Vision Fitness U70 - Manual (Page 13)

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SELF-POWERED FEATURE
The U70 is a self-powered unit, requiring no external power source.
When a user pedals at a speed above 20 revolutions per minute (RPM),
the power is generated to allow the Bike to function properly. Because
of this self-generating feature, the console feedback will fade away when
you cease pedaling. The console does, however, use a 9-volt battery as
backup to save your feedback information for 30 seconds from the time
you stopped pedaling. If you resume pedaling within the 30 seconds, the
information will reappear. If the information does not appear within the
30 seconds, your battery may need to be plugged in or replaced.
CONTACT HEART RATE
HAND PULSE HEART RATE SENSORS
The Contact Hand Pulse Sensors are included on each product to monitor
your heart rate. To use, grasp both of the sensors with a comfortable grip
during your workout. The console will display your heart rate. Although
your signal will be displayed immediately, it may take the system a few
seconds to zero in on your actual heart rate.
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