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Control Panel
Puritan Bennett 540™ Ventilator User’s Manual
2-5
2.7 Control Panel
Figure 2-3. Control Panel
1 Display screen:
Display of modes, ventilation settings, patient
data and waveforms, configuration of the
ventilator
and alarm management.
6 DOWN/FREEZE key:
•
Moves the cursor down and decreases parameter values.
•
During ventilation, freezes displayed waveform in the
Waveform menu.
2 Alarm indicators:
Red indicator:
•
High priority (HP) alarm activated.
Yellow indicator:
•
Medium priority (MP) alarm
activated
7 MENU key:
Changes the displayed menu. From the Ventilation menu
screen, press this key to display the Alarm menu screen.
3 ALARM CONTROL key:
•
Press once to silence an audible alarm for
60 seconds.
•
Press twice to halt visual and audible alarms.
If alarm is remedied, the alarm is cancelled
(other than the high pressure alarm).
8 VENTILATION ON/OFF button:
•
Press briefly and release to start ventilation.
•
Press for three (3) seconds to stop ventilation.
4 UP/UNFREEZE Key:
•
Moves the cursor up and increases
parameter values.
•
During ventilation reactivates waveform
tracing in the Waveform menu.
9 Ventilation status indicator:
•
Blue indicator illuminated: device is powered on and
ventilation is off (on standby).
•
Blue indicator off: ventilation is on.
5 ENTER key:
•
Access to a setting value and validation of
the modification of this setting.
•
Access to a sub-menu.
10 Electrical power source indicators:
•
AC POWER indicator lit: AC power source connected.
•
DC POWER indicator lit: DC power source connected.
•
INTERNAL BAT indicator lit continuously: Ventilator
powered by internal battery (no external power source
connected.)
•
INTERNAL BAT indicator flashing: battery charging.
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