POLAR M71ti - Manual (Page 36)

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motor driven exercise equipment, cellular phones or when
you walk through electric security gates.
CROSSTALK
The non-coded Polar wrist receiver picks up transmitter
signals within 3 feet/1 meter. Therefore, make sure no
other transmitter is within that range. Signals from more
than one transmitter picked up simultaneously can cause
an incorrect readout.
EXERCISE EQUIPMENT
Several pieces of exercise equipment with electronic or
electrical components such as LED displays, motors and
electrical brakes may cause interfering stray signals. To try
to tackle these problems, relocate the Polar wrist receiver
as follows:
1. Remove the transmitter from your chest and use the
exercise equipment as you would normally.
2. Move the receiver around until you find an area in which
it displays no stray reading or flashing of the heart
symbol. Interference is often worst right in front of the
display panel of the equipment, while the left or right
side of the display is relatively free of disturbance.
3. Put the transmitter back on the chest and keep the wrist
receiver in this interference-free area as far as it is
possible.
4. If the Polar Heart Rate Monitor still does not work with
the exercise equipment, this piece of equipment may be
electrically too noisy for wireless heart rate
measurement.
Notice for persons with pacemakers, defibrillator or
other implanted electronic device
Persons who have a pacemaker use the Polar Heart Rate
Monitor at their own risk. Before starting use, we always
recommend an exercise test under doctor’s supervision. The
test is to ensure the safety and reliability of the
simultaneous use of the pacemaker and the heart rate
monitor.