SUUNTO T3C User Guide - Manual (Page 11)

● under 30 minutes per week, use 4.
● 30-60 minutes per week, use 5.
● 1-3 hours per week, use 6.
● over 3 hours per week, use 7.
Endurance or professional
If you train on a regular basis or participate in competitive sports, and your weekly
exercise is:
● 5-7 hours, use 7.5.
● 7-9 hours, use 8.
● 9-11 hours, use 8.5.
● 11-13 hours, use 9.
● 13-15 hours, use 9.5.
● over 15 hours, use 10.
NOTE: If you train without your Suunto heart rate monitor, ACT CLASS may decrease,
even though you have trained at the described level. We therefore recommend you train
with your Suunto heart rate monitor to ensure it understands and guides you correctly.
Your Suunto heart rate monitor increases or decreases your activity class according to
your training history. In both cases, you are asked to confirm the change before the
setting is modified.
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