Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 3 - 35
Periodic Maintenance Pneumatic Leak Tests
3.9.5 Line Pressure Leak Tests
3.9.5.1 BFCS Test
1. Remove the O2, AIR and N2O cylinder from the anesthesia system.
2. Connect the O2, AIR and N2O line pressure hoses to the line pressure inlet on the anesthesia
system.
3. Disconnect the hose #26 from the back pressure regulator and plug the connector on the back
pressure regulator.
4. Turn the unit on and push the BFCS button to deploy the BFCS.
5. Open the O2 and AIR needle valve fully.
6. Pinch the O2 line pressure hose.
7. Remove the O2 line pressure hose from the line source while keeping the hoses pinched. The
pressure measured on the line pressure gauge on the front of the unit should not fall more than
10 psi per 100 seconds (2 psi per 20 sec).
8. Release the O2 line pressure hose.
9. Pinch the AIR line pressure hose.
10. Remove the AIR line pressure hoses from the line source while keeping the hose pinched.
11. The pressure measured on the line pressure gauge on the front of the unit should not fall more
than 10 psi per 100 seconds (2 psi per 20 sec).
12. Remove the plug from the back pressure regulator and reconnect hose #26.
13. Close the O2 and AIR needle valves.
14. Reconnect the O2 and AIR line pressure hoses and remove the pinch in the hose.
15. Disable the BFCS.

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English