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Danger of explosion if the battery is replaced with wrong type.
Battery Lifetime in RCX5
The battery lifetime for the RCX5 training computer is on average 8-11 months and depends on which
features and sensors you use. The suggestions below will help you to lengthen the battery lifetime.
To get the 11 months lifetime for the battery, take the following settings into use in your training
computer:
• Set the AutoSync off in WebSync software.
• Do not use the GPS sensor when you do not need speed, distance or location data.
Precautions
The Polar training computer shows your performance indicators. It indicates the level of physiological
strain and intensity during your exercise. It measuresheart rate, speed and distance when cycling with a
Polar CS speed sensor W.I.N.D. It also measures speed and distance when running with a Polar s3+ stride
sensor or with a Polar G3/G5 GPS sensor. The Polar CS cadence sensor W.I.N.D. is designed to measure
cadence when cycling. No other use is intended or implied.
The Polar training computer should not be used for obtaining environmental measurements that require
professional or industrial precision.
Interference During Training
Electromagnetic Interference and Training Equipment
Disturbance may occur near electrical devices. Also WLAN base stations may cause interference when
training with the training computer. To avoid erratic reading or misbehavior, move away from possible
sources of disturbance.
Training equipment with electronic or electrical components such as LED displays, motors and electrical
brakes may cause interfering stray signals. To solve these problems, try the following:
1. Remove the transmitter from your chest and use the training equipment as you would normally.
2. Move the training computer around until you find an area in which it displays no stray reading or does not
flash the heart symbol. Interference is often worst directly 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 your chest and keep the training computer in this interference-free area as
much as possible.
If the training computer still does not work with the training equipment, it may be electrically too noisy for
wireless heart rate measurement.
For further information, see www.polar.fi/support.
Minimizing Risks When Training
Training may include some risk. Before beginning a regular training program, it is recommended that you
answer the following questions concerning your health status. If you answer yes to any of these questions,
we recommend that you consult a doctor before starting any training program.
• Have you been physically inactive for the past 5 years?
• Do you have high blood pressure or high blood cholesterol?
• Are you taking any blood pressure or heart medication?
• Do you have a history of breathing problems?
• Do you have symptoms of any disease?
• Are you recovering from a serious illness or medical treatment?
• Do you use a pacemaker or other implanted electronic device?
• Do you smoke?
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Important Information 53