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1890-2
To turn the auto light switch on and off
In the Timekeeping Mode, hold down B for two seconds to turn the auto light
switch on (Auto light switch on indicator displayed) and off (Auto light switch
on indicator not displayed).
• In order to protect against running down the batteries, 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.
• The auto light switch on indicator is on the display in all modes while the
auto light switch is turned on.
TIMEKEEPING MODE
Use the Timekeeping Mode to set the current time and date, to take direction
and temperature readings, to select the temperature unit of measurement,
and to calibrate the temperature sensor.
Calibrating the Seconds Count
Use the following procedure to calibrate the
seconds count on a time signal from a radio,
TV, or other source.
1. In the Timekeeping Mode, hold down A
until the seconds digits start to flash on the
display.
2. Press C to set the seconds count to
00
when the time signal you are calibrating to
sounds.
• Pressing C while the seconds count is in
the range of 30 to 59 resets the seconds to
00 and adds 1 to the minutes. If the
seconds count is in the range of 00 to 29,
the minutes count is unchanged.
3. Press A to return to the current time
display.
Setting the Current Time
1. In the Timekeeping Mode, hold down A
until the seconds digits start to flash on the
display.
• The seconds digits are flashing because
they are
selected
.
2. Press D to move the flashing in the
sequence shown below to select other
digits and settings.
3. While hour, minutes, year, month, or day is selected (flashing), press C to
increase the setting or B to decrease it.
• When the 12/24-hour setting is selected, use C to toggle between 12-hour
(
12H) and 24-hour (24H) timekeeping.
4. After the time and date are set the way you want them, press A to return
to the current time screen.
Notes
• The year can be set in the range of 1995 to 2039.
• The day of the week is automatically displayed in accordance with the
month and day setting.
• The watch’s built-in full automatic calendar automatically make allowances
for different month lengths and leap years. Once you set the date, there
should be no reason to change it except after the replacement of the
watch’s batteries.
Taking a Direction and Temperature Reading
1. In the Timekeeping Mode, place the watch
on a flat surface or (if you are wearing the
watch), make sure that your wrist is
horizontal (in relation to the horizon).
2. Press C to start a reading operation.
• After about one second, the current
temperature, the direction pointers and
direction value appear on the display.
• You can repeat steps 1 through 2 as many
times as you like.
3. Next, you can adjust the rotary direction
bezel so that the “N” or “L” mark is aligned
with the magnetic north pointer. This aligns
all of the markings on the bezel with their
applicable directions.
• After you are finished taking direction
readings, press D to return to the current
time and date screen.
• The watch automatically returns to the
current time and date screen if you do not
perform any operation for about 60 minutes.
Notes
• To take a temperature reading only, simply press C in the Timekeeping
Mode. This also performs a direction reading, but the pointers and direction
value will not be accurate if the watch is not oriented correctly.
• The direction value shows the direction that the 12 o’clock position of the
watch is pointing as an angle value. See “Direction Values” for details.
• After you take a direction and temperature reading in the Timekeeping
Mode, temperature readings continue to be performed every two minutes.
• See “Temperature and Direction Reading Precautions” and “Digital
Compass Precautions” for other important information about taking
direction and temperature readings.
Calibrating the Temperature Reading
The temperature sensor of this watch is calibrated at the factory before
shipment and further adjustment is normally not required. If you notice
significant error in the temperature readings produced by this watch, you can
adjust it to correct the error.
Important!
Incorrectly calibrating the temperature reading 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.
To calibrate the temperature reading
1. In the Timekeeping Mode, press C to
perform a direction and temperature
reading.
2. Hold down A until the temperature value
starts to flash on the display.
3. Press of C to increase the displayed
temperature by 0.1°C. Pressing B
decreases it.
• To return the temperature reading to its
initial factory default calibration, press B
and C at the same time.
• You can change the displayed temperature value by ±9.9°C. The overall
temperature reading adjustment range is –10.0°C to 60.0°C.
4. After calibrating the temperature, press A to return to the measurement
result screen.
• To return to the current time and date screen, press D.
A
D
B
C
P
Day of week
Seconds
Hour : Minutes
PM indicator
Month – Day
A
D
B
C
P
Hour
Seconds
Day
Minutes
12/24-Hour
Format
Year
Month
Direction value
Magnetic north pointer
Temperature
A
D
B
C
P
C
N
N
E
E
S
E
S
S
W
W
N
W
P
C
N
E
S
W
A
D
B
C
P
C