System Calibration Calibration
4 - 42 046-001141-00 A5/A3™ Service Manual
4.3.4.1 Calibration Procedures 
NOTE: Before pressure calibration, make sure that the tubes are not leaky 
when connected.
NOTE: Do not move or press the tubes during calibration.
NOTE: You can select VT Plus for auto calibration. You can also select pressure 
calibration device which satisfies the accuracy requirement for manual 
calibration. Manual calibration is available in version 1.03.00 and 
higher.
4.3.4.1.1 Auto Calibration
Follow these steps to calibrate pressure sensors and the PEEP valve.
1. Make sure that the anesthesia machine is in standby mode.
2. Select Setup-> Service-> Calibration-> Pressure Sensors to access the screen shown below. 
FIGURE 4-48
3. Select Calibrate Automatically button to open the menu shown below.