Charging; Turning The Watch On And Off; Sensors - Timex IRONMAN R300 Mode D'emploi

Watch Operation

Charging

Your watch should be fully charged before using. Attach the magnetic charging cable to the
watch's charging port as shown below. Plug the USB end of the cable into any powered USB
port or USB charger. Charging may take as long as two and a half hours if the watch battery is
fully depleted. Your watch's battery can last up to 25 days, but this will vary depending on
certain settings (backlight brightness, heart rate detection, and app notifications) and GPS
workout usage.

Turning the Watch ON and OFF

Press and Hold the Back button (Bottom Left Button) on the watch for 3 seconds to turn the
watch ON. To turn the watch OFF, Press and Hold the Back button on the watch for 3 seconds.A
menu will appear enabling you to either Power off or Restart the watch.

Sensors

Your watch has a built in optical Heart rate sensor (the 2 LED lights on the case back). Wearing
the watch too loosely may impact the data collection by the heart rate sensor.
Your watch also has a GPS which requires periodic software updates (A-GPS) to perform
optimally. Note that for proper recording of outdoor workouts you must wait for the GPS to
obtain your initial location (showing "GPS Ready" on the display) before starting your
workout.
Your watch also has a built-in accelerometer used to track activity (steps, distance and
cadence). The accelerometer is used for computing distance for non-GPS running and walking
workouts and may be calibrated using "Treadmill" workout mode for best accuracy. Your
watch uses a combination of the accelerometer and the heart rate sensor for tracking your
sleep.
Your watch also has a barometer (pressure sensor) for measuring changes in elevation during
outdoor workouts.
5