Lowenstein Medical LUISA, Instructions Manual

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3 Product description
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3.6 Batteries
3.6.1 Internal battery
• The device is fitted with an internal battery. If the device
is no longer connected to the power supply or there is a
power outage, the battery automatically starts supplying
the device without interruption. This discharges the
battery. The battery is charged automatically again as
soon as the device is connected to the power supply.
In operation via a 12 V or 24 V supply, the battery is
charged only when the device is in the
Standby or Off
state.
• The internal battery is replaced by the manufacturer or
by a specialist dealer so authorized by the manufacturer.
• Battery life depends on therapy settings and ambient
temperature
(see “10 Technical specifications”, page
41) .
• When the Battery capacity low alarm appears, only 15
minutes’ life remains. When the Battery capacity
critical alarm appears, the device will switch off in a few
minutes’ time (less than 5 minutes’ life remaining). Have
an alternative ventilation option available and connect
the device to the power supply.
• If device and battery have been stored outside the
specified operating temperatures, the device can only be
started up once it has warmed up or cooled down to the
permitted operating temperature.
3.6.2 External batteries
• External batteries can be connected to the device as an
additional energy supply. If the device is connected to
the power supply, the batteries are charged; first the
internal battery, then the external batteries. In operation
via a 12 V or 24 V supply, the batteries are charged only
when the device is in the
Standby or Off state.
• If no power supply is connected, a battery supplies the
device. The external batteries connected are discharged
first, followed by the internal battery.
3.6.3 Display of remaining device life
Remaining device life in the case of battery and power supply
operation is displayed in the status line and in the
Views
menu (see “5.2.1 Views menu in the Patient menu”, page
15) .
Remaining life is a prediction and always relates to the
current mean consumption of the device.
Following the start of ventilation, no more than 3 minutes
will elapse before remaining life is displayed.
3.7 Trolley 2.0
You can use the oxygen cylinder clamp with oxygen cylinders
up to 120 mm in diameter (this corresponds to a cylinder size
of approx. 4 l to 6 l per cylinder). Note total cylinder height
(cylinder including valve and accessories).
DEVICE ON
STANDBY
DEVICE IN THE
ON STATE
POWER SUPPLY Value in % Value in %
BATTERY
SUPPLY
Value in %
Remaining battery
life in h and min.
Material damage if incorrectly configured!
If trolley 2.0 is not used properly, it may tip over or be
damaged.

Use the circuit holder only for the circuit.

Use the water bag holder only for the refill unit of the
active humidification system.

Use trolley 2.0 only on a maximum incline of 10°.

Ensure that the total weight of trolley 2.0 when fully
equipped is < 25 kg.
Before moving the trolley: Put the circuit holder in the
folded-away position.