17
measurement or during venous infusion.
5)
Do not let anything block the emitting light from
device, e.g., nail polish will affect the accuracy of
measurement.
6)
Vigorous exercise and electrosurgical device
interference may affect the accuracy of
measurement.
7)
Long fingernail may cause failure of measurement
or inaccurate result.
8)
The orientation-sensor works on the basis of
gravity. A small movable metal ball is built in the
orientation-sensor for detecting the orientation of
