POLAR M21 - Manual (Page 32)

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C H E C K Y O U R H E A R T R A T E L I M I T S
While exercising you don’t have to press any button to
check the heart rate limits you are using. Just bring the
wrist receiver up to your chest near the transmitter’s Polar
logo.
The current exercising zone values and backlight will
be on for a few seconds.
S E E Y O U R P R O G R E S S B U L L E T S
D U R I N G E X E R C I S E
In models M21 and M22 a bullet appears for every 100 kcal
energy expenditure.
In models M51 and M52 a bullet appears for every 10
minutes exercise in Target Zone.
S W A P T H E H E A R T R A T E L I M I T S
In models M51 and M52 you can swap heart rate limits
during the exercise while the stopwatch is running and you
have set OwnZone on. You can select between OwnZone
Basic, OwnZone High, OwnZone Low and manually set
limits.
Press and hold SCROLL UP or
SCROLL DOWN.
If you swap heart rate limits during exercise, the
latest ones in use will be saved as measurement
option settings and your next exercise will start
with these limits.
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