Step 2: After selecting the Therapy Setting Mode, press the button to select mode. Rotate the
right side and select from APAP mode into CPAP mode.
Step 3: After selecting the CPAP Mode, rotate the button to the right to choose therapy pressure
in 4.0 cmH2O.
Note: Remember to set your ramp time at 0 to save your test time. Please use the same order to
check the air pressure test point 10.0 cmH2O and air pressure test point 20.0 cmH2O; while
adjusting the pressure, please press the button to select the pressure, the button
to the right is to increase the pressure, and the button to the left is to decrease the
pressure.
Step 4: Press the button to the first pressure test point and check if the pressure value accuracy is in
± 0.5 cmH2O; please do the pressure calibration again if the pressure value is out of the range.