Microlife PF100 Manual De Instrucciones página 27

Other possible malfunctions:
If problems occur when using the device, the following points
should be checked
Malfunction
The display remains
empty.
Batteries have been
installed.
The instrument
frequently fails to
measure or the values
measured are wrong.
If you have any questions regarding the use of this device,
please ask your health care professional or contact Microlife
directly at 800-568-4147. The Microlife service team will be
happy to help you.
25
Remedy
1. Check the polarity of the
batteries (+/-)
2. If the display is erratic or
unusual, remove the batteries
and re-install new batteries.
1. Ensure that the measuring tube
is connected correctly
2. Check if when blowing into the
tube, the wing wheel is rotating.
Any objects, dust liquids or
mucous may interfere the
rotation of the wing wheel. In
this case clean the tube as
explained.
3. Discuss the values with your
doctor.