User's Manual

17
OPERATING HEART RATE/CHRONOGRAPH MODE
The Sportline Duo 1010 Heart Rate Watch is equipped with a 10-hour, 25-lap Chronograph. This is the
primary Heart Rate mode which tracks and displays all heart rate information. Chronograph time is
displayed in the upper display line. Heart Rate information is displayed in the lower display line. The
following table shows the watch’s display icons and their meaning:
OPERATING THE WATCH
symbol what it means
Heart Rate is below selected
Target Zone
Heart Rate is above selected
Target Zone
Heart Rate is in selected Target Zone
Maximum Heart Rate for workout
Average Heart Rate for workout
symbol what it means
Heart Rate is being detected
Heart Rate as a percentage of
calculated Maximum Heart Rate
Hourly Chime is activated
Daily Alarm is activated
Low Battery warning