• When taking up exercise after more than a week’sbreak.
• If you are not completely sure of your physical or mental state – for example, if you are not
recovered from previous training, not feeling well, or are stressed.
• After changing user settings.
Before you start determining your OwnZone, make sure that:
• Youruser settings are correct.
• The OwnZone function is activated. The cycling computer will automatically determine OwnZone
every time you start exercising if the OwnZone function is on.
1. Wear the transmitter as instructed. Start measurement by pressing OK twice.
2. When your exercise starts, OZ is displayed and OwnZone determination begins.
Determination of your OwnZone occurs in five stages. If the sound setting is activated, a beep will
indicate the end of each stage.
OZ> Cycle at a slow pace for 1 min. Keep your heart rate below 100 bpm/ 50% HRmax during this first
stage.
OZ>> Cycle at a normal pace for 1 min. Slowly increase your heart rate by 10 bpm/ 5% HRmax.
OZ>>> Cycle at a brisk pace for 1 min. Increase your heart rate by 10 bpm/ 5% HRmax.
OZ>>>> Cycle at a brisk pace for 1 min. Increase your heart rate by 10bpm/ 5% HRmax.
OZ>>>>> Cycle brisk pace for 1 min. Increase your heart rate by approximately 10 bpm/ 5 % HRmax.
3. Once you hear two consecutive beeps this means your OwnZone has been determined.
4. OwnZoneUpdated and the heart rate zone are then displayed. The zone is displayed in beats per
minute (bpm) or as a percentage of maximum heart rate (HR%) or as a percentage of your heart
rate reserve (HRR%), depending on your settings.
5. If OwnZone determination was not successful, your previously determined OwnZone will be used
and OwnZoneLimits is displayed. If OwnZone has not previously been recorded, age-based limits are
automatically applied.
Youcan now continue with your exercise. Try to keep inside the given heart rate zone to maximize
exercise benefits.
Alternatively,to skip OwnZone determination and use the previously determined OwnZone, press OK at
any phase of the process.
The elapsed time used for OwnZone determination is included in your recorded exercise time.

Stop Exercise

Interrupt exercise recording by pressing STOP. Tostop recording completely, select EXIT.
6. AFTER TRAINING
Care for your transmitter after exercise. Detach the connector from the strap after use. Keep the
transmitter dry and clean.
For complete care and maintenance instructions, see Care and Maintenance.

Analyze Exercise Results

Toview basic data on your performance, see File on your cycling computer.For more comprehensive
analysis, transfer the data to Polar ProTrainer5 software. The software offers you different additional
analysis options to analyze data with.
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