Pneumatic Circuit System Problems Repair and Troubleshooting
5 - 58 046-001141-00 A5/A3™ Service Manual
FIGURE 5-61
6. Release the negative pressure ball. If the negative pressure ball is fully expanded within 30
seconds, it indicates that the test of fresh gas pipeline has failed. Locate the leak inside the
main unit as per the method described in “Anesthetic Gas Delivery System” on page 5-35..
7. Turn on the system switch and let the systems enter Standby.
8. Select [Setup] >[Service] > [Diagnostic Tests] > [Valves] to set the A/D value of the PEEP valve
to make PEEP exceed 50 cmH2O. Set the A/D value of the inspiratory valve to “0” to produce
0 L/min of flow. Set PEEP safety valve to ON, as shown below.
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