LifeSpan TR5500iM Owner's Manual page 19

Console Basics
C
K. Pace - The number of minutes it takes to complete a mile or kilometer.
L. Lap - The number of 400 meter laps completed on a track.
M. Lap Time - Current lap time.
N. Splits - These are one lap splits. In this case a split is the time it took to
complete a lap.
O. Heart Rate - Your measured heart rate using the hand pulse sensors located
on the front handlebars, chest strap, or armband.
P. % Max Heart Rate - This is the percentage of your suggested max HR
(220 - age).
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K
G
O
B
D
L
N
Screen Option 3