL
A
S
C
D
E
1998/2198-6
To calibrate the barometric pressure
1. Display the barometric pressure and
BAROMETER FUNCTIONS
This watch uses a pressure sensor to measure air pressure. This sensor can
be calibrated.
temperature in the Timekeeping Mode.
2. Hold down A until the display clears.
“OFF” or the temperature value should be
flashing on the display.
3. Press Cto show the barometric pressure
calibration display. At this time, “OFF” or
the barometric pressure value should be
flashing on the display.
A
B
Important!
hPa mb
°
C
The barometer that is 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.
A
S
C
D
• The “OFF” indicator appears when the
factory setting is being used for the
calibration.
E
Example barometer applications
• Before going mountain climbing, you can take readings to find out the
probable upcoming weather.
4. Each press of D increases the displayed barometric pressure by 1 hPa/
mb, while pressing B decreases it. Holding down either button changes
the value at high speed.
• You can predict the weather for golf or other outdoor activities.
• If you have selected inHg as your unit of measurement, the above operations
change the reading by 0.05 inHg.
About barometric measurements
The barometer automatically takes measurements every two hours (starting from
midnight), regardless of what mode you are in. The last measurement result, along
with the current temperature is displayed in the Timekeeping Mode.
• Pressing B and D at the same time returns to the “OFF” display.
5. After calibrating the barometric pressure, press A to return to the
Barometric Pressure/Temperature screen.
• If you do not operate any button for a few minutes while the barometric
pressure digits are flashing, the flashing stops and the watch goes back to
the Barometric Pressure/Temperature screen.
Understanding the barometer screen
1. Use C to enter the Timekeeping Mode.
2. Press D to display the Barometric Pressure/Temperature screen.
• See “Barometric Pressure/Temperature Screen Auto Cancel”.
THERMOMETER FUNCTIONS
A
B
Barometric pressure
1
graph
*
A built-in temperature sensor measures temperature and shows the measured
value on the display. The thermometer can be calibrated.
(unit: 1 hPa/0.05 inHg)
hPa mb
Temperature
°
C
2
Important!
Last measurement
*
P
(updated every 2 hours)
Temperature measurements are affected by your body temperature (while
you are wearing the watch), direct sunlight, and moisture. To achieve a more
accurate temperature measurement, remove the watch from your wrist, place
it in a well ventilated location out of direct sunlight, and wipe off all moisture
from the case. It takes approximately 20 to 30 minutes for the case of the
watch to reach the actual surrounding temperature.
A
S
C
D
E
[ Barometric Pressure/Temperature ]
1 The barometric pressure graph shows the barometric readings for the
past 26 hours. The flashing point on the right of the display is the point for
the last measurement.
2 The display shows “– – – – hPa/mb” (or inHg) if a measured value falls
outside the range of 460 hPa/mb to 1100 hPa/mb (13.55 inHg to 32.45
inHg). The normal display will return as soon as the pressure returns
within the allowable range.
*
*
About temperature measurements
Temperature measurements are taken automatically every five minutes,
regardless of what mode the watch is in. Measured temperature values can
be viewed in the Timekeeping or Altimeter Modes. Temperature measurements
are taken every five seconds for the first three minutes after you display the
Timekeeping Mode’s barometric pressure/temperature display, or after you
enter the Altimeter Mode. After that, temperature measurements are taken
every five minutes.
Using the barometric pressure graph
• Temperature measurement data can be recalled along with altitude
measurement data.
Changes in barometric pressure are caused by changes in the weather and
temperature. The following shows how to interpret the data that appears on
the barometric pressure graph.
Understanding the temperature screen
1. Use C to enter the Timekeeping Mode.
2. Press D to display the Barometric Pressure/Temperature screen.
• See “Barometric Pressure/Temperature Screen Auto Cancel” .
A
rising graph generally means better
weather.
A falling graph generally means deteriorating
weather.
A
B
hPa mb
°
C
Temperature
Note that if there are sudden changes in weather or
P
temperature, the graph line of past measurements
may run off the top or bottom of the display. The entire
graph will become visible once barometric conditions
stabilize.
A
S
C
D
E
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 (460 hPa/mb to 1100 hPa/mb or
13.55 inHg to 32.45 inHg)
• Sensor malfunction
• Dead batteries
[ Barometric Pressure/Temperature ]
• The display shows “– –. – °C” (or °F) if a measured value falls outside the
range of –10.0°C to 60.0°C (14.0°F to 140.0°F). The normal display will
return as soon as the temperature returns within the allowable range.
• For details on viewing the temperature in the Altimeter Mode, see
“Understanding the altimeter display”.
Calibrating the barometric pressure measurement
Calibrating the temperature 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.
The temperature 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 temperature readings produced by the watch, you can adjust it
to correct the error.
Important!
Important!
Incorrectly calibrating 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.
Incorrectly calibrating the temperature measurement of this watch can result in
incorrect readings. Carefully read the following before doing anything.
• Compare the readings produced by the watch with those of another reliable,
accurate thermometer.
• If adjustment is required, remove the watch from your wrist and wait for 20
or 30 minutes to give the temperature of the watch time to stabilize.
1998/2198-7
To calibrate the temperature
ALARM FUNCTIONS
1. Display the barometric pressure/tempera-
ture in the Timekeeping Mode.
A
B
Mode indicator
Alarm No.
Five independent daily alarms can be set.
Each alarm lets you set the hour and minutes.
When the Daily Alarm is on, the alarm sounds
for 20 seconds at the preset time each day.
Press any button to stop the alarm after it
starts to sound.
2. Hold down A until the display clears.
“OFF” or the temperature value should be
flashing on the display.
A
C
B
hPa mb
°
C
• The “OFF” indicator appears when the
factory setting is being used for the
calibration.
A
S
When the Hourly Time Signal is on, the watch
beeps every hour on the hour.
• In the Alarm Mode, the segments in the
graphic display create
C
D
A
E
a
rotational
ADJ
hPa mb
D
movement effect while an alarm is sounding.
3. Each press of D increases the displayed
temperature by 0.1°C while pressing B
decreases it. Holding down either button
changes the value at high speed.
TEMP ADJ
E
°
C
To set alarms
Hour Minutes
A
S
1. Use C to enter the Alarm Mode.
2. Press D to select Alarm 1 through 5.
Graphic display
Alarm on
indicator
• Any time you calibrate the temperature, the message “TEMP ADJ” appears
on the display. This message remains on the display in any mode in which
the temperature is displayed.
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
• If you have selected Fahrenheit as your unit of measurement, the above
operations change the reading by 0.2°F.
• Pressing B and D at the same time returns to the “OFF” display.
4. After calibrating the temperature, press A to return to the Barometric
Pressure/Temperature screen.
Hourly Time Signal
3. After you select an alarm, hold down A until the hour digits flash on the
display. The hour digits flash because they are selected.
• At this time, the alarm is automatically switched on.
• If you do not operate any button for a few minutes while the temperature
digits are flashing, the flashing stops and the watch goes back to the
Barometric Pressure/Temperature screen.
4. Press C to change the selection in the following sequence.
Hour
Minutes
WARNING INDICATORS
5. Press Dto increase the selected digits and Bto decrease them. Holding
down either button changes the selection at high speed.
Warning indicators appear whenever any of the conditions described below
occur. Appearance of a warning indicator causes any measurement operation
that is currently underway to stop. Warning indicators appear in the upper
display, and this causes “– – –” to replace any directional, altitude, barometer,
or temperature values on the display.
• The format (12-hour or 24-hour) of the alarm time matches the format you
selected for normal timekeeping.
• When setting the alarm time using the 12-hour format, take care to set the
time correctly as morning (no indicator) or afternoon (P).
6. After you set the alarm, press A to return to the Alarm Mode.
Abnormal Magnetic Field Indicator
To switch an alarm or the Hourly Time Signal on and off
1. In the Alarm Mode, press D to select an alarm or the Hourly Time Signal.
2. When the alarm or Hourly Time Signal you want to is selected, press Eto
switch it on and off.
This indicator appears whenever the Digital
Compass has a problem obtaining a correct
reading. This condition could indicate that
the watch is within a very high magnetic field,
and so you should try moving to another
location. Also, see “Digital Compass
Precautions” for further information on
conditions that cause errors.
Indicates alarm is ON.
A
Indicates Hourly Time Signal is ON.
S
• If any alarm is on, the alarm on indicator (A ) is shown on the display when
you change to another mode.
Low Battery Indicator
This message indicates that battery power is
too low to perform the measurement. It
appears whenever battery power drops below
To test the alarm
Hold down D while in the Alarm Mode to sound the alarm.
a certain level, or when you try to use this
watch under very cold conditions (below about
–10.0°C/14.0°F).
If the “BAT” message appears because of use under cold conditions, it should
clear (and normal operation should return) after the watch is brought back to
normal temperature.
If battery power is low (indicated “BAT” appears under normal temperatures),
you should have the batteries replaced as soon as possible. Note that
replacement of the batteries causes all memory contents to be cleared.
STOPWATCH FUNCTIONS
Mode indicator
The Stopwatch Functions let you measure
Graphic
display
elapsed time, split times, and two finishes.
The range of the stopwatch is 23 hours, 59
minutes, 59.99 seconds.
Stopwatch functions are available in the
Stopwatch Mode, which you can enter using
C.
1/100 second
A
B
Sensor Malfunction Indicator
This message indicates malfunction of
pressure sensor circuitry. Whenever a sensor
malfunction initially occurs, the “ERR”
• In the Stopwatch Mode, the graphic display
indicates the counting of seconds.
messages flashes on the display and a buzzer
A
S
sounds for three seconds.
C
D
Note that calibrating the Digital Compass may cause the “ERR” message to
appear. In this case, the message does not indicate sensor malfunction, and
should be corrected if you re-calibrate the Digital Compass.
E
Seconds
Hours Minutes
Important!
• If the sensor is malfunctioning when it comes time for a barometric pressure
measurement to be taken, the barometric pressure value appears as
“– – – –” on the display and the corresponding point on the barometric
pressure graph is left blank.
• There may be cases where the “ERR” or “BAT” message is cleared once
you change modes. In this case, you can continue using the watch normally
unless the error warning message reappears.
(a) Elapsed time measurement
D
D
D
D
D
A
A
Start
Re-start
Clear
Stop
Stop
(b) Split time measurement
D
A
A
A
Clear
Split release
Stop
Start
Split
Whenever there is a sensor malfunction, be sure to take the watch to an
authorized CASIO distributor or Service Center as soon as possible.
(c) Split time and 1st-2nd place times
D
A
D
A
Clear
Start
Split
First runner
finishes.
Stop
Split release
Record time of
second runner.
Second runner finishes.
Record time of first runner.
1998/2198-8
Example: To obtain readings that are close to absolute altitude.
QUESTIONS & ANSWERS
When you are out hiking or mountain climbing, calibrate the altimeter using
an altitude value from another source (a signpost or map, for example). Do
this just before you start your altitude measurements.
Question: What causes incorrect direction readings?
Answer:
• Incorrect bidirectional calibration. Perform bidirectional calibration.
Remember that bidirectional calibration is required whenever batteries
are replaced.
• Nearby source of strong magnetism, such as a household appliance, a
large steel bridge, a steel beam, overhead wires, etc., or an attempt to
perform Digital Compass operation on a train, boat, etc. Move away from
large metal objects and try again. Note that digital compass operation
cannot be performed inside a train, boat, etc.
1. At Point A, calibrate the altimeter to 400
meters.
2. Proceed from Point A to Point B, taking
altimeter measurements along the way.
• If you also have altitude data for Point B,
you should again calibrate the altimeter
there.
B
A
400
• Be sure to recalibrate at Point B if changing weather conditions produce
altitude reading errors.
• The following conditions will prevent you from obtaining accurate readings:
Air pressure changes because of changes in the weather
Extreme temperature changes
Question: What causes the Digital Compass to produce
different readings at the same location?
Answer:
• Direction being measured is somewhere between two measurable
directions (N and NNW, for example). The Digital Compass is designed to
indicate any one of 16 different directions. If you move the 12 o’clock
position slightly to the left or right (to move it off of the point between the
two measurable directions), the Digital Compass should consistently
produce the same reading.
• Magnetism generated by nearby high-tension wires are interfering with
reception of terrestrial magnetism. Move away from the high-tension
wires and try again.
Subjecting the watch to strong impact
Precautions Concerning Simultaneous Measurement of Altitude and
Temperature
Though you can perform altitude and temperature measurements at the
same time, you should remember that each of these measurements require
different conditions for best results. With temperature measurement, it is best
to remove the watch from your wrist in order to eliminate the effects of body
heat. In the case of altitude measurement, on the other hand, it is better to
leave the watch on your wrist, because doing so keeps the watch at a
constant temperature, which contributes to more accurate altitude
measurements.
Question: What does it mean when “– – –” appears in place of
a direction?
Answer: This is the abnormal magnetic field indicator. It means that strong
magnetism is being generated nearby. Move away from the source of
strong magnetism and try again.
The following describes what you should do to give priority to either altitude
or temperature.
• To give altitude measurement priority, leave the watch on your wrist or in
any other location where the temperature of the watch is kept constant.
• To give temperature measurement priority, remove the watch from your
wrist and allow it to hand freely from your bag or in another location where
it is not exposed to direct sunlight.
Question: Why am I having problems performing Digital
Compass operations indoors?
Answer: TV, personal computer, speakers, or some other object is interfering
with terrestrial magnetism. Move away from the object causing the
interference or perform the Digital Compass operation outdoors. Indoor
Digital Compass operations are particularly difficult inside ferroconcrete
structures. Remember that you cannot perform Digital Compass operations
inside of trains, airplanes, etc.
Question: How does the barometer work?
Answer: Barometric pressure indicates changes in the atmosphere, and by
monitoring these changes you can predict the weather with reasonable
accuracy. Rising atmospheric pressure indicates good weather, while falling
pressure indicates deterioration weather conditions.
The barometric pressure that you see in the newspaper and on the TV
weather report are measurements corrected to values measured at 0 m sea
level.
Question: How does the altimeter work?
Answer: Generally, air pressure and temperature decrease as altitude
increases. This watch is equipped with a pressure sensor and bases its
altitude measurements on International Standard Atmosphere (ISA) values
stipulated by the International Civil Aviation Organization (ICAO), which
define relationships between altitude, air pressure, and temperature.
Question: What should I do if I lose track of which mode I am in
or lose my way when making settings?
Answer: Hold down the C button for two or three seconds to return to the
Timekeeping Mode. Next, try performing the operation you want again.
ALTITUDE
AIR PRESSURE
472hPa/mb
TEMPERATURE
–24°C
6,000 m
5,500 m
5,000 m
4,500 m
4,000 m
3,500 m
3,000 m
2,500 m
2,000 m
1,500 m
About 6.7hPa/mb per 100 m
–17.5°C
–11°C
–4.5°C
2°C
540hPa/mb
616hPa/mb
701hPa/mb
795hPa/mb
899hPa/mb
1013hPa/mb
About 7hPa/mb per 100 m
About 8hPa/mb per 100 m
About 6.5°C
About 9hPa/mb per 100 m
per 1,000 m
About 10hPa/mb per 100 m
About 11hPa/mb per 100 m
•
The measurement functions built into this watch are not intended for
use in taking measurements that require professional or industrial
precision. Values produced by this watch should be considered as
reasonably accurate representations only.
8.5°C
15°C
1,000 m
500 m
About 12hPa/mb per 100 m
0 m
•
•
When engaging in mountain climbing or other activities in which losing
your way can create a dangerous or life-threatening situation, always
be sure to use a second compass to confirm direction readings.
CASIO COMPUTER CO., LTD. assumes no responsibility for any loss,
or any claims by third parties that may arise through the use of this watch.
Source: International Civil Aviation Organization
ALTITUDE AIR PRESSURE
TEMPERATURE
13.76inHg
–12.2°F
2.0°F
20,000 ft
18,000 ft
16,000 ft
14,000 ft
12,000 ft
10,000 ft
About 0.119inHg per 200 ft
About 0.1315inHg per 200 ft
16.22inHg
19.03inHg
22.23inHg
25.84inHg
29.92inHg
16.2°F
About 0.15inHg per 200 ft
About 3.6°F
per 1,000 ft
30.5°F
44.7°F
59.0°F
8,000 ft
About 0.17inHg per 200 ft
About 0.192inHg per 200 ft
6,000 ft
2,000 ft
4,000 ft
0 ft
About 0.21inHg per 200 ft
Source: International Civil Aviation Organization
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
130m
Rooftop at an altitude of 230m
above sea level
(Relative altitude)
(Altitude above sea level)
Sea
|