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NAUTILUS
®
HEART RATE MONITORING
7
Maintaining the Transmitter Belt
Clean the chest belt regularly with mild soap and water, then dry thoroughly —
residual sweat and moisture keeps the transmitter active and will drain the battery
in the transmitter. Do not use abrasives or chemicals such as steel wool or alcohol
for cleaning, as they can damage the electrodes permanently. The supplied chest
belts use a sealed battery and are non-replaceable. Batteries in a chest belt will last
on average for 1500-2000 hours of use. Replacement belts can be purchased from
an Authorized Nautilus
®
Fitness Retailer.
Contact Heart Rate (T7.18 model only)
Through the use of stainless steel sensors built into the handle bar and using
sophisticated software, heart rate can be checked at any time during a workout. As
with the wireless telemetry chest belt, the heart rate is shown on the display in the
same manor.
The contact heart rate system’s ability to detect a heart rate signal is infl uenced 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. For this reason users
should avoid moving their hands while using the
contact heart rate grips. For reasons of safety it is
also recommended that users not use the contact
heart rate feature while running and instead use
the telemetry chest belt method. 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. These
individuals should opt for the telemetry method of heart rate monitoring.
Contact heart rate input signals are acquired only during contact between your
hands and the stainless steel sensors on the handrails. To use the contact heart rate
feature, place your hands around the handles so that your hands touch both the top
and the bottom of the sensors. After the initial contact heart rate signal is detected,
the controller will enter a validation phase requiring a good heart beat signal within
10 to 15 seconds, or until the system acquires a valid signal. During the validation
phase the display will not recognize telemetry heart rate signals. If, during exercise,
the heart rate displayed is erratic, it may be helpful to remove your hands from the
handles, wipe them and place them back on the handles.
HEART RATE MONITORING
T7_16-18_OM.indd 7 11/12/04 3:30:14 PM