Mindray A8 Operating Instructions

Operator’s Manual of Anesthesia System 5 - 11
Preoperative Tests Flow Control System Test
5. Adjust the Air flow. Make sure that the displayed reading of electronic flowmeter is consistent
with the setting.
6. Set [Balance Gas] to [N
2
O].
7. Adjust the N
2
O flow gradually. Make sure that the O
2
flow increases with the increase of N
2
O
flow and that the O
2
and N
2
O flows are in the proportion of 1 to 3.
8. Set both O
2
flow and N
2
O flow to 5 L/min.
9. Turn off the O
2
pipeline supply.
10. Push the [O
2
Flush] button to release the pressure inside the system.
11. Make sure that the technical alarm of [O
2
Supply Failure] appears, and the N
2
O flow is zero.
12. Make sure that a N
2
O flow value is read and finally stabilized at 5 L/min after the O
2
pipeline
supply is turned on.
13. Open the BFCS cover, start the BFCS and make sure that a prompt message of [BFCS in Use]
appears.
14. Make a visual check to ensure that the total flowmeter shows a basal flow of approximately 1 L/min.
15. Adjust the Air needle valve. Increase Air flow gradually and make sure that the total flow can rise
to more than 10 L/min. Close the Air needle valve.
16. Adjust the O
2
needle valve to increase the O
2
flow gradually and make sure that the total flow
can rise to more than 10 L/min. Adjust the flow to 10 L/min.
17. Close the O
2
needle valve.
18. Rotate the O
2
needle valve for half a circle.
19. Close the BFCS cover, and the Main Screen will prompt a menu to confirm disabling the flow
control system. Select [Ye s ] and ensure that the [Manual valves must be closed!] prompt
message appears.
20. Close the O
2
needle valve and close the BFCS cover again. The Main Screen prompts a menu to
confirm disabling the flow control system. Select [Ye s], and the prompt message disappears.
21. Open the BFCS cover and turn the Air needle valve for half a circle.
22. Close the BFCS cover, the system automatically opens the BFCS cover and the Main Screen will
prompt a menu to confirm disabling the flow control system. Select [Ye s ] and ensure that the
[Manual valves must be closed!] prompt message appears.
23. Close the air needle valve and close the BFCS cover again. The Main Screen prompts a menu to
confirm disabling the flow control system. Select [Ye s], and the prompt message disappears.
NOTE: In the event that the BFCS needle valve fails to be closed when you have
closed the BFCS cover, the system will prompt [Manual valves must be
closed!] if you proceed with other operations. In this case, check if all
the needle valves are fully closed.
NOTE: When checking the readings on the total flowmeter, keep your visual
angle at the same level of the float. The reading of the scale may vary
when viewed at a different angle.
24. Disconnect the pipelined gas supply or close the cylinder valve.
25. Set the System switch to the OFF position.

Mindray A8 Specifications

General

Brand	Mindray
Model	A8
Category	Medical Equipment
Language	English