User Manual for Fingertip Oximeter
-11-
7 Repair and Maintenance
7.1 Maintenance
The service life (not a warranty) of this device is 5
years. In order to ensure its long service life,
please pay attention to the use of maintenance.
A. Please change the batteries when the
low-voltage indicator lightens.
B. Please clean the surface of the device before
using. Wipe the device with alcohol first, and
then let it dry in air or wipe it dry.
C. Please take out the batteries if the oximeter will
not be used for a long time.
D. The recommended storage environment of the
device:
ambient temperature: -20ºC ~60ºC, relative
humidity 10%~95%, atmospheric pressure:
50kPa~107.4kPa.
E. The oximeter is calibrated in the factory before
sale, there is no need to calibrate it during its life
cycle. However, if it is necessary to verify its
accuracy routinely, the user can do the
verification by means of SpO2simulator, or it can