Covidien Puritan Bennett 540, User Manual, Page: 33 / 141

Front Panel
Puritan Bennett 540™ Ventilator User’s Manual
2-3
For additional information, refer to section A, “Specifications.”
2.5 Front Panel
Figure 2-1. Front Panel
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1 LCD Display – Displays information about the ventilator
including patient hours and software version, ventilation
modes and settings, and monitored and calculated
patient data and waveforms. The display also allows the
user to view and, using the Control Panel, adjust the
ventilator’s operating and alarm configuration settings.
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Exhalation Valve Port – Nipple for providing
piloting pressure to the exhalation valve. Controls
the open-closed position of the exhalation valve.
2 Control Panel – Features the controls for setting up and
operating the ventilator, and LEDs to indicate the
ventilator's power source, ventilation On/Off status, and
alarm priority level. Control functions include turning the
ventilation on and off, configuring ventilation modes,
silencing and canceling alarms, and setting device and
alarm parameters.
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Lateral and Front Openings – Vents that allow for
air circulation to cool the ventilator’s internal
components. In addition, these openings function as
sound ports for audible alarms.
WARNING
Do not cover or obstruct these openings.
3 Patient Connection Port – Provides an outlet for the air
to be delivered to the patient via the patient circuit.
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From Patient Port - Exhaled volume measurements
are taken from this port, through which a portion of
the exhaled gas is diverted to the exhalation flow
sensor. VTE is calculated from this flow
measurement.
a
4 Patient Pressure Monitoring Port – Nipple for
monitoring proximal patient pressure.
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Exhaled Gas Outlet– Exhalation Valve connects
here.
a. If exhaled volume monitoring is required, use the double-limb circuit for exhaled tidal volume or minutes volume monitoring.