G-Shock DWG-100UJ-9JR - Manual (Page 2)

2059-2
PULSE MEASUREMENT
The pulse measurement function uses a photosensor to detect the
movement of blood in your fingertip, which it then converts to a pulse
value. A biofeedback feature also lets you set a target pulse and monitor
your actual pulse in relation to your target.
Entering and Exiting the Pulse Measurement Mode
1. Pressing P in any mode enters the Pulse Measurement Mode,
indicated by xx flashing on the display.
▲
▲
[Pulse Measurement] [Biofeedback]
Photosensor
Press B .
Target pulse
• The flashing indicates that the watch is waiting for you to place your finger
on the photosensor (standby). To stop the flashing, press
P again. Each
press of P turns standby on ( xx flashing) and off ( xx not flashing).
•
Press B to toggle between the pulse measurement screen and the
biofeedback screen.
2. Press C to return to the Timekeeping Mode.
Measuring Your Pulse
1. Make sure the pulse measurement screen
is in standby ( xx flashing).
• If xx is not flashing, press P .
2. Lightly place your finger onto the
photosensor to start pulse measurement.
• Measurement continues for two minutes
or until you remove your finger from the
photosensor.
Wave indicator
Pulse value
Pulse graph
•
Within about 7 to 15 seconds, a value showing the initial measurement
result appears on the display, along with a bar on the pulse graph and
a wave indicator that are synchronized with your pulse.
Note
• The pulse value on the display is updated every 2 to 3 seconds.
•
Take care you do not change your finger pressure or move your finger
too much while it is on the photosensor.
• Either of the following indicates that the watch was unable to obtain a
good pulse reading.
xx : Unstable measured value
E : No pulse detected
•
If you have problems getting a value to appear, press P to stop the
measurement procedure, and see “Tips on Placing Your Finger on the
Photosensor”.
Biofeedback
The biofeedback feature lets you compare your measured pulse with a
target pulse rate you preset. You can use this feedback to check the effect
of relaxation techniques designed to reduce your resting heart rate.
Joggers and endurance athletes can use this information to maintain their
optimum heart rate during training and to monitor post-workout recovery.
Caution!
Always stop running and stand in a safe place whenever
performing a pulse measurement. Measuring your pulse while
running creates the risk of personal injury to you and others.
To set your target pulse
1. In the Pulse Measurement Mode, hold
down A until the target pulse value flashes
on the display.
2. Press B to increase the target pulse value
or L to decrease it.
• You can set the target pulse value within the range of 30 to 200.
3. Press A to return to the biofeedback screen.
To perform a biofeedback operation
1. Make sure the biofeedback screen is in
standby ( xx flashing).
• If xx is not flashing, press P .
2. Lightly place your finger onto the
photosensor to start pulse measurement.
• Measurement continues for two minutes
or until you remove your finger from the
photosensor.
• The target pulse value flashes whenever
the current pulse value reading is within
± 5 beats of the target.
• See the “Note” of “Measuring Your Pulse”
for important pulse measurement
precautions.
Target pulse
Pulse value
Pulse Graph
The meaning of the data that appears in the pulse graph depends on
whether you are performing a pulse measurement screen operation or
biofeedback screen operation.
Pulse Measurement Screen
• The detection level indicates the relative quality of the pulse detection.
Level 0 (no dots) is the worst, while Level 5 is the best.
• A level of 4 or 5 indicates that the pulse reading is fairly reliable.
Previous 15 measurements
Pulse measurements
Latest measurement
Detection level (Level 4)
Graph scale (when first
measurement is in the
range of 80 to 89)
100 – 110
90 – 99
80 – 89
70 – 79
60 – 69
• On the pulse measurement screen, the graph shows readings that are
relative to the first reading. The first reading is automatically defined as
the central point. Because of this, the value range of each dot on the
graph is adjusted with each new measurement, based on the first
reading.
•
The graph scale of the pulse measurement screen graph automatically
shifts up or down whenever a measured value is outside the current
graph scale.
80 – 89
70 – 79
60 – 69
50 – 59
40 – 49
Graph scale (when
first measurement
is in the range of
60 to 69) 120 – 129
110 – 119
100 – 109
90 – 99
80 – 89
Graph scale (when
first measurement
is in the range of
100 to 109)
Biofeedback Screen
•
This graph indicates the difference between
your preset target pulse rate and the
actually measured pulse rate.
• The detection level is the same as that
described for the pulse measurement
screen above.
• See “To set your target pulse” for
information about setting a target value.
Latest measurement
+16 or more
+6 to +15
–5 to +5
–6 to –15
–16 or lower
STOPWATCH
The Stopwatch functions let you record elapsed time, lap times, and split
times. The range of the stopwatch is 99 hours, 59 minutes, 59 seconds.
You can also store lap and split times in memory.
•
Stopwatch functions are available in the Stopwatch Mode, which you
can enter using
C .
• For the first 10 hours, the screen shows hours, minutes, seconds, and
1/100 second. After 10 hours, the screen format changes to show
hours, minutes, and seconds.
[Hours, Minutes, Seconds, 1/100 second] [Hours, Minutes, Seconds]
Lap time
Split time
• The lap time appears in the upper part of the display. You can use this
function to time how long it takes to complete a specific portion (such
as a single lap) of a race.
• The split time appears in the lower part of the display. You can use this
function to time how long it takes to get from the start to a specific
point in a race.
Measuring Elapsed Time
1. Press B to start the stopwatch.
2. Press B to stop the stopwatch.
• You can resume the measurement operation by pressing B again.
3. Press L to clear the stopwatch to all zeros.
Recording Lap and Split Times
1. Press B to start the stopwatch.
2. Press L to display the timing up to that point. Stopwatch timing
continues internally.
• When you do, times are remaining on the display for about 10
seconds, and then the display changes back automatically to the
stopwatch display.
3. You can repeat step 2 as many times as you want.
4. Press
B to stop the time measurement.
5. Press L to clear the stopwatch to all zeros.