Mindray WATO EX-55 - Test the Low Paw Alarm; AGSS Inspection; Check the Float

3-18
3.9.7 Test the Low Paw Alarm
1. Set the bag/mechanical ventilation switch to the position.
2. Select the [Alarm Setup] shortcut key and then [Ventilator >>].
3. Set the Paw low alarm limit to 2 cmH
2
O.
4. Disconnect the manual bag from the Y piece patient connection.
5. Wait for 20 seconds. View the alarm area and make sure that a low Paw alarm occurs.
6. Connect the manual bag to the manual bag port.
7. Make sure the low Paw alarm cancels.
3.10 AGSS Inspection
3.10.1 Check the Float
Install the AGSS. Check if the float floats off and exceeds the MIN level. If the float is tacky
or damaged, re-install the AGSS or replace the float.
NOTE
z 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.
a.Turn the top cover counterclockwise to separate it from the sight glass.
Top
cover