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4.10.4 ACGO Function Tests
4.10.4.1 ACGO Switch Alarm Test
NOTE
It is no need to do this test for the device which do nou configure with ACGO.
1. Exit Standby mode.
2. Turn the ACGO switch to the position of ACGO. The icon of ACGO appears on the
ventilation mode area on the screen. And ACGO prompt message appears on message
area.
3. Turn the ACGO switch to the position of patient circuit. Prompt message disappears.
4.10.4.2 ACGO Pressure Detection Function Test
NOTE
All devices configued with ACGO have pressure detection function.
1. Enter maintenance interface in Standby mode, and set the ACGO selection to
independent ACGO with three way valve.
2. Exit Standby mode, and enter VCV mode. After three (3) to five (5) normal ventilation
cycles, turn the ACGO switch to ACGO mode, and confirm VCV is replaced by ACGO
on the ventilation mode area on the screen.
3. Connect O2 supply and adjust the O2 flow knob to set the flow to 4.5~5.5L/min.
4. Block the independent ACGO outlet, and there should be pressure fluctuating on PAW
area of the screen.
4.10.5 AGSS Inspection
4.10.5.1 Check the Float
Install the AGSS and connect the gas supplies. Check if the float floats off and is between the
MAX and MIN levels. If the float fails to be between the MAX and MIN levels by turning the
flow adjustment knob at the top of AGSS, or if the float is tacky or damaged, re-install the AGSS
or replace the float.
NOTE
Do not block the AGSS pressure compensation openings during the inspection.
If the float fails to float off, the possible reasons are:
1. The float is tacky or stuck to the guide bar. Invert the AGSS and check if the float
moves up and down freely. If not, clean where the float and guide bar meet to remove
possible foreign substance. Replace the float or guide bar when necessary.
2. The filter screen inside the top cove may be occluded. Remove the filter screen as
described below and check if the filter screen is occluded.
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