11 Maintenance
11 Maintenance
Certain maintenance operations are the responsibility of the user, whilst others must be performed by
a technician.
For any operation requiring the ventilator to be opened, call on a technician.
Air Liquide Medical Systems
holds available to maintenance staff a maintenance manual containing
the circuit diagrams, component lists, descriptions, calibration instructions and all other information
relevant to maintenance staff.
11.1 By the user
The user must:
•
Drain the patient circuit water traps as often as necessary,
•
Clean, disinfect and sterilize the re-usable components after each patient: the patient circuit, the
expiratory flow sensor and the expiratory valve Monnal EVA (see Expiratory assembly: flow sensor
+ expiratory valve Monnal EVA on page 93);
•
After each patient, change the items that are not re-usable (circuit, filters, expiratory valve, expira-
tion flow rate sensor, CO2 IRMA™ measurement probe airway adapter)
•
Replace the bacteriological filter according to manufacturer recommendations,
•
Replace the O2 sensor and expiratory flow sensor in the event of failure
•
Replace the Monnal Clean’in filter (see Monnal Clean’in filter (Type filtre HEPA: High- Efficiency
Particulate Air) on page 94;
•
Replace the air intake filter (see Air intake filter on page 95);
•
Check the remaining battery capacity approximately every six months (start ventilation, and check
that battery capacity is adequate) (see below),
•
The battery must be replaced after 500 charge/discharge cycles.
•
Replace lip seal every three months.
•
Go through a checklist before each use (see Checklist on page 135).
11.1.1 Battery life check
In order to assist users to check battery life, an acknowledgeable alarm ‘Perform battery test!’ is trig-
gered every 6 months, and prompts users to perform a battery test.
This test is accessible in Standby mode by pressing the
[Menu]
and
[Machine Configuration]
keys.
Note:
To access the test, the device must be connected to the AC power supply, and the bat-
tery must be fully charged. The test may last for more than 3 hours.
Once the test selected, a window is displayed, and users may start or cancel the test.
Note:
Do not connect to other devices (patient circuit). Do not disconnect the device from
the AC power supply.
When the test starts, the device will automatically switch to its internal battery. Discharge it completely
then automatically switch to the AC power supply. A window displays a figure indicating the remaining
battery life, compared to a new battery (3 hours’ battery life on standard ventilation as indicated in the
technical description in this manual).
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