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Water resistant characteristics
Water resistant
Protected against wash splashes, sweat,
raindrops etc. Not suitable for swimming.
Water resistant 30 m/50 m
Suitable for bathing and swimming
Water resistant 100 m
Suitable for swimming and snorkeling (without
air tanks)
*These characteristics also apply to Polar WearLink W.I.N.D. transmitters marked Water resistant 30m.
Frequently Asked Questions
What should I do if...
...the battery symbol and Battery low is displayed?
The low battery indicator is usually the first sign of an expired battery. However, in cold conditions the
low battery indicator may appear. The indicator will disappear as soon as you return to a normal
temperature. When the symbol appears, the training computer sounds and backlight are automatically
deactivated. For further information on changing the battery, see Care and Maintenance.
...I do not know where I am in the menu?
Press and hold STOP until the time of day is displayed.
...there are no reactions to any buttons?
Reset the training computer by pressing all the buttons simultaneously for two seconds until the
display fills with digits. Press any button and set the time and date in Basic Settings after the reset.
All other settings are saved. Skip the rest of the settings by pressing and holding STOP.
...the heart rate reading becomes erratic, extremely high or shows nil (00)?
• Make sure the transmitter belt has not loosened during exercise.
• Make sure the textile electrodes in the sports apparel fit snugly.
• Make sure that the electrodes of the transmitter / sports apparel are moistened.
• Make sure the transmitter / sports apparel is clean.
• Strong electromagnetic signals can cause erratic readings. For further information, see Precautions.
• If the erratic heart rate reading continues despite moving away from the source of disturbance, slow
down your speed and check your pulse manually. If you feel it corresponds to the high reading on
the display, you may be experiencing cardiac arrhythmia. Most cases of arrhythmia are not serious,
but consult your doctor nevertheless.
• A cardiac event may have altered your ECG waveform. In this case, consult your physician.
…Memory full is displayed?
The message appears during exercise if you have recorded 99 laps or if no memory space is left for the
exercise. In that case, stop recording the exercise and transfer the exercise files from your training
computer to the Polar ProTrainer 5. Then delete them from the training computer.
…Check WearLink! is displayed and your training computer cannot find your heart rate signal?
• Make sure the transmitter belt has not loosened during exercise.
• Make sure the textile electrodes in sports apparel fit snugly.
• Make sure that the electrodes of the transmitter / sports apparel are moistened.
• Make sure the transmitter / electrodes in the sports apparel are clean and undamaged.
• If the heart rate measurement does not work with the sports apparel, try using a WearLink strap. If
your heart rate is detected with the strap, the problem is most probably in the apparel. Please
contact the apparel retailer / manufacturer.
• If you have done all of the above-mentioned actions, and the message still appears and heart rate
measurement does not work, the battery of your transmitter may be empty. For further information,
see Care and Maintenance.
…New WearLink found. Teach new WearLink? is displayed?
Polar RS800CX User Manual 56