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13. Pre-use test
This section must be performed before use on a
patient.
This routine must be carried out every time the
ventilator is to be used.
Step 1: Ventilator setup
Carry out the “Ventilator Set-up” on page 58 before
commencing with the following tests.
Step 2: Hose and patient circuit setup.
a) DO NOT connect the hoses to the wall supply at
this time.
b) Ensure the mains supply is NOT connected.
c) Plug the flow sensor and cable into the
ventilator if required.
Step 3: Mains power alarm tests. (No gas
connected)
a) Turn ON the ventilator by pressing and holding
the power button for 2 seconds and then
release. (PASS/FAIL)
b) Listen for high priority alarm. (PASS/FAIL)
c) Listen for Mains fail triple beep. (PASS/FAIL)
d) Observe the mains
disconnected icon
is present in top left
of the display. (PASS/FAIL)
e) Observe “No gas” alarm in alarm window.
(PASS/FAIL)
f) Turn OFF the ventilator. Press and hold the
power button for 2 seconds and then release.
g) Listen for the complete power fail alarm.
(continuous tone). (PASS/FAIL)
h) Cancel the alarm by pressing the power button
again.
Step 4: Gas supply tests.
a) Connect the mains power supply
b) Turn ON the ventilator by pressing and holding
the power button for 2 seconds and then
releasing.
c) Observe mains connected indicator in the
top left of display shows mains power
present. (PASS/FAIL)
d) Connect the oxygen hose to the supply.
e) The “No Air” alarm should be triggered. (PASS/
FAIL)
f) Connect the air hose to the supply.
g) The “No Air” alarm should cancel. (PASS/FAIL)
h) Calibrate the flow sensor (or continue without)
by following the on-screen instructions, listening
for a beep when a control is pressed.(PASS/
FAIL)
Step 5: High pressure alarm test
Constrict the proximal airway tube by kinking it.
Within a second or two the pressure (on pressure
graph) shall rise and a “High pressure alarm” shall
occur. Release the tube. (PASS/FAIL)
Step 6: Final test
a) Check oxygen calibration completes with no
alarms. (PASS/FAIL)
b) The ventilator is ready for VENTILATORY
MODE SETUP and PATIENT CONNECTION.
Step 7: Ventilatory mode selection
Please refer to chapter ’16. Basic Set-up’ on page
84 for ventilatory mode setup.
Warning: If any of these tests do not function
as described and the problem can not be
rectified by reference to the pre-use test
checklist on page 65, then the unit should not
be used until it has been repaired. Please
contact an SLE approved engineer, or SLE.
Warning: The ventilator must not be
connected to the patient during this
procedure.
Where the user see the text (PASS/FAIL) this
step has a reference in the Pre-use Test
checklist that needs to be followed.
Note: If after completion of the above
procedure a BLOCK or LEAK alarm is present,
check all circuit fittings are correctly made
and secure. Press reset to clear alarm
conditions.
Do not continue until all alarms are cleared
The ventilator is now ready to be connected
to the patient under user supervision. Prior to
and after connection it is the users
responsibility to adjust and monitor the
ventilation parameters to suit the patients
medical condition.
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