Overview of Alarms
Puritan Bennett 540™ Ventilator User’s Manual
3-9
CHECK/CHANGE EXH
VALVE1*
*IF PERSISTS
REPLACE VENT
Inspired tidal volume during
exhalation < 40% of Inspired
Tidal volume and inspired tidal
volume inspired tidal volume >
20mL
HP
Yes
No
CHK VOL/INSP TIME
SETTINGS*
*IF PERSISTS
REPLACE VENT
Measurement and calculation of
tidal volume do not match Vt set
during six consecutive breaths in
VOL inspired and V SIMV modes.
Alarm activation occurs:
•
After six consecutive
breaths—once the ventilator
has reached its performance
limits.
HP Yes
No
DEVICE FAULT1
REPLACE VENT
Faulty internal pressure sensor
signal.
Alarm activation occurs:
•
After 15 seconds.
HP Yes
No
DEVICE FAULT2
REPLACE VENT
Faulty proximal pressure sensor
signal.
Alarm activation occurs:
•
After 15 seconds.
MP
Yes
Yes
DEVICE FAULT3
REPLACE VENT
Failure in the 24 V
power supply.
HP
Yes
No
DEVICE FAULT4
REPLACE VENT
Ventilator cooling fan operating
speed not suited to the internal
ambient temperature of the
device.
MP
Yes
Yes
DEVICE FAULT5
REPLACE VENT
Detection of a fault in the
electrical power supply system.
Consequence: the internal
battery capacity is not displayed
beside the battery symbol.
MP
Yes
Yes
DEVICE FAULT6
REPLACE VENT
Turbine speed too high with
high temperature.
Consequence: ventilation stops
immediately and O2 supply
stops.
HP No
No
DEVICE FAULT7
REPLACE VENT
Detection of a fault in sensor
voltage measurement.
HP
Yes
No
DEVICE FAULT8
REPLACE VENT
Inspiratory flow is constant (+/- 1
lpm) with normal turbine
temperature and speed
conditions. Contact your service
representative for assistance.
HP
Yes
No
Table 3-1.
Overview of Alarms (Continued)
Alarm Message
Cause/Ventilator Response
Priority
Audio
Paused
Avail.
Alarm
Paused
Avail.
Содержание Puritan Bennett 540
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