Oregon Scientific SE138 Manuel De L'utilisateur page 5

screws in a safe place to avoid losing them.
2. Remove the old battery and insert the new one
matching the polarities.
3. Replace the lid by screwing it back into place.
HEART RATE MEASUREMENT
You can measure your heart rate anytime (except in
setting sub-modes).
1. Wear the watch on your wrist and place fingertips
(suggest to use index finger and middle finger) on both
metallic plates to enter Heart Rate Mode. A beep tone
will be heard and "HR" banner will flash to indicate the
watch is detecting heart rate reading. It will take between
6-10 seconds to detect a heart rate reading.
2. If a valid heart rate reading is detected, another
beep tone will be heard and the screen below will be
displayed. Remove your fingers.
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3. To exit Heart Rate Mode, remove your fingers for 3
seconds or press MODE.
TIP
For accurate heart rate reading, make sure:
you are not running or doing exercise
•
to wear the watch on your wrist and your fingertips
•
touch the 2 metallic plates
If you cannot get your heart rate reading within 10 seconds or
if any unusual condition occur during heart rate reading:
moisten your fingertips
•
make sure your fingertips are warm and steady
•
do not press too hard on the metallic plates
•
make sure the metallic plates and the back of your
•
watch are clean
NOTE
Heart rate measurement cannot be activated if
•
keypad is locked or battery power is low.
Clean the watch with a soft dry cloth.
•
The 2 metallic plates are very sensitive. Accidentally
•
touching them will trigger heart rate measurement.
Hence, to prevent from accidentally activating heart rate
measurement, you can select to lock the keypad.
If the battery power is low, the screen below will be
•
displayed.