Covidien Puritan Bennett 540, User Manual, Page: 24 / 141

Safety Information
1-12
Puritan Bennett 540™ Ventilator User’s Manual
Nurse Call connector.
This symbol appears on the back panel of the ventilator, adjacent to the nurse call connector;
see
Figure 1-4 , item 3, and Figure 4-18 on page 4-18.
Switch in “Off” position (IEC 60417-5008).
This symbol appears on the I/O (power on/off ) switch on the back panel of the ventilator
to indicate the switch’s “Off” position. See
Figure 2-2 on page 2-4, item 2.
Switch in “On” position (IEC 60417-5007).
This symbol appears on the I/O (power on/off ) switch on the back panel of the ventilator
to indicate the switch’s “On” position. See
Figure 2-2 on page 2-4, item 2.
Software Lock Enabled.
This symbol appears on the upper-left of the ventilator’s LCD display when the keyboard Locking Key is
enabled.
Internal Battery.
This symbol appears on the top-center of ventilator’s LCD display to indicate that the ventilator is being
powered by its internal battery. See
Figure 2-4 on page 2-6, item 1 and refer to chapter 6, “Internal
Battery” , for more information.
Pressure rise times (inspiratory phase) parameter.
These symbols appear on the ventilation mode menu screens. For more information, refer to chapter 3,
“Operating Parameters” . In pressure ventilation modes, you can select one of four rise times with setting 1
representing the fastest rise time and setting 4 representing the slowest.
Flow shape (“flow distribution shape”, inspiratory phase) parameter.
These symbols appear on the ventilation mode menu screens; selectable for Vol A/C mode only. For more
information, refer to chapter
3, “Operating Parameters” . In volume ventilation modes you can select
between Square (SQ) or Descending (D) flow patterns.
Selected line (filled square).
When making menu choices, this graphic indicates the line on which the cursor is currently positioned.
Non-selected line (empty square).
When making menu choices, this graphic indicates a line on which the cursor is currently not positioned.
Locked parameter line.
When making menu choices, this graphic indicates a line that cannot be selected (the Locking Key is
enabled).
Active parameter line.
When making menu choices, this graphic indicates that the current parameter is selected and can be
changed. See chapter
5, “Operating Procedures” .
Inspiratory Effort Detected.
This symbol appears in the front panel display’s Status window when the patient triggers a breath.
Parameter adjustment bar.
This graphic shows the current setting for parameters such as display contrast and alarm volume in the
Preferences menu.
WEEE (Waste Electrical and Electronic Equipment).
This symbol means that this product must not be disposed of with household waste. Observe local
ordinances for proper disposal. Refer to
Table 1-2 , item 6.
Table 1-1. Ventilator Symbols (Continued)
Symbols Descriptions
O
I