Stairmaster STRATUS 3300 CE, Owner'S Manual

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The StairMaster ® Stratus Systems cycle ergometer features an optional digitized
contact heart rate monitoring system. Through the use of stainless steel sensors
built into the upper handles and sophisticated software, heart rate can be
checked at any time during a workout.
The heart generates a rhythmic, electronic signal each time it beats (the
electrocardiogram or EKG signal). The sensors detect this electrical signal
through the hands when the sensors are gripped during a workout. The signal is
converted into a heart rate, which is displayed on the console.
The contact heart rate system is very accurate (within 3% of the
medical standard), but its ability to detect a heart rate signal is influenced by
several factors. Movement of the muscles of the upper body produces an
electrical signal that will interfere with the detection of the heart rate signal by
the sensors. Movement of the hands while they are in contact with the sensors
also produces interference. Calluses and hand lotion act as an insulating layer to
reduce the signal strength. Also, the EKG signal generated by some individuals is
not strong enough to be detected by the sensors. Typically, these individuals
account for 5 - 7% of the population. Most people (between 93 – 95%) will not
have a problem with the system provided interference from movement is
minimal.
Lightly grip the sensors with each hand. The heart rate display is
shown automatically in the upper window the first time the sensors are touched.
A valid signal is shown by a pulsating heart icon and the number of beats per
minute next to the word “Pulse”. The heart icon will stop beating and two dashes
replace the numbers when the sensors are released or an invalid signal is
received.
CONTACT HEART RATE