Timex Heart Rate Monitor NA685 095000 User Manual

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©2007 Timex Corporation. TIMEX is a registered trademark of Timex  
Corporation. INDIGLO is a registered trademark of Indiglo Corporation in the  
US and other countries. HEART ZONES is a trademark of Sally Edwards.  
página 89  
página 131  
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To Manually Determine a Recovery Heart Rate . . . . . . . . . . . . . . . . . . . .22  
OVERVIEW  
Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23  
To Review Activity Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
Review Mode Notes & Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25  
Congratulations!  
With your purchase of the Timex® Digital Heart Rate Monitor you have  
hired a new personal trainer. Your Digital Heart Rate Monitor offers you the  
ability to track, store, and analyze key indicators of your personal fitness  
level.  
HRM Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25  
To Set a Target Heart Rate Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26  
Preset Target Heart Rate Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26  
Manual Target Heart Rate Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27  
To Set Other Heart Rate Statistical Data . . . . . . . . . . . . . . . . . . . . . . . . .28  
Digital Heart Rate Monitor Notes & Tips . . . . . . . . . . . . . . . . . . . . . . . . .29  
You will find your Digital Heart Rate Monitor to be a user-friendly fitness  
tool. But, like any new device, you should take the time to familiarize  
yourself with its components to optimize its usefulness.  
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30  
To Set the Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30  
Alarm Mode Notes & Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31  
So, check out the features and functions of your Digital Heart Rate Monitor  
to develop a basic understanding of this fitness tool. But most of all, enjoy  
your new partner on the road to increased fitness!  
Care & Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32  
Digital Heart Rate Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32  
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32  
Digital Heart Rate Sensor Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32  
Watch Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34  
INDIGLO® Night-Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34  
Water Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34  
Watch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34  
Digital Heart Rate Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35  
A Fit Heart  
Recent fitness findings indicate that anyone can get fit and stay fit without  
being overzealous. It can be as simple as:  
O
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Exercising 3 to 4 times per week.  
Exercising for 30 to 45 minutes during each exercise session.  
Exercising at the appropriate heart rate.  
Warranty & Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35  
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37  
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39  
Note: Always consult your physician before beginning any exercise  
program.  
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Heart rate represents the effects of exercise on all parts of the body.  
Selecting the appropriate heart rate zone conditions the heart, lungs, and  
muscles to perform at optimal levels to get and keep your body in shape.  
Watch Buttons  
Once set, your Digital Heart Rate Monitor can automatically show you  
when you are in the exercise zone you choose and signal you when you  
are not. It can help keep your body exercising at an intensity level that can  
help you achieve your desired fitness objectives without over- or under-  
exercising.  
STOP/SET/RESET  
HEART RATE  
INDIGLO® night-light  
MODE  
WARNING:  
START/SPLIT  
This is not a medical device and is not recommended for use by  
persons with serious heart conditions.  
Interference with the radio signal, poor contact between your skin and the  
Digital Heart Rate Sensor, or other factors may prevent accurate  
transmission of heart rate data.  
NOTE: The specific use for these buttons varies by mode. Refer to each  
mode for more information on how to use the Watch buttons.  
Display Icons  
You will see the hollow heart icon as the Watch searches for a signal  
from the Digital Heart Rate Sensor.  
X
You will see the heart icon fill once the Watch has located a signal  
Y
from the Digital Heart Rate Sensor. This icon will continue to flash as  
long as the Watch continually receives a signal from the Digital Heart  
Rate Sensor.  
You will see the stopwatch icon to indicate that the Watch is timing  
your activity in Chrono Mode.  
w
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Visit www.timex.com/fitness/ for fitness and training tips using  
Timex® Heart Rate Monitors.  
You will see the hourglass icon to indicate that the Watch is timing  
your activity in Timer Mode.  
H
Determining Your Optimal Heart Rate Zone  
You will see the alarm clock icon to indicate you have set the  
alarm to alert you at a designated time.  
b
N
There are five basic heart rate target zones. Simply select a percent of  
maximum (%MAX) heart rate that matches your zone and the fitness goal  
you want to achieve during a particular exercise.  
You will see the melody icon to indicate that you have set the  
hourly chime to sound every hour on the hour.  
% MAX  
Goal  
Benefit  
Resources  
ZONE  
Print Resources  
In addition to this manual, your Digital Heart Rate Monitor includes these  
valuable resources:  
50% to 60% Light exercise  
Maintain a healthy heart and get fit  
Lose weight and burn fat  
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60% to 70% Weight management  
70% to 80% Aerobic base building  
80% to 90% Optimal conditioning  
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Fitness Sensors User Guide: Complete information for set-up,  
operation, and maintenance of your Digital Heart Rate Sensor.  
Increase stamina and aerobic  
endurance  
O
Heart Zones® Tools for Success (U.S. customers only):  
Information to use your Digital Heart Rate Monitor in conjunction with  
the Heart Zones® Training System fitness program, meant to help you to  
increase the strength and endurance of your heart.  
Sustain excellent fitness condition  
Achieve superb athletic condition  
90% to  
Elite athletic training  
100%  
Web Resources  
The Timex® Websites offer beneficial information to help you optimize your  
Digital Heart Rate Monitor.  
Before you can set your target zone, you first need to determine your  
maximum heart rate. You can use many methods to estimate your  
maximum heart rate. The booklet Heart Zones® Tools For Success included  
in your Personal Heart Rate Monitor packaging (U.S. customers only)  
provides excellent procedures and Timex recommends you use one of  
these methodologies.  
O
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Register your product at www.timex.com.  
Visit www.timex.com/hrm/ for more information on Timex® Heart  
Rate Monitors, including product features.  
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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.  
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.  
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.  
DIGITAL HEART RATE MONITOR  
5. Begin your activity.  
Before You Begin  
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.  
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.  
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.  
To Use Your Digital Heart Rate Monitor  
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.  
7. When you have finished your activity in Chrono Mode, press  
STOP/SET/RESET to stop recording data for the activity.  
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8. Press MODE until you see Review Mode. This Mode includes heart rate  
and other statistical data about your workout. See pages 23 to 25 for  
more information about Review Mode.  
TIME OF DAY  
Your Watch can act as an ordinary timepiece, displaying the time, date, and  
day for two different time zones using a 12- or 24-hour format. Note that  
you must independently set the time of day for each time zone.  
Digital Heart Rate Monitor Notes & Tips  
The Watch and the Digital Heart Rate Sensor need to be within three feet  
(one meter) of each other to function properly. If the Watch is not receiving  
heart rate information, you may receive the message NO HRM DATA on the  
Watch display. Try the following:  
INDIGLO® night-light  
Press to light the Watch.  
STOP/SET/RESET  
MODE  
Press to move to the next  
mode, digit, or setting  
option or group.  
Press to start or complete  
the setting process.  
O
Shorten the distance between the Watch and the Digital Heart Rate  
Sensor.  
HEART RATE  
O
Adjust the position of the Digital Heart Rate Sensor and elastic chest  
strap.  
Press to decrease or  
toggle the setting item or  
switch display views.  
START/SPLIT  
Press to peak at or switch  
time zones or increase or  
toggle the setting item.  
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Make sure the Digital Heart Rate Sensor pads are wet.  
Check the battery in the Digital Heart Rate Sensor and replace it if  
necessary.  
To Set or Adjust the Time, Date, and Audibles  
1. Press MODE until Time of Day Mode appears, showing the current time.  
O
Move away from other heart rate monitors or other sources of radio or  
electrical interference.  
2. Press and hold STOP/SET/RESET until the words HOLD TO SET briefly  
appear on the display followed by SET TIME with the number 1 flashing  
in the lower right corner.  
3. PRESS START/SPLIT (+) or HEART RATE (-) to toggle between the  
primary (T1) and secondary (T2) time zones.  
4. Press MODE (NEXT) to begin setting the time for the chosen time zone.  
The time will appear on the display with the hour value flashing.  
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5. Make the desired adjustment as indicated in the table on the next two  
pages.  
Setting Group  
Date  
Adjustment  
6. Press MODE (NEXT) to move to the next setting option.  
Press START/SPLIT (+) to increase the date value or  
HEART RATE (-) to decrease the date value.  
7. Press and hold STOP/SET/RESET (DONE) to save your changes and exit  
the setting process.  
Press START/SPLIT (+) or HEART RATE (-) to toggle between  
the 12- and 24-hour formats. In the 12-hour format the AM  
and PM time indicators will also appear above the seconds  
on the time display.  
12- or 24-hour  
Format  
For this Watch, you can make the Time of Day adjustments described in  
the tables that appear on this page and the next page.  
Setting Group  
Hour  
Adjustment  
Press START/SPLIT (+) or HEART RATE (-) to toggle between  
the appearance options for the month and the day. The  
options include Month Day (MM-DD) or Day Month  
(DD.MM). For example, March 15 can appear as 3-15 (MM-  
DD) or 15.03 (DD.MM).  
Appearance of  
the Month and  
Day  
Press START/SPLIT (+) to increase the hour value or  
HEART RATE (-) to decrease the hour value.  
Press START/SPLIT (+) to increase the minute value or  
HEART RATE (-) to decrease the minute value.  
Minute  
Second  
Press START/SPLIT (+) or HEART RATE (-) to reset the  
seconds to zero.  
Press START/SPLIT or HEART RATE to toggle between  
turning the chime on and turning the chime off. When you  
turn the chime on, you will see the chime icon and the  
Watch will emit a beep every hour on the hour.  
Hourly Chime  
Button Beep  
Press START/SPLIT (+) to move forward through the days of  
the week or HEART RATE (-) to move backward through the  
days of the week.  
Day of Week  
Month  
Press START/SPLIT or HEART RATE to toggle between  
turning the button beep on and turning the button beep  
off. When you turn the button beep on, your Watch will  
emit a beep every time you press a button other than the  
INDIGLO® button.  
Press START/SPLIT (+) to move forward through the months  
or HEART RATE (-) to move backward through the months.  
NOTE: To quickly change the value being set, press and hold START/SPLIT  
(+) or HEART Rate (-).  
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With the chronograph or timer running along with the Digital Heart  
Rate Sensor, you can change the Time of Day Mode display by pressing  
HEART RATE. Choose from:  
To Switch Time Zones  
The Watch can track two time zones (T1 and T2). To look at the second  
zone in Time of Day Mode, press START/SPLIT. T1 or T2 will flash in the  
lower right corner indicating the alternate time zone. You can switch from  
T1 to T2 or T2 to T1 by using these steps:  
1) Time of Day with Day/Month/Date;  
2) Zone Trainer bar/Heart Rate;  
3) Zone Trainer bar/Lap or Split Time;  
4) Heart Rate/Lap or Split Time;  
5) Lap or Split Time/Heart Rate; or  
6) Heart Rate only.  
1. Press and hold START/SPLIT until HOLD FOR T1 or HOLD FOR T2  
appears.  
2. Continue to hold until the time switches and the Watch beeps.  
Time of Day Notes & Tips  
O
You can return to Time of Day Mode from any other mode on the  
Watch by pressing MODE until the time of day appears.  
Time of Day Example  
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The Watch does not automatically adjust for Daylight Savings Time.  
When switching between Standard Time and Daylight Savings Time,  
you must manually adjust the hour value.  
Assume that you live in San Francisco and work with a client in Singapore.  
Like all busy people, it is imperative you keep track of time, so you set T1  
to your local time. But it is also important to have a quick reminder of your  
client’s time, so you set T2 to Singapore time. With both time zones  
available, you can quickly check your client’s time or even switch your  
Watch to display T2 when you travel to Singapore.  
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The Watch automatically moves from February 28 to March 1. To  
accommodate a leap year, you must manually set the date value to  
February 29. The Watch will then automatically move from February 29  
to March 1.  
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At any time during the setting process, you can save your changes and  
return to the main time display by pressing STOP/SET/RESET.  
While setting the Watch, if you do not press any buttons on the Watch  
for a period of 2 to 3 minutes, the Watch will automatically save  
whatever changes you have made and will exit the setting process.  
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To Operate the Chrono  
1. Press MODE until CHRONO appears.  
CHRONO  
Chrono Mode operates as the main workout data center for your Watch. It  
can record elapsed time for up to 100 hours. It can also recall information  
for up to 30 laps.  
2. Press and hold STOP/SET/RESET to clear any Chrono data.  
3. Press STOP/SET/RESET to choose between Lap or Split time format  
display. You cannot select a display format if the chronograph is  
running or is not reset.  
INDIGLO® night-light  
STOP/SET/RESET  
Press to light the Watch.  
Press to clear chrono  
4. Press START/SPLIT to begin timing. The stopwatch icon (w)will appear  
on the display.  
data, choose between lap  
MODE  
or split display format, or  
Press to move to the next  
pause or stop the chrono.  
mode, or immediately  
5. Press START/SPLIT again to take a lap or split. The Watch will display  
the lap or split number, time average heart rate (for the lap or split) if  
the data from Digital Heart Rate Sensor is being received.  
display a new lap or split.  
START/SPLIT  
Press to begin timing,  
take a lap or split, or  
continue timing after a  
pause.  
HEART RATE  
Press to switch display  
views.  
6. Press MODE to immediately display new lap or split information OR  
wait for a few seconds and the Watch will automatically begin to  
display data for a new lap or split.  
7. Press STOP/SET/RESET to stop timing when you want to take a break  
or you reach the end of your activity.  
Chrono Terminology  
O
NOTE: The recovery heart rate timer will begin automatically (for 1 or  
2 minutes, as user set) after pressing STOP/SET/RESET if the Watch is  
receiving data from the Digital Heart Rate Sensor. For more information  
about recovery heart rate, see pages 21 and 22.  
Chronograph: The chronograph records timed segments for the  
duration of your activity.  
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Lap: Lap time records individual segments of your activity.  
8. Press START/SPLIT to continue timing OR press and hold  
STOP/SET/RESET to clear the chronograph display and set it back to  
zero.  
Split: Split time records the total elapsed time since the beginning of  
your current activity.  
O
Taking a lap or split: When you take a lap or split, the chrono-graph  
records one time and automatically begins timing a new one.  
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The Zone Trainer bar allows you to graphically view where your heart is  
in relation to the low and high ends of your selected target heart rate  
zone. A left arrow (t) will blink if you go below the target heart rate  
zone and a right arrow (u) will blink if you go above the target heart  
rate zone.  
Chrono Mode Tips & Tricks  
O
Press MODE to switch to Time of Day Mode while running the  
chronograph. The stopwatch icon (W) will appear to indicate the  
chronograph is still operating.  
O
When you operate the Watch in Chrono Mode with the Digital Heart  
Rate Sensor, you will accumulate heart-related data in Review Mode,  
including:  
1) Amount of time your heart rate stays within your target heart rate  
zone;  
See the Watch picture on page 14 for another view of the Zone Trainer  
bar.  
2) Average, peak, and minimum heart rates;  
3) Total calories burned;  
4) Latest recovery heart rate; and  
Chrono Mode Example  
5) Average heart rate for each recorded lap or split.  
Recently you heard that the run/walk method can help you increase your  
overall endurance and burn more calories. This method calls for running  
for a period of time followed by a short period of walking. You decide to  
use Chrono Mode to help you try this method. You press START/SPLIT to  
begin your run and then after 10 minutes of running you press  
START/SPLIT again and walk for 2 minutes. You continue using these two  
timing sequences until you have completed a 60 minute run/walk.  
O
With the chronograph running along with the Digital Heart Rate Sensor,  
you can change the Chrono Mode display by pressing HEART RATE.  
Choose from:  
1) Lap or Split #/Lap or Split Time;  
2) Zone Trainer bar/Heart Rate;  
3) Zone Trainer bar/Lap or Split Time;  
4) Heart Rate/Lap or Split Time;  
5) Lap or Split Time/Heart Rate; or  
6) Heart Rate only.  
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START/SPLIT (+) or HEART Rate (-).  
TIMER  
4. Press MODE (NEXT) to move to the next value for hours, minutes, and  
seconds  
Timer Mode allows you to set a fixed time from which the Watch counts  
down to zero (i.e., 10, 9, 8, ...).  
5. Press STOP/SET/RESET (DONE) to save your changes and exit the  
setting process.  
INDIGLO® night-light  
Press to light the Watch.  
STOP/SET/RESET  
Press to start or complete  
the setting process or  
pause or reset the timer.  
To Operate the Timer  
1. Press START/SPLIT to start the timer countdown. The hourglass icon  
( H ) will appear on the display.  
2. Pause the countdown by pressing STOP/SET/RESET.  
MODE  
Press to move to the next  
mode or digit.  
HEART RATE  
3. Resume the countdown by pressing START/SPLIT again or reset the  
timer by pressing and holding STOP/SET/RESET again until the words  
HOLD TO RESET briefly appear on the display followed by the original  
countdown time.  
Press to decrease the  
setting item or switch  
display views.  
START/SPLIT  
Press to increase the  
setting item or start or  
resume timing.  
4. When the timer reaches zero, a brief alert will sound and the INDIGLO®  
night-light will flash. Press any button to silence the alert.  
NOTE: You can press any button in Timer Mode to silence the alert that  
sounds when the timer reaches zero.  
Timer Mode Notes & Tips  
To Set the Timer  
1. Press MODE until TIMER appears.  
O
You can press MODE within Timer Mode to switch the display to  
another mode without disrupting the operation of the timer. The  
hourglass icon will continue to display to indicate the timer is  
operating.  
2. Press STOP/SET/RESET until SET briefly appears on the display followed  
by the timer with the hours value flashing.  
O
You can repeat the countdown by immediately pressing START/SPLIT at  
the end once the alert stops.  
3. Press START/SPLIT (+) to increase the values or HEART RATE (-) to  
decrease the value. This applies for hours, minutes, and seconds.  
NOTE: To quickly change the value being set, press and hold  
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O
With the timer running along with the Digital Heart Rate Sensor, you  
can change the Timer Mode display by pressing HEART RATE. Choose  
from:  
RECOVER  
About Recovery Heart Rate  
Heart rate recovery provides an indicator of fitness and training level. As  
you become more fit, your heart rate should return more quickly to a  
lower heart rate value at the end of your activity, indicating a higher level  
of cardiovascular fitness.  
1) Countdown Time;  
2) Zone Trainer bar/Heart Rate;  
3) Zone Trainer bar/Countdown Time;  
4) Heart Rate/Countdown Time;  
5) Countdown Time/Heart Rate; or  
6) Heart Rate only.  
A slower recovery rate might also indicate a need to take a  
break from training due to fatigue, illness, or other factors.  
Your recovery rate represents the change in your heart rate over a period  
of time. Your Digital Heart Rate Monitor records the change in your heart  
rate for either a 1- or 2-minute period.  
Timer Mode Example  
As part of your overall health plan, you decide to take a 30-minute walk  
during your lunch hour two times per week. To help keep track of time so  
you do not return late from your lunch hour, you set the timer to 15  
minutes. After 15 minutes the Watch beeps telling you to begin walking  
back to your office. You immediately start another 15-minute countdown,  
helping you track how much time you have to return to your office.  
INDIGLO® night-light  
Press to light the Watch.  
MODE  
STOP/SET/RESET  
Press to move to the next  
Press to toggle between a  
mode.  
1- or a 2-minute recovery  
time or to stop or reset  
the recovery timer.  
START/SPLIT  
Press to start or restart  
the recovery timer.  
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5. You can continue to initiate a 1- or 2-minute recovery period by  
repeating step 3.  
To Manually Determine a Recovery Heart Rate  
While running the chronograph, the recovery heart rate timer will begin  
automatically after pressing STOP/SET/RESET if the Watch is receiving data  
from the Digital Heart Rate Sensor. You can also manually initiate a  
recovery heart rate after stopping the chronograph by following these  
steps.  
REVIEW  
Review Mode allows you to recall overall information recorded by the  
chronograph for your most recent activity.  
1. Press MODE until RECOVER appears.  
INDIGLO® night-light  
Press to light the Watch.  
NOTE: From this display, you set the duration of the automatic  
recovery heart rate recorded at the end of a chronograph session.  
MODE  
Press to move to the next  
mode.  
2. Press STOP/SET/RESET to toggle between a 1- or a 2-minute recovery  
time.  
HEART RATE  
Press to scroll backward  
through activity data.  
3. Press START/SPLIT. The top line of the Watch display will show the  
heart rate at the beginning of the recovery period followed by your  
current heart rate. The bottom line will show the time remaining in  
your recovery countdown.  
START/SPLIT  
Press to scroll forward  
through activity data.  
NOTE: The Watch cannot record a recovery unless it is receiving by  
valid heart rate data from the Digital Heart Rate Sensor. Without a  
current heart rate, the display will read NO HRM DATA at the end of the  
recovery period. If the starting heart rate is lower than the ending heart  
rate, the display will read NO REC.  
Data groupings appear in the order listed.  
O
O
O
Total Time: The amount of time the chronograph was running during  
your activity.  
Time in Zone: The amount of time during an activity when your heart  
rate is between the lower and upper target zone limits you set.  
4. After a 1- or 2-minute countdown, the Watch will beep indicating the  
end of the recovery period. The Watch will capture your heart rate a  
second time, subtract the second value from the first value and display  
the difference as the recovery.  
Average Heart Rate: The average heart rate achieved during an  
activity.  
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O
O
O
Peak Heart Rate: The highest recorded heart rate during an  
activity.  
Review Mode Notes & Tips  
O
Once you restart the chronograph from zero (the reset position) for  
your next activity, you erase summary data from your previous activity,  
except recovery heart rate.  
Minimum Heart Rate: The lowest recorded heart rate during an  
activity.  
O
Without the Digital Heart Rate Sensor, you will see total time and Lap  
or Split Recall in Review Mode, along with your last recorded recovery  
heart rate.  
Total Calories: The number of calories burned during an activity. This  
number is dependent on the weight you entered when you set your  
Digital Heart Rate Monitor, your heart rate during the activity, and the  
time you spent in the activity.  
HRM SETUP  
O
O
Recovery Heart Rate: The result of the most recent recovery heart  
rate calculation.  
HRM Setup Mode allows you to select and set key pieces of statistical data  
that will be used by your Digital Heart Rate Monitor.  
Lap or Split Recall: The amount of time and average heart rate for  
each segment of your workout.  
INDIGLO® night-light  
Press to light the Watch.  
STOP/SET/RESET  
To Review Activity Data  
1. Press MODE until REVIEW appears.  
MODE  
Press to enter or exit the  
mode or move to the next  
digit or setting group.  
Press to start or complete  
the setting process.  
2. Press START/SPLIT (+) or HEART RATE (-) to scroll through activity data.  
HEART RATE  
Press to turn the audible  
ON or OFF or decrease or  
toggle the setting item.  
START/SPLIT  
Press to select a target  
heart rate zone or  
increase or toggle a  
setting item.  
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4. Press MODE to save your selected target heart rate zone and exit HRM  
Setup Mode. When you leave HRM Setup Mode, the Watch will use the  
target heart rate zone you have selected as the basis for all HRM-based  
operations and tracking.  
To Set a Target Heart Rate Zone  
You can choose one of the Preset Target Heart Zones or set the Manual  
Target Heart Rate Zone for a customized target heart rate zone.  
Preset Target Heart Rate Zones  
The preset heart rate zones described in the table below correspond to  
your maximum heart rate (MHR) value.  
Manual Target Heart Rate Zone  
The Manual Target Heart Rate Zone allows you to customize your lower  
and upper target heart rate zone limits. You might use the Manual Target  
Heart Rate Zone where the 10% range in the Preset Heart Rate Zones is  
either too large or too small a range for your exercise goals.  
Zone  
Lower Limit  
50%  
Upper Limit  
60%  
1
2
3
4
5
To set the Manual Target Heart Rate Zone:  
1. Press MODE until HRM Setup Mode appears.  
2. Press START/SPLIT until MANUAL appears.  
60%  
70%  
70%  
80%  
80%  
90%  
3. Press STOP/SET/RESET to enter the setting process. You will see the  
word MANUAL flashing on the display.  
90%  
100%  
Determine the zone you want to use by reviewing the table on page 5.  
To choose a Preset Target Heart Rate Zone:  
4. Press MODE (NEXT) to begin setting the upper and lower target heart  
rate zones.  
1. Press MODE until HRM Setup Mode appears.  
5. Press START/SPLIT (+) to increase the flashing value, HEART RATE (-) to  
decrease the flashing value, or MODE (NEXT) to move to the next value.  
2. Press START/SPLIT to cycle through the target heart rate zones (labeled  
ZONE 1 to ZONE 5).  
6. When you have finished setting the upper and lower target heart rate  
zone limits, you can press STOP/SET/RESET (DONE) to save your  
settings and exit the setting process or you can continue to set or  
adjust other heart rate statistical data.  
3. Press HEART RATE to turn the audible alert ON or OFF. If you turn on  
the audible alert, the Watch will beep to alert you if you go above or  
below your chosen target heart rate zone and continue beeping until  
you return to your target zone.  
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Note: If your upper and lower targets are set less than 5 BPM apart,  
the Watch will adjust the lower limit to be 5 BPM less than the upper  
limit.  
You can make the adjustments described in the table.  
Setting Group  
Display  
Description  
You can enter your current weight and  
whether your weight appears in pounds  
(lbs) or kilograms (kg) This number is used  
to help calculate how many calories you  
burn during your activity. Your recorded  
weight cannot go below 22 lbs (10 kg) or  
above 550 lbs (250 kg).  
To Set Other Heart Rate Statistical Data  
In addition to selecting a Target Heart Rate Zone, it is important that you  
set your weight, maximum heart rate, and heart rate display. Accurate  
information used by these options helps tailor your Digital Heart Rate  
Monitor to your specific fitness needs.  
Weight  
To set other heart rate statistical data:  
Your maximum heart rate value is used to  
determine your preset target heart rate  
zones, and it is also used as a reference to  
display your heart rate in terms of percent  
of maximum (%MAX). Maximum heart rate  
cannot be set below 80 or above 240  
beats per minute (BPM).  
1. Press MODE until HRM Setup Mode appears.  
2. Press STOP/SET/RESET to enter the setting process. You will see your  
selected target heart rate zone flashing on the display.  
Maximum  
Heart Rate  
3. Make the desired adjustment by pressing START/SPLIT (+) or HEART  
RATE (-). In some setting groups pressing START/SPLIT (+) will increase  
a value and pressing HEART RATE (-) will decrease a value. At other  
times pressing START/SPLIT (+) or HEART RATE (-) will toggle between  
two options or cycle through a setting group.  
You can choose whether your heart rate  
will display as beats per minute (BPM) or  
as a percent of maximum (%MAX).  
Heart Rate  
Display  
4. Press MODE (NEXT) to move to the next digit you want to set or the  
next setting group.  
5. Press STOP/SET/RESET to save your changes and exit the setting  
process.  
Digital Heart Rate Monitor Notes & Tips  
O
At any time during the setting process, you can save your changes and  
return to the main heart rate display by pressing STOP/SET/RESET  
(DONE).  
6. Press MODE to exit HRM Setup.  
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also flash if you have set the Watch to 12-hour format.  
O
While setting the Watch, if you do not press any buttons on the Watch  
for a period of 2 to 3 minutes, the Watch will automatically save  
whatever changes you have made and exit the setting process.  
3. Press START/SPLIT (+) to increase the hour value or HEART RATE (-) to  
decrease the hour value.  
NOTE: To quickly change the value being set, press and hold  
START/SPLIT (+) or HEART Rate (-).  
ALARM  
You can use your Watch as an alarm clock to alert you at a pre-set time.  
When the Watch reaches the scheduled alarm, the alarm tone sounds and  
the INDIGLO® night light flashes for a period of 20 seconds.  
4. Press MODE (NEXT) to move to the minute value.  
5. Press START/SPLIT (+) to increase the minute value or HEART RATE (-)  
to decrease the minute value.  
INDIGLO® night-light  
Press to light the Watch.  
STOP/SET/RESET  
6. Press STOP/SET/RESET (DONE) to save your changes and exit the  
setting process.  
Press to start or complete  
the setting process.  
MODE  
Press to move to the next  
mode or digit.  
Alarm Mode Notes & Tips  
O
To turn an alarm ON or OFF without entering the setting state, press  
START/SPLIT while in Alarm Mode.  
HEART RATE  
START/SPLIT  
Press to decrease the  
setting value.  
Press to increase the  
setting value or turn an  
the alarm ON or OFF.  
O
O
If you change any alarm settings, you automatically turn the alarm on.  
When you set the alarm, the alarm clock icon (b) appears on the  
display in Time of Day Mode.  
NOTE: When the alarm sounds, you can press any button on the Watch to  
silence it.  
O
O
While the alarm sounds, you can silence it by pressing any button on  
the Watch.  
To Set the Alarm  
1. Press MODE until Alarm Mode appears.  
If you do not silence the alarm before the alert finishes, a backup alarm  
will sound after 5 minutes.  
2. Press and hold STOP/SET/RESET until SET briefly appears on the display  
followed by time with the hour value flashing. The AM/PM value will  
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This product uses a CR2032 lithium battery for the Digital Heart Rate  
Monitor. To change the battery:  
CARE & MAINTENANCE  
Digital Heart Rate Monitor  
BATTERIA  
O
O
O
To avoid build up of materials that can interfere with the Digital Heart  
Rate Monitor’s ability to receive a valid pulse, rinse the Digital Heart  
Rate Sensor with fresh water.  
Do not clean the Digital Heart Rate Monitor sensor or chest strap with  
abrasive or corrosive materials. Abrasive cleaning agents may scratch  
the plastic parts and corrode the electronic circuit.  
APRIRE  
BATTERIA  
1. Open the Sensor battery lid with a coin, turning the coin  
counterclockwise.  
Do not subject the Digital Heart Rate Monitor to excessive force, shock,  
dust, temperature, or humidity. Such treatment may result in  
malfunction, a shorter electronic life span, damaged batteries, or  
distorted parts.  
2. Replace the battery with a new CR2032, 3V lithium battery with (+)  
facing you, taking care not to touch the two contacts and discharge  
the battery.  
O
O
Do not tamper with the Digital Heart Rate Monitor’s internal  
components. Doing so will terminate the Monitor’s warranty and may  
cause damage.  
3. When you have finished inserting the battery, press the reset button  
(located in the lower left corner) with a toothpick or straightened paper  
clip and close the lid with a coin -- screwing in a clockwise direction.  
The Digital Heart Rate Monitor contains no user-serviceable parts,  
except batteries.  
To test the new battery after you have inserted it:  
1. Move away from any possible sources of electrical or radio  
interference.  
Battery  
Digital Heart Rate Sensor Battery  
2. Wet the Digital Heart Rate Sensor pads and securely fasten the chest  
strap below your sternum.  
If your heart rate readings become erratic or stop, you may need to  
replace the battery on your Digital Heart Rate Sensor. You can change the  
battery yourself without any special tools.  
3. While wearing the Watch, press the HEART RATE button. A set of three  
dashes (- - -) and the flashing heart rate icon will appear on the display.  
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4. If you do not see a flashing heart icon on your Watch, reinstall the  
sensor battery.  
WARNING: TO MAINTAIN WATER-RESISTANCE, DO NOT PRESS ANY  
BUTTONS UNDER WATER.  
Digital Heart Rate Monitor  
NOTE: It is not necessary for a heart rate value to appear on the display  
during this test.  
O
Your 30 Meter Water Resistant Digital Heart Rate Monitor and chest  
strap withstand water pressure to 60 p.s.i. (equals immersion to 98  
feet or 30 meters below sea level).  
Watch Battery Replacement  
When the battery of the Watch is running low, the display or INDIGLO®  
night-light will dim. This Watch uses a CR2032 lithium battery.  
WARNING: THIS UNIT WILL NOT DISPLAY YOUR HEART RATE WHEN  
OPERATED UNDER WATER.  
To avoid the possibility of permanently damaging the Watch, TIMEX  
STRONGLY RECOMMENDS TAKING YOUR MONITOR TO A LOCAL RETAILER  
OR JEWELER TO HAVE THE BATTERY REPLACED.  
WARRANTY & SERVICE  
INDIGLO® Night-Light  
Timex International Warranty (U.S. Limited Warranty)  
Press the INDIGLO® button to activate the night-light. This  
electroluminescent technology  
illuminates the Watch display at night and in low light conditions.  
Your Timex® Digital Heart Rate Monitor is warranted against manufacturing  
defects by Timex Corporation for a period of ONE YEAR from the original  
purchase date. Timex and its worldwide affiliates will honor this  
International Warranty.  
Water Resistance  
Watch  
Please note that Timex may, at its option, repair your Heart Rate Monitor  
by installing new or thoroughly reconditioned and inspected components  
or replace it with an identical or similar model.  
IMPORTANT: PLEASE NOTE THAT THIS WARRANTY DOES NOT COVER  
DEFECTS OR DAMAGES TO YOUR HEART RATE MONITOR:  
O
O
O
Your 30 Meter Water Resistant Watch withstands water pressure to 60  
p.s.i. (equals immersion to 98 feet or 30 meters below sea level).  
The Watch is only water-resistant as long as the lens, pushbuttons, and  
case remain intact.  
Timex recommends rinsing your wrist monitor with fresh water after  
exposure to salt water.  
1. after the warranty period expires;  
2. if the Heart Rate Monitor was not originally purchased from an  
authorized Timex retailer;  
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3. from repair services not performed by Timex;  
4. from accidents, tampering or abuse; and  
For the U.S., please call 1-800-328-2677 for additional warranty  
information. For Canada, call 1-800-263-0981. For Brazil, call +55 (11) 5572  
9733. For Mexico, call 01-800-01-060-00. For Central America, the  
Caribbean, Bermuda and the Bahamas, call (501) 370-5775 (U.S.). For Asia,  
call 852-2815-0091. For the U.K., call 44 020 8687 9620. For Portugal, call  
351 212 946 017. For France, call 33 3 81 63 42 00. For Germany, call 49 7  
231 494140. For the Middle East and Africa, call 971-4-310850. For other  
areas, please contact your local Timex retailer or Timex distributor for  
warranty information. In Canada, the U.S. and in certain other locations,  
participating Timex retailers can provide you with a postage-paid, pre-  
addressed Heart Rate Monitor Repair Mailer for your convenience in  
obtaining factory service.  
5. lens or crystal, strap or band, Heart Rate Monitor case, attachments or  
battery. Timex may charge you for replacing any of these parts.  
THIS WARRANTY AND THE REMEDIES CONTAINED HEREIN ARE EXCLUSIVE  
AND IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING  
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR  
PARTICULAR PURPOSE.  
TIMEX IS NOT LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL  
DAMAGES. Some countries and states do not allow limitations on implied  
warranties and do not allow exclusions or limitations on damages, so  
these limitations may not apply to you. This warranty gives you specific  
legal rights and you may also have other rights which vary from country to  
country and state to state.  
Service  
If your Timex® Digital Heart Rate Monitor should ever need servicing, send  
it to Timex as set forth in the Timex International Warranty or addressed  
to:  
To obtain warranty service, please return your Heart Rate Monitor to  
Timex, one of its affiliates or the Timex retailer where the Heart Rate  
Monitor was purchased, together with a completed original Repair Coupon  
or, in the U.S. and Canada only, the completed original Repair Coupon or a  
written statement identifying your name, address, telephone number and  
date and place of purchase. Please include the following with your Heart  
Rate Monitor to cover postage and handling (this is not a repair charge): a  
US$ 7.00 check or money order in the U.S.; a CAN$6.00 cheque or money  
order in Canada; and a UK£2.50 cheque or money order in the U.K. In other  
countries, Timex will charge you for postage and handling. NEVER INCLUDE  
ANY ARTICLE OF PERSONAL VALUE IN YOUR SHIPMENT.  
HOTLINE WATCH SERVICE, P.O. Box 2740, Little Rock, AR 72203  
For service questions, call 1-800-328-2677.  
For your convenience in obtaining factory service, participating Timex  
retailers can provide you with a pre-addressed Heart Rate Monitor Repair  
Mailer.  
See the Timex International Warranty for specific instructions on the care  
and service of your Timex® Digital Heart Rate Monitor.  
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Should you need a replacement strap or band, call 1-800-328-  
2677.  
DECLARATION OF CONFORMITY  
(according to ISO Guide 22 and EN 45014)  
Manufacturer:  
Timex Corporation  
555 Christian Road  
Middlebury, CT 06762  
TIMEX® INTERNATIONAL WARRANTY REPAIR COUPON  
Original Purchase Date:  
(attach a copy of sales receipt, if available)  
declares that the product:  
Purchased By:  
(name, address, telephone number)  
Product Name:  
Model Number:  
Product Options:  
Timex® Digital Heart Rate Monitor  
M640  
All  
Place of Purchase:  
(name and address)  
conforms to the following Product Specifications:  
Reason for Return:  
LVD: 73/23/EEC  
Safety:  
IEC 60950  
EMC: 89/336/EEC  
Emissions:  
EN300-683  
Radiated Emission 30 MHz to 1000 MHz E-  
Field (Electric). Ref.EN55022  
Immunity:  
EN300-683  
Radiated Immunity 80 MHz to 1000 MHz. Ref.  
EN61000-4-3  
THIS IS YOUR REPAIR COUPON. KEEP IT IN A SAFE PLACE.  
ESD Electrostatic discharge. Ref. EN61000-4-2  
Radiated Immunity 900 MHz. Ref. ENV50204  
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Supplemental Information: The product herewith complies with the  
requirements of the Low-Voltage Directive 73/23/EEC and the EMC  
Directive 89/336/EEC and carries the 7 marking accordingly.  
Hereby, Timex Corporation declares that this low power radio equipment is  
in compliance with the essential requirements and other relevant  
provisions of Directive 1999/5/EC.  
Agent:  
Brian J. Hudson  
Director, Test Engineering and Module Development  
Date: 15 July 2004, Middlebury, Connecticut, U.S.A.  
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