Operation Manual

TIPS

• The position of the chest belt affects its performance.

Move the chest belt along the strap so that it falls

above your heart.

• Avoid areas with dense chest hair.

• In dry, cold climates, it may take several minutes

for the chest belt to function steadily. This is

normal and should improve with several minutes

of exercise.

NOTE If the belt is kept idle without receiving a heart

rate signal for 5 minutes, the unit will automatically

return to Sleep Mode.

HEADPHONE

You can wear the headphone

as you would for a portable

audio player or similar device.

Connect the headphone directly

to the chest belt as shown.

NOTE For more information on how to connect the

radio (AH310, AH310A, AH310E models only) see FM

Radio section.

BASIC OPERATION

POWER ON

To turn the unit on:

1. Connect headphones.

2. Press and hold FUNC.

NOTE If no heart rate is detected for 5 minutes the

unit will automatically return to Sleep Mode.

TUTORIAL

The first time the unit is switched on a welcome

greeting will begin in the default language (English).

Press any key when you hear your desired language.

Then, listen to the voice prompts to change the other

settings (see table below). You MUST enter your

settings to use this product effectively.

NOTE When you replace the battery the unit will begin

the tutorial again. At the end of tutorial the unit defaults

to HR Measurement Mode.

AH300 / 310_EN OP R-1 10/19/05, 2:41 PM5