Polar Electro AXN500 User Manual page 80

The following table contains some recommendations for memory rates in different activities:
Type of Activity
Downhill skiing - shorter period than a day
Mountain biking - shorter, higher intensity ride
Whitewater padding
Navigating using the altimeter
Back-country skiing
Mountain biking - longer ride
Hiking in steep terrain
Long Treks - recording heart rate for a long
period of time
Recording without monitoring heart rate
80 ADJUSTING SETTINGS, REVIEWING FILES AND USING TIMERS (TIME MAIN MODE)
Memory rate
5 s
(Maximum of 11 h free memory)
15 s
(Maximum of 33 h free memory)
60 s
(Maximum of 132 h free memory)
5 min
(Maximum of 660 h free memory)