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5. Countdown Timer Mode
Press the [M] button 4 times in current time mode to get to the countdown timer mode.
How to set the timer
• Hold the [M] button for 2 seconds until ‘Hour’
starts flashing.
• As shown in the diagram, press [M] button to
move between the settings (‘Hour’, ‘Minute’,
‘Second’).
• Press the [S/S] or [R] button to set the value
of the flashing setting (hold the buttons to
change set value at a higher speed).
• Hold the [M] button for 2 seconds to save
your setting and exit the setting sequence.
If NO keystroke has been activated for 1 minute,
the watch will automatically exit the setting
sequence.
How to use the timer
• Press the [S/S] button to start the countdown.
• Press the [S/S] button again to stop the countdown.
• During the countdown, the watch will beep once per
second the last 5 seconds, and beep for 10 seconds
when the timer has counted down to zero.
• The timer will automatically go back to the preset
value when the long beep is finished.
How to reset the timer
• Press the [S/S] button to stop the countdown.
• Press the [R] button to reset the timer to the starting
value
How to go back to current time mode
• Press the [M] button 1 times in countdown timer
mode to go back to the current time mode.
6. Heart Rate Mode
How to get a heart rate reading
• Wear the watch around your wrist.
• Press and hold simultaneously upper contact S1
with your middle finger and lower button S2 with
your index. Back contact S3 should be in firm
contact with your skin.
• Icons ‘ ’ and ‘ ‘ will appear and flash.
• Hold that position for 5 to 8 seconds until you hear
a beep and heart rate reading is displayed.
• The reading will be displayed for 5 seconds after
you removed your fingers before the watch automa-
tically exits the heart rate mode.
• It is recommended to clean your wrist and your
fingers with soap and water for a better signal
transmission. If your skin is very dry,
moistening fingers and wrist with water,
saliva or conductive gel (available at you
local pharmacy) may help. In any case, do
not use hand cream as it will insulate the
signal between the skin and the contacts.
NOTE: If long response time or no heart rate
reading, check for possible causes and
solutions in chapter 7 ‘Potential causes for no
heart reading or long response time’.
Heart rate zone alert function
• The heart rate alert is a function which alerts you when your heart rate is out of the
objective heartbeat zone. The heartbeat zone consists of settable upper and lower limits
expressed in Beats Per Minute (BPM).
• The Maximum Heart Rate (MHR) is calculated by this watch using the formula
:
