9
4)
The battery symbol will flashes at the low-battery state. Please charge in
time,otherwise this device will shuts down automatically.
5)
The fully charged lithium battery can work continuously for about 72 h.
6)
When it is not used for more than one month, it shall be charged at least once a
month during the storage period.
7)
Do not modify this equipment without authorization of the manufacturer.
8)
At
end
of
expect
service
life,
please
dispose
this
device
according the local environmental regulation.
9)
Do not disassemble or repair this device without permission, and do not
disassemble or replace the battery without permission.If you need to replace the
battery, please consult the manufacturer.
6. Operating Instructions
6.1 ON/OFF key
After assembly, long press (about 3 seconds) the ON/OFF key “
” to turn on/off
the device.
6.2 Measurement
Caution:
• In order to perform proper spirometry testing,please install this device refer to the
"Installation guideline" section.
• Hold this device with both hands or grasp it like a mobile phone. The user should
face with the display screen.
•
Place the upper part of the mouthpiece in the mouth,and make sure that no air leaks
from the mouth.
•
It is recommended to stand up while testing. During expiration,it is recommended to
bend forward the upper part of the body so as to release all the air out with the aid of
the abdominal muscles.
•
Accurate spirometry testing requires that the patient expire all the air in the lungs.