Cateye CC-RD420DW Instruction Manual download pdf (Page 3)

CC-RD420DW ENG

Heart rate sensor

Before wearing the heart rate sensor

Warning: Pace maker users should never use this device.

• Stop using the unit if you have skin irritation with the HR strap or elec-

trode pad.

• Do not twist or pull strongly the HR strap.

• The HR strap may deteriorate due to long-term use. Replace the HR strap

if it has frequent measurement errors.

Wearing the heart rate sensor

* Adjust the HR strap length to ﬁt your chest size (underbust). Fastening the strap too tightly may cause discomfort.

* Ensure that the electrode pad is in direct contact with the body.

* Wearing the heart rate sensor when your skin is dry or on top of your undershirt may produce measurement errors. To avoid errors, moisten the

electrode pad.

* The heart rate sensor consumes power when worn. Remove the heart rate sensor whenever measurement is not performed.

Heart rate

sensor

Heart rate sensor

HR strap

Hook

Back

Electrode pad

Push it in until it clicks.

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Cateye CC-RD420DW Instruction Manual Page 3