G-Shock DWG-100UJ-9JR - Manual (Page 4)

2059-4
BACKLIGHT
The backlight uses an EL (electro-luminescent)
panel that causes the entire display to glow for
easy reading in the dark. The watch’s auto light
switch automatically turns on the backlight
when you angle the watch towards your face.
•
The auto light switch must be turned on
(indicated by the auto light switch on
indicator) for it to operate.
• See “Backlight Precautions” for other important information about
using the backlight.
Turning on the Backlight Manually
In the Timekeeping or Pulse Measurement Modes, press L to illuminate
the display for about two seconds.
• The above operation turns on the backlight regardless of the current
auto light switch setting.
Auto light switch
on indicator
Warning!
• Never try to read your watch when mountain climbing or hiking in
areas that are dark or in areas with poor footing. Doing so is
dangerous and can result in serious personal injury.
• Never try to read your watch when running where there is danger
of accidents, especially in locations where there might be
vehicular or pedestrian traffic. Doing so is dangerous and can
result in serious personal injury.
• Never try to read your watch when riding on a bicycle or when
operating a motorcycle or any other motor vehicle. Doing so is
dangerous and can result in a traffic accident and serious
personal injury.
• 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.
About the Auto Light Switch
Turning on the auto light switch causes the backlight to turn on for about
two seconds, whenever you position your wrist as described below in
any mode (except for the Pulse Measurement Mode). Note that the auto
light switch of this watch will operate only when available light is below a
certain level. It does not turn on the backlight under bright light. You can
select one of three trigger levels at which the backlight will turn on.
Moving the watch to a position that is parallel to the ground and then
tilting it towards you more than 40 degrees causes the backlight to light.
More
than
40
°
Parallel
to ground
To select the auto light switch trigger level
1. In any mode, hold down C until the trigger
level flashes on the display.
2. Press B or L to cycle through the three
trigger level settings.
• L-1 : High sensitivity (Turns on auto light
switch as soon as lighting becomes dim.)
L-2 : Normal sensitivity
L-3 : Low sensitivity (Does not turn on
auto light switch until it becomes relatively
dark.)
3. Press A , C , or P to return to the
Timekeeping Mode.
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 displayed) and off ( AUTO not displayed).
• The auto light switch on indicator ( AUTO ) is on the display in all
modes (except for the Pulse Measurement Mode) while the auto light
switch is turned on.
• Press B to toggle between the date screen and temperature screen.
Trigger level
REFERENCE
This section contains more detailed and technical information about
watch operation. It also contains important precautions and notes about
the various features and functions of this watch.
Auto Return Feature
• After you perform an operation in the Recall and Countdown Alarm
Modes, pressing
C returns to the Timekeeping Mode.
•
If you leave a screen with flashing digits on the display for two or three
minutes without performing any operation, the watch automatically saves
anything you have input up to that point and exits the setting screen.
Data and Setting Scrolling
The B and L buttons are used in various setting screens to scroll through
the available settings on the display. In most cases, holding down these
buttons during a scroll operation scrolls through the settings at high speed.
Timekeeping
• The day of the week is automatically displayed in accordance with the
date (year, month, and day) settings.
•
The year can be set in the range of 1995 to 2039.
• The watch’s built-in full automatic calendar automatically makes
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 battery.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping
Mode is also applied in the Alarm Mode.
• With the 12-hour format, the P (PM) indicator appears to the left of the
hour digits for times in the range of noon to 11:59 pm. The A (AM)
indicator is shown from midnight to 11:59 am.
•
With the 24-hour format, times are indicated in the range of 00:00 to
23:59, with 24 indicator.
Tips on Placing Your Finger on the Photosensor
The following are useful tips you can use to ensure successful pulse
measurements.
Tips On Placing Your Finger On The Photosensor
Note the following points if you experience problems with
measurements.
Correct
Place your finger so that the Photosensor is
covered by the pads of the finger, not the
fingertip. If your fingernail turns white, it
means you are pressing too hard. Try
pressing down a bit with your finger first, and
then make adjustments as you view the
display of the watch to see if measurements
are being taken.
Note
If you have trouble keeping your finger still
after physical exercise, try grasping your other
hand as shown in the illustration.
Incorrect
•
Finger too upright.
• Finger not covering photosensor completely.
• Finger too far forward on the Photosensor.
Tips on Taking Measurements
Use the following techniques to ensure correct pulse measurements
every time.
• Do not change the pressure of your finger on the Photosensor.
•
Do not move your finger on the Photosensor.
• Warm up your finger before taking measurements.
•
Avoid bright light when taking measurements.
• During measurements, keep still and do not talk.
• Once you start the measurement procedure, place your finger on the
Photosensor as soon as possible.
• Remove rings or any other items that might restrict normal blood flow.
Important!
The following factors may make it difficult or even impossible to achieve
good pulse readings with this watch.
• Severe arrhythmia
Pulse waves are unstable, so they cannot be detected properly by the
Photosensor.
•
Arteriosclerosis or other circulatory problems
Circulation at the fingertips is bad, so the Photosensor cannot detect
pulse waves.
•
Thick fingertip skin
Thick skin impedes the passage of light through the fingertip. This
makes it hard for the Photosensor to take readings.