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Resetting/Pausing Alarms
Puritan Bennett 540™ Ventilator User’s Manual
3-5
The audible portion of activated alarms is automatically reactivated:
•
After 60 seconds, if the cause(s) of the alarm(s) persist(s)
•
Whenever a new alarm is activated
3.5 Resetting/Pausing Alarms
Some alarms are not automatically cancelled when the condition causing the alarm ceases; these can
be paused manually even if the cause(s) of their activation remain(s).
To manually pause an alarm, proceed as follows:
Press the ALARM CONTROL key twice.
•
The alarm is paused: the audible portion, light indicator, and message are all halted (for the
alarms which can be paused manually).
•
The Alarm Paused symbol is displayed at the top right of the Ventilation,
Alarms, and Waveforms screens. See the sample screen, below.
When no other alarms are currently activated, the last alarm cancelled is displayed continuously in the
alarm message window in the Alarms menu, along with the date and time of its activation (as shown
above).
The High Pressure alarm must be manually reset. Refer to section 3.7, “Overview of Alarms,” on page 3-
7 .
To manually reset the High Pressure Alarm, proceed as follows:
Press the ALARM CONTROL key twice.
•
The visual alarms will be reset.
Note:
If a key is stuck or held down for 45 seconds a keypad alarm will occur.
WARNING
•
Alarm volume should be adjusted with respect to the ventilator’s operating environment and so that
the patient's caretakers can hear the alarms. The audible alarm vents located at the front of the device
should never be obstructed. The alarm can be paused with the Alarm Pause function by pressing the
ALARM CONTROL key twice once the alarm has been declared.
•
When an alarm condition is triggered, or there is evidence of a patient-ventilator fault or problem,
examine the patient first before examining the ventilator.