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4.2
Warning messages
In the case of a warning the health care professionals must be informed immediately. If the
key is pressed the acoustic and visual warning can be suppressed for 5 minutes. After 5 minutes
the warning is repeated.
Please note that the device cannot recognize all critical situations. Therefore in the following
cases there is no warning:
• Wound exudate or blood can accumulate in the wound dressing. This can lead to maceration,
infection or an undetected haemorrhage. Therefore regularly check the dressing. How fre-
quently the wound dressing needs to be checked and changed depends on the patient as well
as the wound. Observe the instructions from the attending physician.
• Blockages in the wound dressing, partial blockages in the hose system and small-scale leakag-
es cannot be recognized by the device. In such a case the device continues to be fully function-
al even though there is no negative pressure at the wound or the pressure is too low. There-
fore regularly check the dressing. How frequently the wound dressing needs to be checked
and changed depends on the patient as well as the wound. Observe the instructions from the
attending physician.
For negative pressure values ≤ 50 mmHg, possible hose blockages in the hose system cannot
be detected. Thus check the wound dressing and entire hose system at regular intervals How
frequently the wound dressing and the hose system need to be checked depends on the patient
as well as the wound. Observe the instructions from the attending physician.
With negative pressure values ≤ 50 mmHg, it is physically impossible to transport a secretion
column over a higher height difference. Therefore, never place the negative pressure unit higher
than the patient to prevent sagging hoses.
22
4.2.1
Battery discharged
The warning window (picture "Battery discharged") appears
if the remaining operating time is less than one hour. Please
connect the power supply unit as quick as possible.
By touching the
key this warning message can be sup-
pressed for 5 minutes. The therapy can be continued unhin-
dered.
If the message is ignored, the negative pressure unit switch-
es off automatically in order to protect the battery (see Chapter
4.2.6 "Automatic switching off").
4.2.2
Hose blocked
The error message (picture below) appears if the negative pres-
sure unit detects a blockage in the canister or hosing system.
The following causes can trigger the error message:
• Kinks in the hosing system: Store the hose in such a way that
kinks cannot occur.
• Blockages at the connection points: Check all connection
points for possible blockage and incorrect connections.
By touching the
key this warning message can be sup-
pressed for 5 minutes.
If the fault cannot be rectified by way of the above meas-
ures, the secretion canister should be changed.
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