5 Troubleshooting
5-22
05/04 1006-0453-000
Ventilate
Manually:
XXXXXX
Minimum
Shutdown
-or-
Minimum
Monitoring
Refer to specific alarm message represented
by XXXXXX.
Vext_ref Out-
of-Range
Minimum
Shutdown
(6)
+1.225V out-of-range
Replace the CPU board.
Volume
Apnea
medium
In-range flow data
available
No measured breaths in
the last 30 seconds
Check that mechanical ventilation is on.
Check the breathing circuit.
Check ventilator settings and volume output.
A breath is measured or apnea alarm detection off
(cardiac bypass “in progress” or ACGO on).
Volume
Apnea > 2
min
(3)
high
(5)
In-range flow data
available
No measured breaths in
the last 120 seconds
Check that mechanical ventilation is on.
Check the breathing circuit.
Check ventilator settings and volume output.
A breath is measured or apnea alarm detection off
(cardiac bypass “in progress” or ACGO on).
V
T
Not
Achieved
low
In-range flow data
available
V
TI
< V
T
- (bigger of (0.1
⋅
V
T
or 5 mL)) for 6
mechanical breaths in a
row
Check ventilator settings, is P
limit
set too low
for volume setting?
Check drive gas.
Check the breathing circuit and flow sensor
connections.
Perform flow sensor calibration.
Replace the flow sensors.
Check SIB to CPU cabling.
Replace the SIB board.
Replace the CPU board.
Alarm condition becomes false (i.e., 1 breath
exceeding threshold) or mechanical ventilation
transition on to off.
V
T
Compensation
Off
(
1.X and 3.X
)
medium
(1)
Active ventilation mode
is backup volume
Check the breathing circuit and flow sensor
connections.
Check the flow sensors for proper connection.
Perform flow sensor calibration.
Replace the flow sensors.
Check SIB to CPU cabling.
Replace the SIB board.
Replace the CPU board.
Alarm condition becomes false.
Message
Alarm type/
Priority
Enabling Criteria
Alarm Condition
Service Repair
Removal Criteria
Summary of Contents for Aestiva 7900 SmartVent
Page 1: ...Aestiva 5 7900 Anesthesia Ventilator Technical Reference Manual ...
Page 44: ...Notes 2 28 05 04 1006 0453 000 ...
Page 82: ...Notes 4a 36 05 04 1006 0453 000 ...
Page 116: ...Notes 4b 34 05 04 1006 0453 000 ...
Page 150: ...Notes 5 34 05 04 1006 0453 000 ...
Page 158: ...Notes 6 8 05 04 1006 0453 000 ...
Page 182: ...Notes 7 24 05 04 1006 0453 000 ...
Page 202: ...Notes 8 20 05 04 1006 0453 000 ...
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