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• 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.
• Make sure that there is no other heart rate transmitter within 40 m/131 ft.
• 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.
…Check WearLink! is displayed and your cycling computer cannot find your heart rate signal?
• Make sure the cycling computer is no further than 40 m/131 ft from the transmitter.
• 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?
If you have purchased a new transmitter as an accessory, it will have to be introduced to the cycling
computer. For further information, see 10. Using a New Transmitter.
If the transmitter you are using is included in the product set, and the text appears on the display, the
cycling computer may be detecting the signal of another transmitter. In that case, make sure you are
wearing your own transmitter, that the electrodes are moistened, and that the transmitter belt has not
loosened. If the message still appears, the battery of your transmitter is empty. For further information,
see Care and Maintenance.
...Check Speed! is displayed?
For further information, consult Speed Sensor W.I.N.D. user manual.
…Check Power! is displayed?*
Check that the power sensor function is activated in the cycling computer. If so, the cyclist symbol
should be displayed on the computer. Make sure your power sensor is positioned correctly. The battery
of your power sensor may be empty. For further information, see Power Output user manual.
...Teach new sensor? is displayed?
If you have purchased a new Polar WearLink W.I.N.D., Polar Cadence Sensor W.I.N.D.* or Polar Power
Sensor W.I.N.D.* as an accessory, it will have to be introduced to the cycling computer. For further
information, see 11. Using a New Accessory.
...the altitude keeps changing even if I am not moving?
The cycling computer converts measured air pressure into an altitude reading. This is why changes in
the weather may cause changes in altitude readings.
…the altitude readings are inaccurate?
Your altimeter may show faulty altitude if it is exposed to external interference like strong wind or air
conditioning. In this case, try to calibrate the altimeter. If the readings are constantly inaccurate, dirt
may be blocking the air pressure channels. In this case, send the cycling computer to a Polar Service
Center.
...Memory low is displayed?
Memory low is displayed when there is approximately one hour of memory space left. Once the memory
has been depleted Memory full is displayed. To free memory space, transfer exercise data to Polar
Polar CS600X User Manual 56