System Calibration Calibration
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FIGURE 4-15
7. The screen shown below is displayed after a successful flow sensor calibration. Select Done to 
exit the calibration screen.
FIGURE 4-16
NOTE: If measurement deviations are not corrected after multiple flow sensor 
calibrations, the user is recommended to replace the flow sensor and 
then perform calibration. If the problem persists, factory maintenance 
is necessary. 
4.3.3 Flow Calibration (Service)
NOTE: Flow Calibration (Service) is necessary in case of replacing the 
ventilator control board, drive gas assembly or solenoid valve 
assembly.
NOTE: When a great deviation is detected between the measured value of the 
built-in flow sensor and that of the standard flow measurement device, 
you need to perform Flow Calibration (Service).