If there is no or irregular running speed readings on the display, check the following:

Keep distance to other runners with foot pods.

If you keep the wrist unit in front of you for longer than 15 seconds the speed and distance measurements stop. You need to reactivate the measurements by moving your hand.

Turning the zone alarm on/off

Note that you can not use the alarm when Bicycle functions are on. Note that trip distance is reset by pressing and holding signal/light button. Therefore Trip should not be displayed in the upper row when turning zone alarm on/off.

Press and hold the signal/light button.

When appears on the display the zone alarm is on. You will hear a beeping sound if you are outside the limit.

If you do not want to use the zone alarm the flashing heart rate/pace reading indicates if you are outside the limit. This function can be used if you have set limits on for Interval Training Set or BasicSet.

In addition to the alarm you can see:

if you are exercising above heart rate/pace zone. if you are exercising below heart rate/pace zone.

Swapping the heart rate/pace limits

Press and hold the up button. Repeat until the desired limits are displayed. In the Interval Training mode the limits are automatically swapped when the phase changes to the preset limits.

You have three optional Recording modes depending on the selected exercise:

BasicUse

Interval Training Set (Int On)

BasicSet (Int OFF)

The following functions can be used during all three optional Recording modes.

Illuminating the display (Night Mode)

Press the signal/light button in the Measuring or Recording mode. After you have illuminated the display once, the display automatically illuminates:

at the end of an interval or recovery calculation

if you start or stop the exercise session

if you store lap information

if you bring the wrist unit near the Polar transmitter (Heart touch)

This function is automatically turned off when you return to the Time of the day display. If you want to illuminate the display in the Time of the day mode, press the signal/light button.

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Image 31
Polar S725X Turning the zone alarm on/off, Swapping the heart rate/pace limits, Illuminating the display Night Mode