Polar Expert Tips for Using Your Heart Rate Monitor Effectively

g PRECAUTIONS

Using Heart Rate Monitor while Cycling

While riding a bike, please keep your eyes on the road to prevent possible accidents and injury.

When using the speed sensor, check that you can turn your handlebar normally and that cable wires for the brakes or gearing do not catch on the sensor. Check also that the sensor does not disturb pedaling or the use of the brakes or gearing.

Using the Polar Heart in a Water Environment

Your Polar S120 is water resistant to 160 feet/ 50 meters.

Your Polar S150 is water resistant to 100 feet/ 30 meters.

Heart rate measurement in a water environment is technically demanding for the following reasons:

•Pool water with a high chlorine content and seawater may be very conductive and the electrodes of Polar transmitter may get short circuited and EKG signals cannot be detected by the transmitter unit.

•Jumping into the water or strenuous muscle movement during competitive swimming may cause water resistance that shifts the transmitter on the body to a location where it is not possible to pick up EKG signal.

•The EKG signal strength varies depending on the individual’s tissue composition and the percentage of people who have problems in heart rate measuring is considerably higher in a water environment than in other use.

Polar Heart Rate Monitor and Interferance

Electromagnetic Interference

Disturbances may occur near high voltage power lines, traffic lights, overhead lines of electric railways, electric bus lines or trams, televisions, car motors, bike computers, some motor driven exercise equipment, cellular phones or when you walk through electric security gates.

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.

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