POLAR S725 - Manual (Page 80)

D 78
Resetting your cumulative counts to zero
Once your have reset the cumulative count you cannot retrieve it.
Start with the display showing Tot. KCal, Tot. Time, Rid. Time or Odometer
in the records file.
1. Press OK to start resetting the desired total count. Reset appears and the
value starts to flash.
2. Press and hold the down button. Reset starts to flash. You can still cancel
the resetting by releasing the down button before the value is reset. If
you are sure that you want to reset the value keep holding the down
button until value is reset. Release.
3. Press the stop button to exit the reset display.
Press and hold the stop button to return to the Time of day display.