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1
Information is Power
By measuring intensity (heart rate) and
duration (time) you can avoid over training,
help prevent injury, and maximize your chances
of achieving your goals.
Heart Rate Transmitter
Your Heart Rate Transmitter reads
the electrical impulses of your heart
and transmits data to your watch.
It is one of the most accurate ways
to measure heart rate. The Transmitter
will function automatically if it is worn
correctly within a meter of the watch.
The Transmitter is ergonomically
designed to fit comfortably during
all types of exercise.
ATTENTION: Anyone beginning an exercise regimen
for the first time (especially users of pacemakers
or other implanted devices) should consult their
physician or health professional before using
the heart rate monitor.
triax c8 features
• 50 lap chronograph
• Adjustable target heart rate zone
• 2 segment interval trainer
• Data: timing information, average heart
rate, time in zone for each lap /run
• Time /Day /Date/Alarm
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Contents
Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
TIME mode
Set Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Set Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RUN mode
Using the Chronograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setting Heart Rate Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Customizing Primary Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Setting “My View” Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
INTERVAL mode
Setting Training Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DATA mode
Review Saved Runs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Heart Rate Intensity Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CE Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
This document with updates is available online at
www.nike.com /manuals
Printed on Wood Free Paper
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3
Attach other side of HR Transmitter
around chest. Position on rib cage just
below the breast plate. Should be worn
directly against skin and snug enough
to not slip down while running.
1
Push tab up through slot
in HR Transmitter.
Press down tab until flush.
2
Generously wet both
grooved areas on the back
of HR Transmitter to ensure
a good pick up between your
pulse and the Transmitter.
4
Quick Start Follow steps through to position the Heart Rate Transmitter and go for a run.
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Start Run
RUN mode views
Chronograph
View
Heart Rate
View
or
No Heart Rate Displayed
If you see three blinking lines
in the display, the watch is not
receiving transmission from
the Heart Rate Transmitter.
Run through the Quick Start again
or see page 15 Troubleshooting.
Scroll to
RUN mode
My View
See page 11 for setup
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Set Time
In TIME mode you can set the time, date and power save option. TIME mode is the only mode in which you can turn
the button chime ON and OFF. Follow steps through to set the time and date.
Power Save (0-24hrs.)
After X hours with no activity,
watch goes to sleep.
Push any button to wake.
Alarm will still function.
Press button to select
adjustable element.
Scroll to
TIME mode
4
4 SEC
EXIT
Electrolight
ON/OFF
Set hour Set minutes Set seconds Set day Set month Set year Choose 12 or
24 hour clock
Turn Chime ON/OFF
Chime sounds at the
press of any button.
Switch Time Zones
Hold 1 sec to view.
Hold 4 sec to switch.
4 SEC
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Within TIME mode you can set two alarms. Follow steps through to set the alarms.
Turn Alarm ON/OFF
The alarm icon will
show in the display of any
mode when the alarm is
turned ON.
Scroll to
TIME mode
4 SEC
Set hour Set minutes
Alarm 1 View Time View
Press button to select
adjustable element.
(Alarm On)
EXIT
Alarm 2 View
Set Alarm
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In Chronograph View, you can mark lap times and total times
during your run. Both lap times and total times are captured
simultaneously when you press the lap button. Average heart
rate is also captured for each lap/total period. After you stop
the chronograph, you can save your run information and
review it in DATA mode. See page 13 for DATA mode.
Follow steps through to use your chronograph.
Using the Chronograph
Scroll to
RUN mode
My View
See page 11
for setup
Scroll to
Chronograph
View
Heart Rate
View
Press button to switch
views at any time
during your run.
LAP 1
TOTAL 1
Mark Laps
Lap time is the time required
to go once around a track or
complete a segment of a run.
and
Mark Totals
Total time is the time from
the beginning of the run up
to the point you mark.
Start Run
A blinking
stopwatch
will appear.
4
Mark Lap/ Total
You will have
7 seconds to
read your lap
and total time.
Heart rate is also
captured for each
lap/total period
and can be
viewed in DATA
mode if the run
is saved.
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LAP 4
TOTAL 4
LAP 3
TOTAL 3
LAP 2
TOTAL 2
Stop Run
Stopwatch
will disappear.
4
Mark
Lap/ Total
4
Mark
Lap/ Total
...Save or Clear
Run Information
Clear Run
Run information
is erased.
Save Run
Run information
is saved to
DATA mode.
See page 13
for DATA mode.
3 SEC
3 SEC
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Your heart rate is measured in beats per minute (bpm). Setting a heart rate zone allows you to work within an upper and
lower heart rate limit. Follow steps through to set a target heart rate zone.
Press button to select
adjustable element.
Scroll to
RUN mode
4
4 SEC
EXIT
Turn heart
rate zone ON
Set upper
heart rate
limit
Set lower
heart rate
limit
Turn audible
zone alarm
ON/OFF
Zone Alarm ON Indicator
If zone alarm is ON the watch
will beep as your heart rate
moves out of your zone.
Out-of-Zone Indicators
If your heart rate is out
of your zone the LO ( )
or HI ( ) arrow indicators
will flash in the display.
Above your
heart rate zone.
Below your
heart rate zone.
or
Setting Heart Rate Zone
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You can choose to view TOTAL time or LAP time in the primary display of your chronograph.
Follow steps through to switch your views.
Customizing Primary Display
Scroll to
RUN mode
4
4 SEC
EXIT
Scroll to
TOTAL / LAP
Examples
TOTAL time
in primary display.
LAP time
in primary display.
or
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“My View” allows you to create your own view in RUN mode with the information you use the most during your workout.
When activated My View will appear as the first view in RUN mode. This feature allows you to choose which information
appears in the Primary (larger) and the Secondary (smaller) displays. Follow steps through to create your view.
Setting “My View” Display
Press button to scroll to MY VIEW
and select display choice.
Scroll to
RUN mode
4
4 SEC
EXIT
Turn MY VIEW ON
PRIMARY display choices
SECONDARY display choices
NOTE: Primary and Secondary display
choices cannot be the same.
NO display
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Press button to select
adjustable element.
Scroll to
INTERVAL mode
4
4 SEC
EXIT
Segment 1
Set seconds
Segment 1
Set minutes
Segment 1
Set hours
Switch to
segment 2
Cycle Segments
Press button to select
beginning segment.
Timer must be reset.
See Reset Countdown.
Start
Countdown
Stop
Countdown
Reset
Countdown
2 SEC
View Heart Rate
Press button to view
current heart rate in
secondary display
during any segment.
INTERVAL mode features a 2 segment countdown timer. You can use this as an interval training tool by exercising at
a higher intensity for a certain period of time, followed by a recovery interval at a lower intensity level. You can set 2 timed
segments for your workout. As each segment is completed, the next begins. All segments will continue to repeat
until the timer is stopped. Follow steps through to set your training intervals.
Setting Training Intervals
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In DATA mode you can review detailed information about your saved runs. The memory can store multiple runs with
up to 50 laps each. See page 8 for saving runs to DATA mode. Follow steps through to view data saved for each run.
Review Saved Runs
Scroll to
DATA mode
4
Press button to view
stats in each category.
Select a Run
Date of run
appears in
primary display.
HR Zones
will not appear if
they are turned
OFF during
recording.
NOTE: If RUN 2 is deleted,
RUN 3 becomes RUN 2.
Tot al Ti me
Averages
Average HR
Average Lap
HR Zone
In Zone
Above Zone
Below Zone
Best Lap Lap 1
Lap 1 Time
Total Time
Average HR
Lap 2 Lap 3 up to 50
Total Time (Lap 1 + Lap 2)
Average HR
Lap 2 Time
Clear ALL Runs
3 SEC
Clear This Run
3 SEC
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Heart Rate Intensity Chart
This is another way to gauge your approximate heart rate zones based on sex, age and weight. Starting with your
Max Heart Rate, use the chart to help calculate your zones depending on the intensity of your workout.
Note this formula may not work for everyone.
Determine your Target Heart Rate Zones (Intensities)
Max Heart Rate
205 bpm
200
195
190
185
180
175
170
165
160
155
150
123 - 143 bpm
120 - 139
117 - 136
114 - 132
111 - 129
108 - 125
105 - 122
102 - 118
99 - 115
96 - 111
93 - 108
90 - 104
144 - 163 bpm
140 - 159
137 - 155
133 - 151
130 - 147
126 - 143
123 - 139
119 - 135
116 - 131
112 - 127
109 - 123
105 - 119
164 - 184 bpm
160 - 179
156 - 175
152 - 170
148 - 166
144 - 161
140 - 157
136 - 152
132 - 148
128 - 143
124 - 139
120 - 134
184 - 205 bpm
180 - 200
176 - 195
171 - 190
167 - 185
162 - 180
158 - 175
153 - 170
149 - 165
144 - 160
125 - 155
121 - 150
Light Intensity
(60-70% of Max HR)
Exercise in this range at the
start of a workout or to recover
from a tough workout or race.
You should be able to easily
maintain a conversation while
exercising at this intensity.
Find your
Max Heart Rate
Moderate Intensity
(70-80% of Max HR)
Exercise in this range to develop
endurance and prepare your
muscles to make the transition
from aerobic to anaerobic.
You should be able to maintain
this for a while. You should not
be completely breathless and
this should not hurt.
Heavy Intensity
(80-90% of Max HR)
Exercise in this range
to increase muscle strength
and improve your anaerobic
threshold. This is uncomfortable.
You should be breathing very
heavily. You should only be able
to sustain this for a brief time.
Maximum Intensity
(90-100% of Max HR)
Exercise in this range to increase
mental toughness, Max V02 and
tolerance to lactic acid. This is
very uncomfortable. You can
barely sustain it. You should be
completely breathless. Do not
exercise at this intensity except
on the advice of a trained
medical professional.
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Troubleshooting
No heart rate displayed on watch:
The grooved sensors may not be wet enough.
Wet and try again. It is recommended that you wear
the Heart Rate Transmitter directly against your skin.
If you are wearing the HR Transmitter over clothing,
try getting the clothing wet also.
The HR Transmitter may not be positioned correctly.
Make sure the grooved sensors are flat against the skin.
Heart rate reading on watch is erratic or stops:
You may need to replace the battery in the HR Transmitter.
Sources of electromagnetic fields like appliances,
computers and power lines can cause interference.
Change your location.
This product complies with EN60601-1-2
Watch display is frozen:
The display of your watch may "freeze" due to static
electricity or recent battery replacement. If this occurs,
press and hold all four buttons at the same time.
This will erase the data in the memory and allow you
to reset the watch to the factory settings.
Watch beeps continuously:
If you have the zone alarm on and your heart rate does not
fall within any of your zones, the watch will beep to indicate
you are out of your zones. See page 9 for instructions on how
to turn off the zone alarm.
Specifications
IP code: IPX8
Applied Part: Type CF
Storage: Standard Conditions (within operating temperature)
Watch
Water Resistant up to 50 Meters:
Designed for underwater performance
to a depth of 165 feet (50 m).
ATTENTION: Water damage
will occur if watch buttons
are pressed while underwater!
Operating Temperature: -5 to 50˚ Celsius
Material Specifications:
Crystal: Mineral Glass
Case: Polycarbonate
Buckle: Stainless Steel
Bezel: Stainless Steel
Caseback: Stainless Steel
Strap: Polyurethane
Mode Limits:
Chronograph: 23:59’59”
Heart Rate: 30 - 240 bpm
Timer: 23:59’59”
Heart Rate Transmitter
Water Resistant up to 30 Meters:
Wipe dry after use. Do not store among conductive material.
Operating Temperature: -5 to 50˚ Celsius
Accuracy:
+
-
1% or
+
-
1% bpm, whichever larger (steady state)
Material Specifications:
Case: Polycarbonate
Strap: Urethane
Band: Elastic
Press and hold all four buttons
at the same time to reset
the watch to the factory settings.
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Battery
WARNING! Keep watch batteries away from children. If swallowed, contact a doctor immediately.
WARNING! Batteries contain chemical substances. They should be disposed of properly according to local regulations.
Watch
Battery Type: CR2032 3V Lithium
Battery Life:
The battery is estimated to last 1.5 years depending on frequency and use
of certain features. Activating the Electrolite feature will contribute to battery drain.
Utilizing the Power Save function will help conserve battery life.
Battery Replacement:
Follow steps below to replace your watch battery. For best results, you can have
Nike’s authorized service center change the watch battery.
Heart Rate Transmitter
Battery Type: CR2032 3V Lithium
Battery Life:
The battery is estimated to last 1 year if HR Transmitter is used one hour per day.
Open the battery
lid on the watch
with a coin by
turning counterclockwise.
Replace the
battery holder
cover and
battery lid.
Insert a CR2032,
3V lithium
battery with the
writing facing
you. Do not
touch the 2
contacts.
Twist and
remove battery
holder cover.
Remove old
battery.
Open the battery lid on
the HR Transmitter
with a coin by turning
counter-clockwise.
Insert a CR2032, 3V
lithium battery with
the writing facing you.
Do not touch the 2
contacts.
Replace the battery lid.
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Two-Year Limited Warranty
Your NIKE watch is warranted to be free of defects in materials or workmanship,
under normal use, for a period of two years from the date of delivery. This limited
warranty excludes the battery, crystal, strap, or damage resulting from improper
care or handling, accidents, modification, unauthorized repairs or normal wear.
Return the defective watch and the store receipt to the place of purchase.
If there is a covered defect, you have the option to have the defective parts or
watch repaired or replaced with the same product (if available) or a similar
product of equal price. However, NIKE reserves the right to refuse either repair
or replacement (but not both) if the cost of doing so would be disproportionate
to the defect.
This limited warranty is in place of all other express warranties, and excludes
refund of the purchase price. Any implied warranties, including merchantability
and fitness for a particular purpose, are limited to the duration of this limited
warranty. In no event shall NIKE be liable for direct, indirect, incidental or
consequential damages arising out of the use of the watch, and any recovery is
limited to the purchase price. No other person or company is authorized to
change this limited warranty, and your dealer is solely responsible for any
other warranties.
For U.S. Purchasers: Some states do not allow limitations on how long an implie
warranty lasts, or exclusions of incidental or consequential damages, so the above
limitations may not apply to you. This warranty gives you specific legal rights, and
you may also have other rights which vary from state to state.
The foregoing is without prejudice to other legal rights that may arise
under applicable national legislation.
For non-warranty service like battery or strap replacement,
contact one of the listed service centers.
CE Compliance
This product complies with the Medical Device Directive (Directive 93/42/EEC).
0197
Service Centers
USA: 800-359-2508
Parsec Enterprises, Inc.
7501 N. Harker Dr.
Peoria, IL 61650
Denmark: +45 45932233
France: +33 1 42 72 03 33
UK: +44 1628 770988
Germany: +49 2154 943 471
Netherlands: +31 104009899
Belgium: +00 32 2 468 32 05
Italy: +39 2 72000980
Norway: +47 67 51 20 87
Sweden: +47 67 51 20 87
Austria: +43 13313937
Finland: +358 9 4780 500
Switzerland: +41 32 321 7272
Spain: +34 93 419 5888
Greece: +30 32 12293
Slovenia: +386 4 202 70 16
Croatia: +385 1 4816 137
Hungary: +36 1 267 4797
Israel: +972-3-5172540
Turkey: +90 (212) 513 62 90
CIS: 7 095 232 0115
UAE: +971 43 59 99 05
Saudie Arabia: +966 1 2930 920
Lebanon: +961 1 746540
Egypt: +20 (0) 22673811
Japan: 0120-500-719
Korea: 080-022-0182
Singapore: 65-788 0990
Malaysia: 603-7722 2459
Thailand: 662-676 6100
Philippines: 632-848 9851
Australia: 1300 656 453
Taiwan: 0800-009-868
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