Display Illumination
You can illuminate the display by pressing a
button. The watch also has an auto light
function that automatically illuminates the
display whenever the watch is angled towards
your face for reading.
Note
●
Illumination will turn off automatically if
an alarm starts to sound.
●
Illumination is disabled during a GPS
signal receive operation for time
adjustment. Display illumination is also
disabled while measurement by a
sensor is in progress.
Illuminating the Display
Manually
Pressing (B) in any mode turns on illumination.
Auto Light
If Auto Light is enabled, face illumination will
turn on automatically whenever the watch is
positioned at an angle of 40 degrees or more.
40
degrees
or more
Important!
●
Auto Light may not operate properly
when the watch is at a horizontal angle
of 15 degrees or greater from
horizontal as shown in the illustration
below.
●
Electro-static charge or magnetism
can interfere with proper auto light
operation. If this happens, try lowering
your arm and then angle it towards
your face again.
●
When moving the watch you may note
a slight rattling sound. This is due to
operation of the auto light switch,
which determines the current
orientation of the watch. It does not
indicate malfunction.
Note
●
Auto Light is disabled when any one of
the conditions below exists.
ー
Alarm, timer alert, or other beeper
sounding
ー
While a GPS signal is being received
for time adjustment
●
If Auto Light is enabled, face
illumination may be delayed if you
angle the watch towards your face
while a compass, altitude, barometric
pressure, or temperature reading
operation is being performed.
Configuring the Auto Light
Setting
1.
Enter the Timekeeping Mode.
l
Rotary Switch
2.
Press (A).
This displays the Timekeeping Mode
setting screen.
3.
Rotate the rotary switch to move the
pointer to [LIGHT].
4.
Press the rotary switch.
5.
Rotate the rotary switch to move the
pointer to [AUTO LIGHT].
6.
Press the rotary switch.
7.
Rotate the rotary switch to move the
pointer to [ON] (enabled) or [OFF]
(disabled).
●
[LT] is displayed on the Timekeeping
Mode BASIC screen while Auto Light is
enabled.
8.
Press the rotary switch to exit the setting
screen.
This returns to the Timekeeping Mode
setting screen.
9.
Press (C) as many times as necessary to
exit the setting screen.
Specifying the Illumination
Duration
You can select either 1.5 seconds or three
seconds as the illumination duration.
1.
Enter the Timekeeping Mode.
l
Rotary Switch
2.
Press (A).
This displays the Timekeeping Mode
setting screen.
3.
Rotate the rotary switch to move the
pointer to [LIGHT].
4.
Press the rotary switch.
5.
Rotate the rotary switch to move the
pointer to [DURATION].
6.
Press the rotary switch.
7.
Rotate the rotary switch to display the light
duration you want to use.
[1.5 SEC.]: 1.5-second illumination
[3.0 SEC.]: 3-second illumination
8.
Press the rotary switch to exit the setting
screen.
This returns to the Timekeeping Mode
setting screen.
9.
Press (C) as many times as necessary to
exit the setting screen.
Operation Guide 3452
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