Suunto ADVIZOR Manuel D'instructions page 23

During the first minute, measurements are taken every second, then for the next 4 minutes every 5 seconds. If
no heart rate signal has been received during the first five minutes, the “search for” a heart rate signal will end.
After this process, the user can manually activate the heart rate measurement by pressing the [+] button in the
HRM main mode.
NOTE: Pressing the [+] button during the first 5 minutes in the heart rate mode, will stop the search for a heart
rate signal. To reactivate the measurement, press the [+] button again.
2.6 OPERATION
The Heart Rate Monitor function provides the user with:
• a heart rate range from 20 - 240 beats/min;
• a stopwatch range of up to 23:59.59, stores up to 30 split times and heart rate readings;
• an interval countdown timer range of up to 23:59.59;
• upper and lower limits adjustable in one beat increments to set target heart rate zone;
• audible alarms alert the user of exceeding upper or lower limit;
• heart rate displayed in relation to current time or running time (stopwatch and countdown timer);
• auto-repeat of countdown timer for interval training (training interval, recovery interval, number of intervals);
and
• HRM memory activated from the starting of the stopwatch or the countdown timer storing total training time,
maximum, minimum and average heart rate during training, as well as time spent in, above and below target
heart rate zone. When stopwatch is used, the memory also stores up to 30 split times and heart rates for
viewing.
To view and use the Heart Rate Monitor function:
Check the LCD. If the segment under “HRM” is not highlighted, PRESS the [Mode] button until the segment
directly under “HRM” is lit.
In the HRM mode (Fig. 2):
• Field 1 displays the text “HR” (HR = heart rate).