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Examples of chain weights and lengths (Due to the variation of the measurements, Polar cannot be held
responsible for their validity):
Weight Length
Shimano Dura-Ace CN-7700
Super narrow HG
280 g 1473 mm
Shimano Dura-Ace CN-7701
Ultegra CN-HG92, 105
HG72,105 HG73
280 g 1473 mm
Shimano Sora CN-HG50 335 g 1473 mm
Campagnolo Record 2000, 10
Speed Chain
260 g 1473 mm
Campagnolo 10 Speed Chains
Chorus, Centaur
274 g 1473 mm
Campagnolo Veloce, Mirage, and
Xenon
277g 1473 mm
For precise readings, all settings must be as accurate as possible. Chain length and weight are directly
proportionate to power value. If they have, for example, 1% error, then the Power Value will also have
this 1% error.
There is no need to re-enter chain length and weight if links are removed. The system uses chain density
(weight/length). Removing links from the chain does not affect density.
• Power TEACH? is displayed:
To teach a new sensor, make sure you are not near (40 m/131 ft) other power sensors. To confirm
teaching, press OK. Test drive is displayed. To activate the sensor, press OK and rotate the crank a few
times. A flashing red light indicates that the sensor is activated. Completed! is displayed once the teaching
process is over. The cycling computer is now ready to receive power data.
• If Teaching FAILED is displayed, the cycling computer may be detecting the signal of more than one sensor
or the sensor is not activated. Make sure you are not near (40 m/131 ft) other power sensors and press
OK. Try again? is displayed. Press OK and rotate the crank a few times to activate the sensor.
• If you want to cancel teaching, press STOP. The already taught power sensor is taken into use.
For a video tutorial, go to http://www.polar.com/en/polar_community/videos.
*Optional sensor required.
ENGLISH
Using a New Accessory 27