Switching the Backlight On
Press the Light button and the display is illuminated for a few seconds.
After you have illuminated the display once while exercising night mode symbol 
appears in the display. The display automatically illuminates each time you press any button or bring the wrist unit near the Polar logo on the transmitter, until you stop recording the exercise.
Switching Keylock 
On or Off
Press and hold the Light button to lock and unlock all the buttons, except the Light button. BUTTONS LOCKED or BUTTONS UNLOCKED is displayed.
Pausing the Exercise
You can pause your exercise recording while taking a break to drink water or some other activity.
1.Press the Back button. Your current heart rate is displayed. The recording of the exercise is paused. 
instead of 
is displayed.
2.Select CONTINUE by pressing the 
/ 
buttons. Press OK to continue recording your exercise.
Changing Settings During Exercise
You can change the settings while recording your exercise or you can pause the exercise recording while modifying your settings.
1.If you want to change the settings without pausing the exercise recording, press and hold OK. Alternatively, if you want to pause the exercise recording, press the Back button and select SETTINGS with the 
/ 
buttons. Press OK.
2.HR ALARM, HR LIMITS, and HR VIEW are displayed. Press the 
/ 
buttons to select Alarm, Limits, or View. Press OK.
HR alarm: Select VOL 2 (loud), VOL 1 (quiet), or alarm OFF with the 
/ 
buttons. Press OK.
HR limits: If you are using OwnZone or Automatic HR limits, select HARD, MODERATE, LIGHT, or BASIC with the 
/ 
buttons. Press OK. Your limits are displayed for a few seconds.
Alternatively, if you are using Manual limits, your target heart rate limits are displayed for a few seconds.
HR view: Select HR (beats per minute) or HR% (percentage of your maximum heart rate) with the 
/ 
buttons. Press OK. When you have modified the settings, the wrist unit returns to either Exercise mode or Exercise pause mode.
For further information, see the section Heart Rate Settings on page 40.
Note: The wrist unit shows the exercise or exercise pause mode if you do not press any of the buttons within one minute.
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