Polar M71 manual Frequently Asked Questions, W H A T S H O U L D I D O I F

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 1 metre/3 feet. 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.

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FREQUENTLY ASKED

QUESTIONS

W H A T S H O U L D I D O I F . . .

... OWNZONE DETERMINATION ONLY SELDOM GIVES ME HEART RATE LIMITS WHICH ARE BASED ON HEART RATE VARIABILITY (O.Z.V)?

1.Check that the elastic strap is snug enough.

2.Make sure that the electrodes of the transmitter are moistened against your skin.

3.Put on the transmitter 15-20 minutes prior to the start of your exercise to ensure good adaptation between the electrodes and your skin.

4.Start the first stage of determining your OwnZone sufficiently slowly. If you obtain the heart rate limits based on age within the first 2 minutes you have raised your heart rate too quickly. The heart rate reading should not rise over 20 beats/minute from the starting level. During the first stage you can, for example, put on your sports clothing.

5.If you reach the OwnZone limits based on age (O.Z.A) or the previously determined OwnZone limits based on your heart rate variability (O.Z.L) only after 10 minutes from starting specification you have not raised your heart rate sufficiently rapidly. Raise your heart rate more quickly during the OwnZone determination.

6.If you have always used walking and running to determine your OwnZone, walking uphill, cycling or using an ergometer may work better for you.

7.Stress or heavy mental loading may reduce your heart rate variability so that the needed point where the heart rate variability vanishes cannot be measured. Relax for 5 - 10 minutes before OwnZone determination by sitting down and decreasing your heart rate.

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m71ti manual GBR/B 36-37

16.1.2001, 11:01