Mindray A7 Operating Instructions

A7™ Operating Instructions 046-004667-00 4 - 23
Preoperative Tests Vaporizer Tests
16. Adjust the O
2
needle valve. Increase O
2
flow gradually and check that the total flow
continues to rise to more than 10 L/min.
17. Turn the O
2
needle valve for half a turn.
18. Select Disable Backup Flow Control and check that the prompt message Close manual
valves prior to disabling Backup Flow Control displays.
19. Close the O
2
needle valve. Check that the prompt message Close manual valves prior to
disabling Backup Flow Control disappears.
20. Select Disable Backup Flow Control and check that the BFCS is retracted normally.
21. Push the BFCS button and make sure that the BFCS is deployed normally.
22. Turn the Air needle valve for half a circle.
23. Select Disable Backup Flow Control and make sure that the prompt message Close
manual valves prior to disabling Backup Flow Control appears.
24. Close the Air needle valve. Make sure that the prompt message Close manual valves prior
to disabling Backup Flow Control disappears.
25. Select Disable Backup Flow Control and check that the BFCS is retracted normally.
NOTE: If the needle valve for BFCS is not fully closed when selecting Disable
Backup Flow Control, the message Close manual valves prior to
disabling Backup Flow Control displays. In this case, check if all the
needle valves are fully closed. When the needle valves are fully closed,
select "Disable Backup Flow Control" to undeploy the BFCS.
NOTE: When viewing the readings on the total flowmeter, keep your visual
angle at the same level of the float. The scale reading may vary when
viewed at a different angle.
4.13 Vaporizer Tests
WARNING: During the vaporizer tests, the anesthetic agent exits from the fresh gas
outlet. Use a safe and approved procedure to remove and collect the
agent.
WARNING: To prevent damage, turn the flow controls fully clockwise (flow OFF)
before using the system.
Before the test, ensure that the vaporizers are correctly installed. For details about vaporizer
installation, see ‘‘Install the Vaporizer’’ on page 2-5.
4.13.1 Vaporizer Back Pressure Test
1. Connect the O
2
pipeline supply or open the O
2
cylinder valve.
2. Set the O
2
flow to 6 L/min.
3. Ensure that the O
2
flow stays constant.
4. Adjust the vaporizer concentration from 0 to 1%. Ensure that the O
2
flow must not decrease
more than 1 L/min through the full range. Otherwise, install a different vaporizer and repeat
this step. If the problem persists, the malfunction is in the anesthesia system. Do not use this
system.
5. Test each vaporizer as per the steps above.

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English