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Danger of explosion if the battery is replaced with wrong type.
Power Save Mode
The power save mode is enabled by default.
During the night, in between the hours 24:00 - 06:00 / 12:00am - 06:00am, the training computer
display will be switched off automatically. During this time the AutoSync function is not enabled. To exit
the power save mode, press any button. After five minutes, the display returns to power save mode.
The power save mode will not be enabled during training session recording.
The time period during which the power save mode is enabled, can be modified in the WebSync software,
to better suit your training schedule. For more information, see WebSync Help.
Battery Lifetime in RCX3
The battery lifetime for the RCX3 training computer is on average 7-8 months and depends on which
features and sensors you use. The suggestions below will help you to lengthen the battery lifetime.
To get the 8 months lifetime for the battery, take the following settings into use in your training computer:
• Set the AutoSync off in MENU > Connect > AutoSync > Off.
• Set the GPS sensor off in MENU > Settings > Sport profiles, 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 measures heart 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 G5 GPS sensor / Polar G3 GPS sensor W.I.N.D.. 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 heart rate sensor strap 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 heart rate sensor strap 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
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Important Information 47