7 Alarms
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7 Alarms
A distinction is made between two types of alarm:
Physiological alarms relate to ventilation of the patient.
Technical alarms relate to configuration of the device. The
technical alarms are active and cannot be configured.
7.1 Sequence in which alarms
are displayed
Alarms are divided into the three priority levels low
,
medium
, and high
.
If several alarms are triggered simultaneously, the highest-
priority alarm is always shown first. The lower-priority alarm
is retained and is displayed again once the higher-priority
alarm has been rectified.
7.2 Muting alarms
7.3 Configuring physiological
alarms
All physiological alarms are deactivated on delivery or when
the device is reset to factory settings. The medical
professional can decide which physiological alarms are
activated and make the alarm settings suitable for the
patient. Various alarms can be configured depending on the
ventilation mode selected.
Following a power supply outage of < 30 seconds, the set
alarm settings are restored automatically.
FUNCTION
ACTION
Acknowledge
alarm
Press alarm acknowledgement key
briefly.
If the alarm persists, the alarm is muted
for 2 minutes. The fault continues to be
displayed in the status line and the alarm
acknowledgement key
flashes until
the fault has been rectified.
Mute all acoustic
alarms for 2
minutes
Press and hold alarm acknowledgement
key
.
Suspend alarm
muting
Press alarm acknowledgement key
again briefly.
Risk of injury due to extreme alarm limit settings!
Alarm limits set to an extreme value may make the alarm
system unusable and put the patient at risk.
Set sensible alarm limits.
Risk of injury due to different alarm presets in
different clinical spheres!
It can put the patient at risk if different alarm settings are
used in different clinical spheres.
Make identical alarm settings in different spheres.
Before using the device, check whether the alarm
presets are suitable for the patient.
DISPLAY
CODE
CAUSE
ACTION
Apnea
458
No spontaneous breathing within set
time.
Check therapy and alarm settings.
Pressure high
456
Maximum pressure exceeded.
Check therapy and alarm settings.
Pressure low
457
Minimum therapy pressure undershot. Clean/change dirty filters.
Patient/ventilator interface leaking.
Re-adjust patient/ventilator interface.
Patient/ventilator interface defective.
Replace patient/ventilator interface.
Settings implausible.
Check therapy and alarm settings.
Rate high
453
Maximum respiratory frequency
exceeded.
Check therapy and alarm settings.
Rate low
452
Minimum respiratory frequency
undershot.
Check therapy and alarm settings.