33
Nautilus® Commercial Series Bike Owner’s Manual
HEART RATE MONITORING
PACEMAKER USERS SHOULD NOT
USE THE TELEMETRY TRANSMITTER
WITHOUT FIRST CONSULTING WITH
THEIR DOCTOR.
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Heart rate monitoring helps users monitor their levels of exertion by displaying the heart rate during
exercise. There are two methods of monitoring heart rate on the Commercial Series U916 and R916 bikes:
• Telemetry (e.g. using a Polar® or Polar-compatible transmitter belt). A
Polar-compatible heart rate chest belt transmits the heart beat signal to
the receiver in the display. The display shows
the heart rate in beats per minute and uses the
heart rate value in heart rate control mode.
• Contact heart rate (handgrip). Sensors on the
handgrip detect heart rate and display it on the
controller.
Telemetry Heart Rate
The telemetry heart rate monitoring system consists of the receiver, located in the display, and a
transmitter belt (purchased separately) worn across your chest. The monitoring function is activated as
soon as you strap on the chest belt and step within range of the receiver in the machine. Two electrodes
on the underside of the chest belt sense the heart rate signal and send it to the receiver. The far right
decimal point in the Heart Rate Display pulses to indicate that the display is receiving a valid signal.
A microprocessor in the controller calculates the heart rate and shows it, in beats per minute, on the
display.
Before you put the transmitter belt on, wet the two electrode patches (the grooved rectangles on the
reverse side of the belt). Secure the transmitter belt as high under the pectoral muscles (chest) as is
comfortable. The transmitter belt should fit snugly and comfortably, and allow normal breathing.
After the initial belt signal is detected, the display will enter a validation phase in which four good heart
beat signals lasting four seconds are required before locking on telemetry heart rate signals for the
duration of the workout session.
If your heart rate is not being displayed, try the following:
• Move closer to the display.
• Tighten the elastic band on the chest belt.
• Adjust the belt higher or lower on your chest.
• Remoisten the electrodes.
• Test your chest strap with a machine that you know is working, or with a heart rate watch that you
know is working.
