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Keep your running computer, transmitter and foot pod in a cool and dry place. Do not keep them in a
damp environment, in non-breathable material (a plastic bag or a sports bag) nor with conductive
material (a wet towel). Do not immerse the foot pod in water. Do not expose to direct sunlight for
extended periods.
Operating temperatures are -10 °C to +50 °C / +14 °F to +122 °F.
Service
During the two-year guarantee/warranty period, we recommend that you service the product at an
authorized Polar Service Center only. The warranty does not cover damage or consequential damage
caused by service not authorized by Polar Electro. For further information, see Limited International
Polar Guarantee.
Changing Batteries
To change the batteries of the running computer, transmitter and foot pod* yourself, carefully follow
the instructions in Install Foot Pod Battery in Getting Started Guide. All batteries are changed the
same way. For further information on changing the foot pod* battery, see Install Foot Pod Battery.
If you would prefer Polar to replace the battery, contact an authorized Polar Service Center. The
Service will test the sensor after replacing the battery.
Excessive use of the backlight drains the running computer’s battery more rapidly. In cold conditions,
the low battery indicator may appear, and disappear again when you return to a warmer environment.
To ensure the maximum lifespan of the battery cover, open it only when changing battery. When
changing the battery, make sure the sealing ring is not damaged, in which case you should replace it
with a new one. Battery kits with sealing rings are available at well-equipped Polar retailers and
authorized Polar Service Centers. In the USA and Canada, sealing rings are available at authorized
Polar Service Centers only.
Keep batteries away from children. If swallowed, contact a doctor immediately. Batteries should be
properly disposed of according to local regulations.
*Optional S1 foot pod required.
Precautions
Interference During Exercise
Electromagnetic Interference and Exercise Equipment
Disturbance may occur near high-voltage power lines, traffic lights, overhead lines of electric railways,
electric bus lines or trams, televisions, car motors, bike computers, some motor-driven exercise
equipment, cellular phones, or when you walk through electric security gates. To avoid erratic
readings, move away from possible sources of disturbance.
Exercise equipment with electronic or electrical components such as LED displays, motors and
electrical brakes may cause interfering stray signals. To solve these problems, try the following:
1. Remove the transmitter from your chest and use the exercise equipment as you would normally.
2. Move the running computer around until you find an area in which it displays no stray reading or
does not flash the heart symbol. Interference is often worst directly in front of the display panel of
the equipment, while the left or right side of the display is relatively free of disturbance.
3. Put the transmitter back on your chest and keep the running computer in this interference-free
area as much as possible.
If the running computer still does not work with the exercise equipment, it may be electrically too
noisy for wireless heart rate measurement.
Crosstalk
A heart rate symbol without a frame indicates non-coded heart rate transmission. When in non-coded
mode, the running computer picks up transmitter signals within 1 m / 3ft. Simultaneous non-coded
signals from more than one transmitter can cause an incorrect reading.
If another person with a running computer or a heart rate monitor is causing interference, move away
from that person and continue your exercise normally.
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