Leak and Compliance Tests Preoperative Tests
4 - 14 046-003777-00 A5/A3™ Operating Instructions
4.5.2 Manual Circuit Leak Test
The Manual Circuit Leak Test screen is displayed in FIGURE 4-2:
FIGURE 4-2 Manual Circuit Leak Test screen
To Perform a Manual Circuit Leak Test:
NOTE: If fresh gas is detected by the system before proceeding with the
Manual Circuit Leak Test, a message is displayed on the screen to adjust
all flowmeters to zero.
1. From power up:
If the A5/A3 System is being powered on, the system automatically initiates a self-test and
enters the Preoperative Check List screen. Select Continue to enter the Automatic Circuit
Leak and Compliance Test and the Manual Circuit Leak Test. If the Skip button is
selected, the system bypasses these tests and enters the Standby screen.
or
From the main screen:
Select the Setup softkey > General tab > Test Leak/Compliance button.
2. Follow the instructions on the screen:
1. Adjust the APL to the 50 cmH
2
O position.
2. Adjust all flowmeters to zero.
3. Set the Auto/Manual switch to Manual.
4. Press the O
2
flush button until the PAW gauge value is between 25 and 35 cmH
2
O.
5. Select “Continue” to proceed with the Manual Circuit Leak Test.
or
Select “Skip” to go directly to operational mode.
NOTE: The “Continue” button can be selected only when the Auto/Manual
switch is set to the Manual position and when no fresh gas is detected.
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