After resetting the heart rate monitor watch, set up the heart rate monitor watch as
described under “heart rate monitor watch initial setup”.
Low battery warning indicator
If battery power is insufficient, the display of the heart rate monitor watch will show.
Replace the battery as soon as possible.
Replacing the battery
Battery replacements can be performed in conjunction with a water resistance test
by a watchmaker. If you wish to replace the battery yourself you may proceed as
follows:
Remove the 4 screws on the back side of the heart rate monitor watch with a small
Phillips head screwdriver. Open the case back (1). Use a small, flat tool to lift the
battery (2). Remove the battery and insert a new 3V CR2032 battery (3) with the
positive terminal facing upwards. Check the correct seating of the gasket. Close the
case back, reinsert and fasten the screws.
Water resistance
Water resistant up to 3 bar. The bar value specifies the atmospheric overpressure
which is applied during testing (DIN 8310).
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