SportsArt Fitness C521R, Owner'S Manual

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4.The vibration of treadmills at speeds over 4mph/6.4kph makes heart rate detection
difficult. Also, if your hands move, heart rate detection becomes difficult.
For better heart rate detection, keep hands in one place on the contact plates.
Or wear a telemetry heart rate strap on your chest.
In cold, dry areas, static electricity can interfere with unit operation. In such
environments, touching metal may cause static electrical shocks.
Suggestions:
Before touching metal, touch a material with electrically isolative properties, for
instance, plastic or foam, to avoid shocks from static electricity.
Because heart rate contact plates are made of metal, to avoid static shock, first touch
foam grips, then touch heart rate contact plates.
Suggestions:
Note: Avoid Static Electricity
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