Polar M21, M22, M51, M52 user manual N Z O N E M E T H O D S

Models: M51 M52 M21 M22

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Heart rate limits for your previously determined OwnZone appear on the display.

2.Stop the stopwatch by pressing START/STOP/OK. QUIT? appears in the display.

3.

To reset the stopwatch press and hold SCROLL DOWN

 

for 2 seconds.

4.

To restart the stopwatch press START/STOP/OK.

O W N Z O N E M E T H O D S

Polar Heart Rate Monitor uses multiple methods for determining your OwnZone. The OwnZone determination is based on measuring and analyzing the heart rate variability during graded exercise.

If your heart rate exceeds the safety limit during the determination, Polar Heart Rate Monitor picks up your latest OwnZone definition based on heart rate variability. Alternatively, if there is no previous determination in memory, OwnZone limits, which are based on your age predicted maximum heart rate, will be used. These methods ensure that the safest possible exercise zone is determined for you.

The method used in defining the OwnZone is indicated after the two beeps as follows:

1.OZ.V (OwnZone Variability) and the currently determined OwnZone limits appear on the illuminated display.

2.OZ.L (OwnZone Latest) and your previously determined OwnZone limits appear on the illuminated display.

3.OZ.A (OwnZone Age) and your age-predicted heart rate limits appear on the illuminated display.

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Polar M21, M22, M51, M52 user manual N Z O N E M E T H O D S