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Replacing the heart rate
chest strap battery
If you cannot measure your heart rate, you may need to
replace the heart rate chest strap's battery.
The chest strap uses a CR2032 lithium battery.
1
Use a flat object, such as a coin or a slotted
screwdriver, to remove the battery cover.
Note:
You can prevent damage to the cover by
wrapping the flat object in a thin piece of fabric.
2
Remove the battery.
3
Turn the battery over so that the negative side is
facing up and put it back in, and then wait for at
least three seconds.
The heart rate chest strap resets.
Note:
Any remaining charge in the chest strap's sensor
circuitry is dispersed by removing the battery,
reinserting it with the negative side facing up,
and waiting for at least three seconds.
If the heart rate monitor temporarily freezes, you
can also reset it using this method.
Measuring heart rate
4
Insert a new battery.
Make sure the + side is facing up.
5
Replace the battery cover.
c
Note:
When disposing of the heart rate chest strap
battery, follow your local laws and regulations.
68
Important:
If the internal seal has come out, put it
back in its original position, and then close
the cover. If the seal gets caught or broken
when closing the cover, sweat or water
could enter into the device and cause a
malfunction
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