Mindray WATO EX-55Pro, Service Manual

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4-15
10. Release the quick oxygenation button. Observe the pressure gauge and ensure that the
pressure will not decrease.
11. Turn off the vaporizer.
12. Repeat steps 6 to 11 for the other vaporizer.
4.10 Other Functional Tests
4.10.1 Drive Gas Switching Function Test
NOTE

This test is for the device configured with drive gas switching function.

Connect O2 supply and Air supply both befire operating this test.

For the main drive gas, see the button of the upper left corner of the screen.
For the device of which the main drive gas is O2:
1. Disconnect O2 supply in automatic ventilation mode. Ensure a dialog of drive gas
pressure low appears, and then switch the drive gas, and select [Yes].
A sound of switch is heard, and the drive gas is switched to Air, and a message of drive
gas being switching to Air appears.
2. Exit Standby mode, and ensure the ventilation is normal.
3. Reconnect O2 supply, a dialog of O2 supply resumed appears.
4. Select [Yes], and confirm the device can switch the drive gas to O2 normally.
For the device of which the main drive gas is Air:
1. Disconnect Air supply in automatic ventilation mode. Ensure a dialog of drive gas
pressure low appears, and then switch the drive gas, and select [Yes].
A sound of switch is heard, and the drive gas is switched to O2, and a message of drive
gas being switching to Air appears.
2. Exit Standby mode, and ensure the ventilation is normal.
4.10.2 Auxiliary O2 Supply Flowmeter Accuracy Test
1. Verify the icons on the auxiliary O2 supply knob are upright when the auxiliary O2
supply knob is turned to 0.
2. Connect the auxiliary O2 supply outlet to VT-Plus inlet by conversion connector, and
set the gas type of VT-Plus to O2.
3. Adjust the auxiliary O2 supply knob to make the reading of flowmeter to be 2 L/min, 10
L/min, and 15 L/min, and confirm the accuracy meets the requirements in the following
table.
Auxiliary Gas Supply Flowmeter Accuracy
The main drive gas is Air