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E-32
Taking Temperature Readings
This watch uses a temperature sensor to measure temperature.
To take temperature readings
1. While in the Timekeeping Mode, press
E
to enter the Thermometer
Mode.
• TEMP will appear in the lower display and temperature
measurement will start. After about one second, the measurement
reading will appear in the upper display.
• The watch will continue to take temperature readings every fi ve
seconds for one or two minutes.
2. Press
E
to return to the Timekeeping Mode.
• The watch will return to the Timekeeping Mode automatically if you
do not perform any operation for about one or two minutes after
entering the Thermometer Mode.
Temperature
E-33
Temperature
• Temperature is displayed in units of 0.1°C (or 0.2°F).
• The displayed temperature value changes to
- - -
°C (or °F) if a
measured temperature falls outside the range of –10.0°C to 60.0°C
(14.0°F to 140.0°F). The temperature value will reappear as soon as
the measured temperature is within the allowable range.
Display Units
You can select either Celsius (°C) or Fahrenheit (°F) for the displayed temperature value. See “To specify
the temperature unit” (page E-35).
Temperature Sensor Calibration
The temperature sensor built into the watch is calibrated at the factory and normally require no further
adjustment. If you notice serious errors in the temperature readings produced by the watch, you can
calibrate the sensor to correct the errors.
Important!
• Incorrectly calibrating the temperature sensor can result in incorrect readings.
Carefully read the following before doing anything.
–
Compare the readings produced by the watch with those of another reliable and 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.
Temperature
E-34
To calibrate the temperature sensor
1. Take a reading with another measurement device to determine the
exact current temperature.
2. With the watch in the Timekeeping Mode, press
E
to enter the
Thermometer Mode.
3. Hold down
A
for about two seconds until the temperature reading
disappears from the upper display. Release
A
at this time, which will
cause the temperature reading to fl ash, which indicates the setting
mode.
4. Use
E
(+) and
B
(–) to calibrate the temperature value with the reading of another instrument.
• Each press of a button changes the temperature value in units of 0.1°C (0.2°F).
• To return the currently fl ashing value to its initial factory default setting, press
E
and
B
at the
same time.
5. Press
A
to complete calibration and restart the temperature reading operation.
Thermometer Precautions
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 all moisture from the
case. It takes approximately 20 to 30 minutes for the case of the watch to reach the actual surrounding
temperature.
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E-35
Specifying Temperature Unit
Use the procedure below to specify the temperature unit to be used in the Thermometer Mode.
Important!
When
TOKYO
is selected as the Home City, the temperature unit is set
automatically to Celsius (
°C
). This setting cannot be changed.
To specify the temperature unit
1. In the Timekeeping Mode, press
E
to enter the Thermometer Mode.
2. Hold down
A
for about two seconds until the temperature reading
disappears from the upper display. Release
A
at this time, which will
cause the temperature reading to fl ash, which indicates the setting
mode.
3. Press
D
to display the current temperature unit in the upper display.
4. Press
E
to toggle the temperature unit between
°C
(Celsius) and
°F
(Fahrenheit).
5. After the setting is the way you want, press
A
to exit the setting
screen.
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E-36
Checking the Current Time in a Different Time Zone
You can use the World Time Mode to view the current time in one of 31 time zones (48 cities) around the
globe. The city that is currently selected in the World Time Mode is called the “World Time City”.
• You also can swap the current World Time City and Home Time City in the World Time Mode (page E-38).
To enter the World Time Mode
Use
D
to select the World Time Mode as shown on page E-8.
• The mode dial hand will point to
WT
, and the current city code and city
name will scroll across the lower display. After that, the city code will
remain shown in the lower display. You can scroll the city code and
city name again by pressing
A
.
• The hour, minute, and second hands will indicate the current
Timekeeping Mode time.
To confi gure World Time City and summer time settings
1. In the World Time Mode, use
E
(East) to scroll through city codes.
• For details about city codes, see the “City Code Table” at the back
of this manual.
• Pressing down
B
and
E
at the same time will jump to the UTC
city code.
Current time in the currently
selected World Time City
Currently selected
World Time City
E-37
2. To toggle between summer time (
DST
in the upper display) and
standard time (
DST
not displayed), hold down
A
.
• Using the World Time Mode to change the DST setting of the
city code that is selected as your Home City also will change the
Timekeeping Mode time DST setting.
• Note that you cannot switch between standard time/daylight saving
time (DST) while UTC is selected as the World Time City.
• Note that the standard time/daylight saving time (DST) setting
affects only the currently selected time zone. Other time zones are
not affected.
Hold down
A
DST indicator
E-38
Swapping the Home City and World Time City
You can use the procedure below to swap your Home Time City with your World Time City. This function
comes in handy for those who often travel between two different time zones.
• You need to confi gure starting Home City and World Time City settings before performing the
procedure below.
To confi gure Home City settings (page E-13)
To confi gure World Time City and summer time settings (page E-36)
To swap your Home Time and World Time Cities
In the World Time Mode, press
A
and
B
at the same time.
• This causes the Home City time (indicated by the main hour and minute hands) and the World Time
City time (shown on the display) to be swapped with each other.
Home City [TYO] Time Home City [NYC] Time
Current World Time
City and Time
A
and
B
New World Time
City and Time
E-39
Using the Stopwatch
The stopwatch measures elapsed time, split times, and two fi nishes.
To enter the Stopwatch Mode
Use
D
to select the Stopwatch Mode as shown on page E-8.
The mode dial hand will move to
STW
.
To perform an elapsed time operation
E
E E E A
Start Stop (Resume) (Stop) Reset
To pause at a split time
E A A E A
Start Split
(
SPL
appears in
the lower display.)
Split release Stop Reset
Hours
Minutes 1/100 second
Seconds
Operation Guide 5476
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