3.2 Measurement with an ear sensor

You can buy the ear sensor needed for pulse measurement from your Tunturi dealer or importer as an accessory.

Measure your pulse as follows:

1.Open the cover at the back of Alpha 200 and pushing the ear sensor connector into the interface connector. Lead the ear sensor wire out through the hole between the cover and the box, and close the cover.

2.Attach the ear sensor to the earlobe.

3.Attach the sensor wire to your shirt with the clip provided. This prevents the sensor and wire from moving.

If there are problems in pulse measurement:

::Check how the sensor works while not pedalling.

::A disturbance may be caused by the physiological properties of the earlobe. Try measuring on the inside surface of the ear or on

the tip of your finger.

::Rub the earlobe with your fingers to quicken circulation.

::If pulse values rise above 150 beats/min., earlobe measurement may be affected by the faster circulation.

::Sometimes a strong light source in the immediate vicinity of the user may cause disturbances.

Please clean the ear sensor after use with a damp cloth. Do not use solvents.

NOTE! Always detach the ear sensor connector from the user interface when you use the heart-rate belt. The ear sensor disturbs heart-rate measurement.

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Tunturi ALPHA 200 owner manual Measurement with an ear sensor, Measure your pulse as follows