Precor 776i - Manual (Page 63)

User's Reference Manual: Heart Rate Features 13
Troubleshooting Heart Rate
The following table 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. A user must
wear the chest strap or grasp both touch-sensitive grips.
Table 2. Erratic heart rate readings
What
appears
on the
display Cause What to do
Nothing The heart rate receiver is
not installed or it has
been disconnected. Call Customer Support. Refer to
Obtaining Service.
HR or Hr A signal is being
detected through the
chest strap or the
touch-sensitive grips, but
a valid heart rate is not
yet established. Be sure that the chest strap is
moist, centered, and in direct
contact with your skin. If you are
using the touch-sensitive grips,
continue to grasp both of them.
Wait a few moments for your
heart rate to appear.
Note: To conduct electrical impulses from a user’s heart, both
touch-sensitive 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 touch-sensitive grips. A
chest strap may provide better results.