POLAR F55 - Manual (Page 52)

4 ENGLISH
. At some point during the five stages, you hear two beeps. Your OwnZone has been determined.
If the OwnZone determination succeeds, the following information is displayed:
OwnZone Updated
OwnZone heart rate limits as beats per minute (bpm) or as a percentage of
your maximum heart rate (%HR
max
) depending on your settings
Your current heart rate
If the OwnZone determination did not succeed, OwnZone Limits and your previously determined
OwnZone limits (bpm/%HR
max
), are displayed. If you have not determined your OwnZone before,
your age-base limits are used.
You can now continue with your exercise. Try to stay within the given heart rate zone to maximize
the benefits of the exercise session.