Leak Isolation Tests - GE Datex-Ohmeda Aisys Carestation Reference Manual

Aisys
7.6.3 Leak
Isolation Tests
Note
Test 1:
Verifying the integrity of the test tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Test 2:
Low-pressure leak testing the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
Test 3:
Testing the airway pressure transducer, and Port 1 and Port 3 u-cup seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Test 4:
Testing the bag port cover, the APL valve, the Bag/Vent switch, and the negative pressure relief valve . . . . . . . . . 7-18
Test 5:
Testing the APL diaphragm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Test 6:
Testing the bellows module and the Bag/Vent switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
Test 7:
Testing the bellows, the bellows pop-off valve, the bellows base manifold, and the Bag/Vent switch. . . . . . . . . . . 7-21
Test 8:
Testing the bellows assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Test 9:
Testing the flow sensor module, the circuit module, and the soda lime canister . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
Test 10:
Testing the circuit module and the canister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Test 11:
Testing the circuit module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Test 12:
Testing the inspiratory side of the circuit module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Test 13:
Testing the negative pressure relief valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
Test 14:
Testing the flow sensors only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
Test 15:
Testing a flow sensor including the Ventilator Monitoring Assembly and interfacing components . . . . . . . . . . . . . . 7-28
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WARNING
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CAUTION
7-14
The previous flowcharts refer you to the following tests.
These tests require the use of the Low Pressure Leak Test Device and the Leak Test Tool
Kit (refer to Section 10.1, "Service tools").
The Leak Test Tool Kit includes:
• the Machine Test Tool
• the Circuit Test Tool
• and various Test Plugs
When performing these tests on machines with an ACGO outlet, ensure that the ACGO
selector switch is set to the ABS (Circle circuit) position.
To perform most of these tests, you must boot the system with the PC Service
Application and access the diagnostics functions as described in the test.
Objects in the breathing system can stop gas flow to the patient. This can cause
injury or death:
• Do not use a test plug that is small enough to fall into the breathing system.
• Make sure that there are no test plugs or other objects caught in the
breathing system.
Do not use O Flush for leak isolation tests. Do not leave pressurized systems
2
unattended. High pressure and equipment damage may result.
04/08 M1046983