Casio 3554 Operation Manual page 38

Movements that Affect Heart Rate
Measurement
Activities that involve vigorous movement of
●
the arms only or other certain movements*
may affect heart rate measurement and
cause errors in the heart rate data displayed
by the watch.
* Activities involving vigorous wrist
movements or wrist rolling such as
playing a percussion instrument, tennis,
etc.
Warming Up Before Training
Weak blood circulation due to low
●
temperatures or cold hands may affect
heart rate measurement.
When performing training that involves
●
heart rate measurement, make sure to
warm up appropriately.
Measurement while [ON] is selected for
the heart rate measurement setting
While [ON] is selected for the heart rate
measurement setting, your heart rate is
measured intermittently (every two minutes).
If the watch determines that you are
performing some activity (based on behavior
analysis by the acceleration sensor), heart
rate measurement will be performed
continuously (every second).
Watch Operation Guide 3554
Blood Oxygen Level
Your watch can measure your blood oxygen
level.
A normal blood oxygen level is said to be 95%
to 100%, but this varies depending on your
activity level and physical condition.
Note
Note that values displayed by this
●
watch are for reference only. Should
you feel any abnormalities, consult
with your doctor immediately.
Important!
Before starting a blood oxygen level
●
operation, be sure to affix this watch to
your wrist. Starting a measurement
operation and then affixing the watch
to your wrist may make correct
measurement impossible.
The blood oxygen level measurement
●
function is not intended as a medical
device for diagnosing specific
diseases. It is intended for general
health maintenance only.
Measurement
Measuring Your Blood
Oxygen Level
Important!
It may not be possible to obtain blood
●
oxygen level measurement results if
you are in a cold location and your wrist
is cold. Warm your wrist before
attempting measurement.
If measurement at the same location
●
on your wrist fails continuously or if
measured values fluctuate widely,
change the location on your wrist
where you are wearing the watch. You
can also try moving the watch to your
opposite wrist for measurement.
Take several measurements under
●
identical conditions, moving the watch
around your wrist. Find the wrist
location where measurement is most
stable.
Do not take measurements
●
immediately after exercising. Wait until
your breathing stabilizes.
During measurement, keep your arm
●
still and do not move it.
During measurement, refrain from
●
talking and do not hold your breath.
38