Forerunner 310XT Owner’s Manual
Settings
Data
Field
Description
Dist–
Nautical
Distance in nautical
miles.
Elevation
*
Distance above/below
sea level.
GPS
Accuracy
*
Margin of error for
your exact location.
For example, your
GPS location is
accurate to within
+/- 19 ft.
Grade
Calculation of
rise over run. For
example, if for every
10 ft. you climb
(elevation) you travel
200 ft. (distance),
your grade is 5%.
HR **
Heart rate in bpm.
HR–
%Max **
Percentage of
maximum heart rate.
Data
Field
Description
HR–
%HRR **
Percentage of
heart rate reserve
(maximum heart rate
minus resting heart
rate).
HR–Avg
**
Average heart rate for
the run.
HR–Avg
%Max **
Average percentage
of maximum heart
rate for the run.
HR–Avg
%HRR **
Average percentage
of heart rate reserve
(maximum heart rate
minus resting heart
rate) for the run.
HR–Lap
**
Average heart rate for
the lap.
HR–Lap
%Max **
Average percentage
of maximum heart
rate for the lap.