Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 2 - 37
Installation Guide Pneumatic Leak Tests
2.4.5.2 EFCS 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 #123 from the 3 way valve assembly and plug the connector on the 3 way
valve assembly.
4. Turn the unit on and set the A7 in EFCS mode.
5. Enter SERVICE / FCS TESTS:
• Set 3-Way Valve (CPU) to “H”
• Set 3-Way Valve (FPGA) to “H”
• Set O2 Prop Valve DA to “4000”
• Set N2O Prop Valve DA to “4000”
• Set AIR Prop Valve DA to “4000”
6. Pinch the O2 line pressure hose.
7. Remove the O2 line pressure hoses from the line source while keeping the hoses pinched. The
pressure measured on the line pressure O2 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 N2O line pressure hose.
10. Remove the N2O line pressure hoses from the line source while keeping the hoses pinched. The
pressure measured on the line pressure N2O gauge on the front of the unit should not fall more
than 10 psi per 100 seconds (2 psi per 20 sec).
11. Release the N2O line pressure hose.
12. Pinch the AIR line pressure hose.
13. Remove the AIR line pressure hose from the line source while keeping the hose pinched.
14. 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).
15. Enter SERVICE / FCS TESTS:
• Set O2 Prop Valve DA to “0”
• Set N2O Prop Valve DA to “0”
• Set AIR Prop Valve DA to “0”
16. Remove the plug from the 3 way valve assembly and reconnect hose #123.
17. Reconnect the O2, AIR and N2O line pressure hoses and remove the pinch in the hose.
2.4.5.3 ACGO Test
1. Turn the unit on and set the A7 in EFCS mode.
2. Set the Auto/Manual switch to Manual position.
3. Plug the ACGO port.
4. Set the O2 flow to 0.2L/min and set the unit to ACGO mode. The pressure must go over
30cmH2O with 1 minute.

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English