6-6 
 
6.3.1.2 Calibration Procedure 
Perform the following steps to calibrate flow sensors. 
1.    Enter the standby mode. 
2.    Select 
  > Calibrate to access the screen shown below. 
 
3.    Ensure that the drive gas pressure is sufficient. 
4.    Remove the water collection cup. 
5.    Plug the Y-piece into the leak test port and seal the breathing system. 
6.    Select Begin to start calibration. During calibration, you can select Cancel to abort the 
calibration.