Wearing The Chest Belt; Activating The Backlight - Oregon Scientific SE121 User Manual

WEARING THE CHEST BELT

The heart rate chest belt is used to count your heartbeat and transmit
the data to the watch. To wear the chest belt:
1. Wet the conductive pads on the underside of the chest belt with few
drops of water or a conductive gel to ensure a solid contact.
2. Strap the heart rate chest belt across your chest. To ensure an
accurate heart rate signal, adjust the strap until the belt sits snugly
below your pectoral muscles (Figure 3).
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.
If the watch is kept idle without receiving a Heart Rate signal for 5 minutes,
NOTE
the Heart Rate mode will quit and return to Clock mode.

ACTIVATING THE BACKLIGHT

Press LIGHT to turn on the backlight for five seconds.
The backlight does not work when the low battery indicator
NOTE
shown. This is to conserve battery power, and will return to normal
once the batteries are replaced.
SE121/132_Eng
Figure 3
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