GETINGE GROUP Maquet SERVO-s VENTILATOR SYSTEM V7.0 User Manual page 49

Test
O cell / sensor test
2
Flow transducer
test
Battery switch test
Patient circuit test
Alarm state test
Alarm output
connection
SERVO-s VENTILATOR SYSTEM V7.0, User's Manual
Description
Calibrates and checks the O
sensor at 21% O and 100% O
2
Checks if the O cell is worn out.
2
Because different gas mixtures are
required for this test, it will not be
performed if one gas is missing.
Checks the inspiratory flow transducers.
Calibrates and checks the expiratory flow
transducer.
Tests switching to battery power when
AC power is lost and back to AC power
when it is restored.
Checks the patient circuit leakage,
compliance and resistance, with patient
tubing connected, using the inspiratory
and expiratory pressure transducers.
Allowed leakage: 80 ml/min at 50 cmH
Will allow the system to calculate a
compensation for circuit compliance (if
the leakage requirements are met).
Checks the patient circuit resistance,
with patient tubing connected, using the
inspiratory and expiratory pressure
transducers.
For ranges and accuracies, see chapter
Technical data on page 148.
Checks that no Technical error alarms
are active during the Pre-use check
Checks that the alarm activation
functions correctly.
Remedy if test fails
cell / Check that the connected gas supply
2
pressure (air and O
2.
specified range.
Replace the O
Replace gas modules (air and/or O
Check that the connected gas supply
pressure (air and O
specified range.
Check that the cassette is correctly
seated in the cassette compartment.
Check that the total remaining time for
the connected battery modules are at
least 10 minutes. If not, replace the
discharged battery with a fully charged
battery and repeat the test.
If the internal leakage test has passed,
the leakage is located in the patient
circuit. Check for leakage or replace the
patient circuit.
O.
2
Refer to service technician.
Check that the cable is connected to
the external system.
Refer to service technician.
| Operation overview
) is within the
2
cell.
2
2
) is within the
2
| 4 |
).
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