Covidien Puritan Bennett 540, User Manual, Page: 81 / 141

Puritan Bennett 540™ Ventilator User’s Manual
5-1
5 Operating Procedures
5.1 Turning on The Ventilator
To turn the ventilator on, do the following:
Set the I/O switch (a covered, rocker-type switch located at the rear of the ventilator) to the I position,
as shown in Figure 5-1 below.
Figure 5-1. Turning on the Ventilator
The following events occur:
•
The ventilator is powered on.
•
A Power On Self Test (POST) is carried out (when plugged in to an AC power source): the front
panel indicators flash (except for the indicator showing the type of power supply in use, which
remains lit) and the audible alarms briefly sound.
•
The display’s backlight turns on.
•
The PURITAN BENNETT logo is momentarily displayed.
•
The blue VENT STDBY indicator to the right of the VENTILATION ON/OFF key illuminates,
indicating the device is in standby mode.
•
A Welcome Menu screen is displayed for about five (5) seconds, which includes the machine
counter and the patient counter, as shown in
Figure 5-2 .
Caution
After storage of the Puritan Bennett 540™ Portable Ventilator in an atmosphere that differs significantly in
temperature from where it is installed—typically, ± 36 °F (20 °C)—stabilize the device at room temperature for at
least two (2) hours prior to starting it.
NOTE: I/O switch
cover not shown
here.