Mindray WATO EX-55, Service Manual

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5-50
（
5
）
Mount the circuit adapter test fixture onto the patient circuit.
（ 6 ） Connect the Φ 6 silicone tubes and PU tube (6X300) to the injector connector,
pressure sensor (of the anesthesia machine calibration device) connector (positive
pressure end), and No.2 connector to which drive gas corresponds on the circuit
adapter test fixture by using a Y piece, as shown below.
（
7
）
Push in the push rod of the injector to let the pressure reading on the anesthesia
machine calibration device rise to 30 to 35 cmH
2
O and then stop pushing. Keep the
relative position between the push rod and the injector unchanged. If the pressure
reading on the anesthesia machine calibration device falls more than 10cmH
2
O within
30s, this test is failed. It indicates that the bellows housing or the bag position of the
bag//mechanical ventilation switch is leaky.
4. Leak test of all pipelines on the circuit adapter
Tools required:
„ Negative pressure ball (quantity: 1)
„ Circuit adapter test fixture (quantity: 1)
„
PU tube (6X100) (quantity: 1)
Test procedures:
（
1
）
Turn off the system switch.
（ 2 ） Turn off the flow regulators.
（
3
）
Turn off ACGO.
（
4
）
Remove the patient circuit.
（ 5 ） Mount the circuit adapter test fixture onto the circuit adapter.