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To calibrate the barometric pressure
1. In the Timekeeping Mode, use D to
A
B
2. Hold down A until the display clears.
C
hPa mb
C
D
3. Press C to show the barometric pressure calibration display. At this time,
"OFF" or the barometric pressure value should be flashing on the display.
The "OFF" indicator appears when the factory setting is being used for the
calibration.
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.
If you have selected inHg as your unit of measurement, the above operations
change the reading by 0.05 inHg.
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 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 goes back to
the Barometric Pressure/Temperature Display.
THERMOMETER FUNCTIONS
A built-in temperature sensor measures temperature and shows the measured
value on the display. The thermometer can be calibrated.
Important!
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.
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.
Temperature measurement data can be recalled along with altitude
measurement data. For details, see About memory data.
Understanding the temperature display
1. Use C to enter the Timekeeping Mode.
2. Press D to display the Barometric Pressure/Temperature Display.
A
Temperature
P
C
( Barometric Pressure/Temperature Display )
The display shows "– –.– C" (or F) if a measured value falls outside the
range of –20.0 C to 60.0 C (–4.0 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 temperature measurement
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!
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.
display the barometric pressure and
temperature.
"OFF" or the temperature value should be
flashing on the display.
B
C
hPa mb
D
To calibrate the temperature
1. In the Timekeeping Mode, use D to display
A
B
2. Hold down A until the display clears.
C
hPa mb
The "OFF" indicator appears when the
factory setting is being used for the
C
D
calibration.
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.
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 Display.
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 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 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!
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.
Applications
When no reference altitude is preset:
The watch produces approximate altitude readings.
When a reference altitude is preset:
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.
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.
To determine the difference in altitude between your house and another
location, set the reference altitude to 0 m at your house, and then check the
reading when you arrive at the other location.
When mountain climbing, you can input
the altitude from a marker as your
reference altitude, which will then let
you know your altitude as your climb
proceeds. The following conditions will
prevent you from obtaining accurate
readings:
When air pressure changes because of changes in the weather
Extreme temperature changes
When the watch itself is subjected to strong impact
About altitude measurements
There are two types of altitude measurements: those for displayed data
(Altimeter Mode measurement) and those for memory data (memory
measurements; See Memory measurements).
the barometric pressure and temperature.
"OFF" or the temperature value should be
flashing on the display.
400
1675-3
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