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4. Have you had a cardiac event which may have altered your ECG
waveform? In this case consult your physician.
...heart symbol flashes irregularly?
1. Check that your Polar wrist unit is inside the transmission range
and not further that 3 feet/1 meter from the Polar Transmitter
you are wearing.
2. Check that the elastic strap has not become loose during
exercise.
3. Make sure that the electrodes of the transmitter are moistened.
4. Make sure that there is no other heart rate transmitter within the
reception range (3 feet/1 meter).
5. Cardiac arrythmia may cause irregular readings. In this case
consult your physician.
...other person with heart rate monitor is causing interference?
Your training partner may have coincidentally activated exactly the
same code as you. In this case keep distance to your training
partner or proceed as follows:
1. Stop the stopwatch and heart rate measurement.
2. Take the transmitter off your chest for 10 seconds.
3. Put the transmitter back and start the heart rate measurement
again.
...heart rate reading becomes erratic or extremely high?
You may have come within range of strong electromagnetic signals
which cause erratic readings on the wrist unit display. Check your
surroundings and move further away from the source of
disturbance.
...there are no reactions to any buttons?
Reset the Polar Heart Rate Monitor. Resetting clears watch settings
which will return to the default settings. User information and
measurement options settings will be saved.
1. Press the RESET button with a pen tip.
Display becomes full of digits.
2. Press any of the four button once.
The Polar Heart Rate Monitor enters the Time of day display.
If you don't press any button after reset within one minute the wrist
unit goes to the battery saving mode.
...the display is blank or fading?
The Polar Heart Rate Monitor is in battery saving mode when it
leaves the factory. Wake up by pressing START/STOP/OK button
twice. The Polar Heart Rate Monitor enters the Time of day display.
Usually the first sign of a discharged battery is fading of the digits
when using the backlight. Have the batteries checked.
...the battery of the wrist unit must be replaced?
We recommend having all service done by an authorized Polar
Service Center. This is especially necessary to ensure the warranty
remains valid and is not affected by incorrect repair procedures
done by an unauthorized agent. Polar Service will test your wrist
unit for water resistance after battery replacement and make a full
periodic check of the complete Polar Heart Rate Monitor.