Polar M52, M21, M22, M51 user manual Crosstalk

motor driven exercise equipment, cellular phones or when you walk through electric security gates.

CROSSTALK

The non-coded Polar wrist receiver in mode of operation 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 wrist 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.

M I N I M I Z I N G P O S S I B L E R I S K S I N E X E R C I S I N G W I T H A H E A R T R A T E M O N I T O R

Exercise may include some risk, especially for those who have been sedentary. To minimize possible risks consider the following advice:

47