Timex M640 - Manual (Page 78)

3. Press MODE until your desired mode appears. You can
view heart rate information in Time of Day, Chrono, or
Timer Modes.
4. While standing at least six feet (two meters) away from
other heart rate monitors or other sources of radio or
electrical interference, press the HEART RATE button on
your Watch. The hollow heart rate icon will appear on
the display indicating the Watch is searching for a signal from the
Sensor. When the Watch begins receiving a signal, the outlined heart
becomes solid and begins pulsing.
5. Begin your activity.
NOTE: The Watch automatically records your heart rate and other
statistical data about your activity (available in Review Mode) only if
you operate Chrono Mode during your activity.
6. If the Watch is set to alert you when you go above or below your
chosen target heart rate zone press and hold HEART RATE button to
turn the audible alert off. Otherwise it will continue beeping until you
return to your target zone. When you are turning the audible alert off,
you will see the message HOLD ALERT OFF. Continue pressing HEART
RATE button until you see the message ALERT OFF. Conversely, when
you are turning the audible alert on, you will see the message HOLD
ALERT ON. Continue pressing HEART RATE button until you see the
message AUDIBLE ALERT ON.
7. When you have finished your activity in Chrono Mode, press
STOP/SET/RESET to stop recording data for the activity.
7
However, if you cannot use any of the procedures described in Heart
Zones
® Tools for Success (U.S. customers only), you might consider using
an age-based method.
Begin with the number 220 and then subtract your age. For instance, a 35
year old would begin with 220 and subtract 35 (her age), which gives an
estimated maximum heart rate of 185. Once you know your maximum
heart rate, you can set the zones described in the table on the previous
page.
D
D
I
I
G
G
I
I
T
T
A
A
L
L H
H
E
E
A
A
R
R
T
T R
R
A
A
T
T
E
E M
M
O
O
N
N
I
I
T
T
O
O
R
R
B
B
e
e
f
f
o
o
r
r
e
e
Y
Y
o
o
u
u
B
B
e
e
g
g
i
i
n
n
Once you have determined your fitness goal and maximum heart rate,
Timex recommends you input this information into the HRM SETUP Mode.
This will allow you to tailor your Digital Heart Rate Monitor to your
personal parameters. For information on HRM Setup Mode, refer to pages
25 to 30.
T
T
o
o
U
U
s
s
e
e
Y
Y
o
o
u
u
r
r
D
D
i
i
g
g
i
i
t
t
a
a
l
l
H
H
e
e
a
a
r
r
t
t
R
R
a
a
t
t
e
e
M
M
o
o
n
n
i
i
t
t
o
o
r
r
For more detailed information on the use and care of your Digital Heart
Rate Monitor, refer to the Fitness Sensor User Guide that shipped with
your product.
1. Wet the Digital Heart Rate Sensor pads.
2. Center the Sensor on your chest with the Timex ® logo facing up and
out and fasten it firmly, just below your sternum.
6