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Garmin 70 User Manual

Page 44

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42

FR70 Owner’s Manual

Appendix

Problem

Solution/Answer

The heart rate

monitor strap is

too big.

A smaller elastic strap is sold separately.

Go to

http://buy.garmin.com

.

The heart rate data

is inaccurate or

erratic.

• Make sure the heart rate monitor is snug against

your body.

• Warm up for 5–10 minutes. If the problem persists,

continue with the following suggestions.

• Reapply moisture to the sensors. Use water, saliva,

or electrode gel. Clean the sensors. Dirt and sweat

residue on the sensor can interfere with heart rate

signals.

• Synthetic fabrics that rub or flap against the heart

rate monitor can create static electricity that

interferes with heart rate signals. Wear a cotton shirt

or wet your shirt if suitable for your activity.

• Position the heart rate monitor on your back instead

of your chest.

• Strong electromagnetic fields and some 2.4 GHz

wireless sensors can interfere with your heart rate

monitor. Sources of interference may include very

high-voltage power lines, electric motors, microwave

ovens, 2.4 GHz cordless phones, and wireless LAN

access points. After you move away from the source

of interference, your heart rate data should return to

normal.