3
Alarms
Power Fail
If the electrical power to the ventilator is interrupted, an audible
alarm will sound. This alarm will run for 5 minutes unless cancelled with the mute
button. Once cancelled the power fail alarm will not re-activate.
Low Internal Battery
When running on its internal battery, the alarm will operate when
the battery is almost depleted
The user cannot replace this battery. Refer to qualified technical personnel for
battery replacement.
Low External Battery
When running on an external battery, the alarm will operate
when the battery is almost depleted. Machines fitted with an internal battery will
automatically switch to internal battery power without alarming.
Low Pressure
A pre-set low pressure alarm is provided. If the control pressure falls
to below 50% of the set IPAP level for 10 seconds an audible and visual alarm will
operate.
High Pressure
A pre-set high-pressure alarm is provided. If the pressure rises above
120% of the working pressure, an audible and visual alarm will operate after a 2
second delay.
Breathing Circuit Disconnect
A disconnect alarm is provided. This is
activated by analysis of the inspiratory and expiratory flow waveform. An audible
and visual alarm will operate.
Breathing Circuit Malfunction
This alarm warns of a malfunction of the
exhale valve in the IPPV mode circuit.
High Flow alarm
An adjustable alarm is provided to warn of excess
inspiratory flow. This is activated when the inspiratory flow exceeds the set high
flow alarm level for 5 seconds. An audible and visual alarm will operate.
Low Flow alarm
An adjustable alarm is provided to warn of insufficient
inspiratory flow. This is activated when the inspiratory flow fails to achieve the
set low flow alarm level for 10 seconds. An audible and visual alarm will operate.
Fault
The alarm may also be operated by an internal fault. In this case the fault will
be displayed on screen.
These alarms may be muted for approximately 2 minutes to allow for setting up
of the ventilator.
Low Internal Alarm/Memory Battery
An intermittent alarm (short beep) with no
onscreen message indicates a depleted mains fail alarm battery. If the ventilator has
been stored for more than a few weeks the internal battery will self discharge. In this
case the alarm will stop after the battery has recharged.
The user cannot replace this battery. Refer to qualified technical personnel if the
alarm operates when the ventilator is in daily use.
