198 Instructions for use | Atlan A300, A300 XL, A350, A350 XL SW 1.0n
Troubleshooting
12.7 Flow measurement failure
If the flow measurement fails, mechanical ventilation can still continue. There may
be limitations with regard to displayed measured values, measurement accuracies,
and when triggering mandatory breaths. The flow sensors can be replaced as soon
as the device is in standby mode.
1. Remove the flow sensors, see page 239. Insert new flow sensors, see
page 253.
2. Perform the leakage test, see page 127.
12.8 Screen fault or failure of the graphical user interface
The screen does not respond to operation. It has failed or the screen display is
faulty.
1. Activate the backup manual switch, see page 38.
2. Use the emergency O
2 delivery, see page 37.
3. Check the vaporizer setting.
4. Ventilate the patient manually.
5. Ensure appropriate substitute monitoring.
12.9 Complete failure
The device no longer responds to user operation.
WARNING
Risk of device malfunction
If the breathing bag does not fill with fresh gas, the patient cannot be sufficiently
ventilated.
► Check the oxygen supply. If necessary, open the gas cylinder valves.
► If fresh gas still is not delivered or manual ventilation is not possible, close the
flow control valve of the O
2 flowmeter.
► Disconnect the patient from the device. Use a substitute device.
1. Activate the backup manual switch (see "Backup manual mode", page 38).
2. Follow the instructions on the product label.
3. If no ventilation of the patient is possible, use a manual resuscitator. Use a
substitute device.
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