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Operation Guide 3260 3280
E-100
Illumination
The display of the watch is illuminated for easy reading in
the dark.
The watch’s auto light switch turns on illumination
automatically when you angle the watch towards your
face.
• The auto light switch must be turned on (page E-102)
for it to operate.
To turn on illumination manually
Press
B
in any mode to illuminate the display.
• You can use the procedure below to select either 1.5
seconds or 3 seconds as the illumination duration.
When you press
B
, the display will remain illuminated
for about 1.5 seconds or 3 seconds, depending on the
current illumination duration setting.
E-101
• The above operation turns on illumination regardless of the current auto light switch
setting.
• Illumination is disabled during time calibration signal reception, while configuring
sensor measurement mode settings, and during bearing sensor calibration.
To change the illumination duration
1. In the Timekeeping Mode, hold down
A
until
SET
starts to flash and the city name
starts to scroll on the display.
• This is the setting screen.
2. Keep pressing
D
until
LT1
or
LT3
is displayed.
• See step 3 under “To change the current time and date settings manually” (page
E-45) for information about how to scroll through setting screens.
3. Press
E
to toggle the illumination duration between three seconds (
LT3
displayed)
and 1.5 seconds (
LT1
displayed).
4. After the settings are the way you want, press
A
to exit the setting screen.
E-102
About the Auto Light Switch
Turning on the auto light switch causes
illumination to turn on, whenever you position your
wrist as described below in any mode.
Moving the watch to a position that is parallel
to the ground and then tilting it towards you
more than 40 degrees causes illumination to
turn on.
Warning!
•
Always make sure you are in a safe place whenever you are reading the
display of the watch using the auto light switch. Be especially careful when
running or engaged in any other activity that can result in accident or injury.
Also take care that sudden illumination by the auto light switch does not
startle or distract others around you.
More than
40°
Wear the watch on the
outside of your wrist
More than
40°
Wear the watch on the
outside of your wrist
E-103
•
When you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle or operating a motorcycle or any other motor
vehicle. Sudden and unintended operation of the auto light switch can create
a distraction, which can result in a traffic accident and serious personal injury.
Note
• The auto light switch is always disabled, regardless of its on/off setting, when any
one of the following conditions exists.
While an alarm is sounding
During sensor measurement
While a bearing sensor calibration operation is being performed in the Digital
Compass/Thermometer Mode
While a receive operation is in progress
E-104
To turn the auto light switch on and off
In the Timekeeping Mode, hold down
B
for about three
seconds to toggle the auto light switch on (
LT
displayed)
and off (
LT
not displayed).
• The auto light switch on indicator (
LT
) is on the display
in all modes while the auto light switch is turned on.
• The auto light switch turns off automatically whenever
battery power drops to Level 4 (page E-14).
Illumination Precautions
• Frequent display illumination can run down the battery quickly and require
charging.
The following guidelines give an idea of the charging time required to recover from
a single illumination operation.
Approximately five minutes exposure to bright sunlight coming in through a window
Approximately 50 minutes exposure to indoor fluorescent lighting
Auto light switch
on indicator
Auto light switch
on indicator
E-105
• The electro-luminescent panel that provides illumination loses power after very long
use.
• Illumination may be hard to see when viewed under direct sunlight.
• Illumination turns off automatically whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
Auto light switch precautions
• Wearing the watch on the inside of your wrist, movement of your arm, or vibration of
your arm can cause frequent activation of the auto light switch and illumination of
the display. To avoid running down the battery, turn off the auto light switch
whenever engaging in activities that might cause frequent illumination of the
display.
• Note that wearing the watch under your sleeve while the auto light switch is turned
on can cause frequent illumination of the display and can run down the battery.
E-106
• Illumination may not turn on if the face of the watch is more than
15 degrees above or below parallel. Make sure that the back of
your hand is parallel to the ground.
• Illumination turns off after the preset illumination duration (page
E-100), even if you keep the watch pointed towards your face.
• Static electricity or magnetic force can interfere with proper
operation of the auto light switch. If illumination does not turn
on, try moving the watch back to the starting position (parallel
with the ground) and then tilt it back towards your face again. If
this does not work, drop your arm all the way down so it hangs
at your side, and then bring it back up again.
• You may notice a very faint clicking sound coming from the
watch when it is shaken back and forth. This sound is caused
by mechanical operation of the auto light switch, and does not
indicate a problem with the watch.
E-107
Graphic Area
The information shown in the graphic area depends on the current mode.
Mode Graphic Area
Timekeeping Mode Timekeeping Mode seconds
World Time Mode World Time Mode hours
Alarm Mode Timekeeping Mode hours
Stopwatch Mode Stopwatch Mode minutes
CountdownTimer Mode CountdownTimer Mode minutes
Graphic AreaGraphic Area
E-108
Button Operation Tone
The button operation tone sounds any time you press one of the watch’s buttons. You
can turn the button operation tone on or off as desired.
• Even if you turn off the button operation tone, the alarm, Hourly Time Signal, and
Countdown Timer Mode alarm all operate normally.
E-109
To turn the button operation tone on and off
1. In the Timekeeping Mode, hold down
A
until
SET
starts to flash and the city name starts to scroll on the
display.
• This is the setting screen.
2. Keep pressing
D
until
KEY
or
MUTE
is displayed.
• See step 3 under “To change the current time and
date settings manually” (page E-45) for information
about how to scroll through setting screens.
3. Press
E
to toggle the button operation tone on
(
KEY
) and off (
MUTE
).
4. After the settings are the way you want, press
A
to exit
the setting screen.
Note
• The mute indicator is displayed in all modes when
the button operation tone is turned off.
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Mute indicator
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Mute indicator