Precor M9.35I manual Troubleshooting Heart Rate, Erratic heart rate readings

Troubleshooting Heart Rate

Table 6 may help you understand and troubleshoot erratic heart rate readings.

Important: A heart rate can only be detected when the Precor heart rate receiver is properly installed in the display and the treadmill is turned on. You must also wear the chest strap or hold on to both touch-sensitive handrail grips.

Table 6. Erratic heart rate readings

What appears on
the display	Cause	What to Do
Nothing	The heart rate	To receive Customer
	receiver is not	Support, refer to
	installed or it	Obtaining Service.
	has been
	disconnected.
— — —	A signal is being	Be sure the chest strap
	detected, but the	is in direct contact with
	transmission	your skin. If using the
	requires more	grips, use both hands and
	time to establish a	make sure your hands are
	heart rate.	moist, not dry.
Pulsing HR LED	The LED lights	If the LED is pulsating,
	briefly when a heart	it indicates that the
	beat is detected.	heart rate equipment is
		working properly.

Note: To conduct electrical impulses from a user’s heart, both touch-sensitive handrail grips must be grasped firmly for five to ten seconds. Usually, the concentration of salts in a person’s perspiration provides enough conductivity to transmit a signal to the receiver in the display console. However, because of body chemistry or erratic heartbeats, some people cannot use the heart rate feature. A chest strap may provide better results. Refer to the QuickStart Card for proper placement of the chest strap.

Owner’s Manual: Advanced Programming and Troubleshooting 58