GE Datex-Ohmeda Aisys Carestation Reference Manual page 214

Aisys
No Ventilation Troubleshooting
Start
Zero Flow
Sensors and
replace both flow
sensors
Proceed to "Inaccurate
Volume Ventilation Troubleshooting"
(Flowchart 8)
Troubleshoot Cable / VIB
Board failure.
9
Flowchart
7-32
Does Bellows
Verify Zero
Move?
Pass?
Yes
No
Check the output of the
No
Drive Gas Regulator
(Section 5.3)
Regulator
pressure OK at
25 psi?
Yes
Set Flow Valve to
120 L/min
Does high flow
exhaust from
drive gas port?
No
Yes
Examine Exhalation Valve
and diaphragm.
Does Circuit
pressurize?
Yes
Check for leaks in
vent drive gas circuit
Does Bellows
return to top of
Proceed to "Breathing
canister?
Troubleshooting"
Yes No
Yes
Perform All Calibrations and
Re-evaluate. Proceed to Inaccurate
Volume Ventilation Troubleshooting"
Check Hospital
No
pressure supply
Yes
Verify operation of
GIV. Troubleshoot
Cable / Board failure.
Check/Replace inlet
filter if necessary.
Correct Hospital
supply problem.
Proceed to "Breathing
System Leak
No
Troubleshooting"
(Section 7.6)
System Leak
Section 7.6
(Flowchart 8)
Hospital
Pressure OK
No
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