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Connecting to an External DC Power Source
Puritan Bennett 540™ Ventilator User’s Manual
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4.3 Connecting to an External DC Power Source
Whenever AC power is unavailable, the ventilator can operate from a continuously powered external
12 – 30 VDC power source via a DC power cable (
Figure 4-5 , item 1) that connects to the ventilator’s
rear panel DC power input connector ( Figure 4-5 , item 2). The DC power cable is optional; refer to
Appendix E, “Parts and Accessories” , for more information. It is also possible to use the DC auxiliary
port (cigarette lighter) in a car as a power source as. Ensure the car’s engine is started prior to
connecting the ventilator.
Note:
•
When away from a wall power source or using an external battery, carry at least two external battery packs
with the ventilator.
•
An alternative means of ventilation should always be available, particularly when the patient is in transit or
away from wall power.
•
While using the ventilator on external battery power it is vital that a qualified caregiver (capable of providing
the necessary corrective actions in the event of alarm conditions) is present.
Figure 4-5. Connecting the Ventilator to an External DC Power Source
WARNING
•
The use of the device on an external 12 – 30 VDC power source does not allow charging of its internal
battery. Ensure that the internal battery is fully charged before connecting the DC power cable.
•
When using a car auxiliary adapter (cigarette lighter) ensure the car has been started prior to plugging
in the ventilator’s DC adapter.
Caution
Connect the external DC power source by first connecting the power cable to the ventilator and then to the
external DC source. Follow the reverse procedure to disconnect the device from the external DC power source.
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