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8. Inserting/replacing batteries
a) Heart rate monitor
The battery has already been inserted by the manufacturer. The battery
should only be replaced by a specialist!
If the display is blank upon delivery, press the buttons on the heart rate
monitor. The device might be in stand-by mode to save battery power.
• First take off the two parts of the wristband by pressing the two retaining pins together
using a suitable tool.
• Then remove the metal lid from the underside. Unscrew the screws.
• Insert a type CR2032 coin cell battery with the correct polarity. The positive terminal
("+") must point outwards towards you.
• Put the battery compartment lid back on and screw it tight.
• Re-attach the two parts of the wristband using the retaining pins.
• The battery must be replaced if the contrast of the LC display becomes very weak or
if the display remains blank.
