Polar FS3c User Manual download pdf (Page 21)

7. PRECAUTIONS

7.1 INTERFERENCE DURING EXERCISE

Electromagnetic Interference

Interference may occur near high voltage power lines, trafﬁ c lights,

overhead lines of electric railways, electric bus lines or trams,

televisions, car motors, bike computers, some motor-driven exercise

equipment, cell 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 electric brakes may

cause interference with stray signals. To try to solve the problem,

relocate your wrist unit as follows:

1. Remove the transmitter from your chest and use the exercise

equipment as you would normally.

2. Move the wrist unit around until you ﬁ nd an area where it

displays no stray reading or the heart symbol does not ﬂ ash.

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 from interference.

3. Put the transmitter back on your chest and keep your wrist unit

in this interference-free zone as much as 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.

Crosstalk

The Polar wrist unit in non-coded mode

of operation picks up

transmitter signals within 3 feet/1 meter. Simultaneous non-coded

signals from more than one transmitter can cause incorrect

readings.

Using Your Polar Heart Rate Monitor in Water

Your Polar heart rate monitor is water resistant and can be used

when swimming. To maintain the water resistance, do not press the

button of the wrist unit under water.

Users measuring their heart rate in water may experience

interference for the following reasons:

• Pool water with a high chlorine content and seawater are very

conductive. The electrodes of a transmitter may short-circuit,

which prevents ECG signals from being detected by the

transmitter.

• Jumping into 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 an ECG signal.

• ECG signal strength is individual and also varies depending

on an individual’s tissue composition. The percentage of

people who have difﬁ culties with heart rate measurement is

considerably higher in water than in other use.

1 2 ... 16 17 18 19 20 21 22 23 24 25 26

Comments to this Manuals

No comments

Polar FS3c User Manual Page 21

Comments to this Manuals

Related products and manuals for Health and hygiene Polar FS3c