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3. Press and hold the Adjust button. The Timer and
Stopwatch will be reset, and all data in Lap or Interval
recall screens will be cleared. However, Time in Zone data
(time in, above and below zone, average and maximum
heart rate, and recovery time) will remain in memory.
Backlight
In any main screen, a short press of the Light button will
illuminate the backlight for four seconds.The backlight will
not illuminate when the Light button is pressed in a setup
screen or to silence an alarm.
Replacing Batteries
Transmitter Battery (Battery type: 3V Lithium
2032)
To remove the battery compartment lid, insert a coin into
the slot on the lid, and turn counterclockwise (see figure
__ ). Before removing the battery, note its orientation. The
positive pole should face the compartment lid, and the
negative pole should contact the metal prongs inside the
battery compartment. Orient the replacement battery in the
same manner. To ensure continued water resistance, make
sure the rubber O-ring is still in place around the edge of
the lid before reinstalling.
Watch Receiver Battery (Battery type: 3V
Lithium 2025)
To prevent damage to the receiver’s water-tight seal, we
recommend taking your receiver to a jeweler or watch
repair shop for battery replacement.
Trouble Shooting
What if the heart rate reading is erratic or total-
ly absent?
1. Make sure the chest strap is sufficiently tight. The strap
should be positioned and tightened so that the electrodes
are flat against your skin. Adjust the strap side to side or
slightly up or down until the strap is positioned properly,
and the electrodes make solid contact with your skin.
O-ring
Figure __ When changing
the transmitter battery,
remember to replace
O-ring correctly.
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