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Alarms and Troubleshooting
User’s Manual
3-13
OCCLUSION
CHECK CIRCUIT*
*IF PERSISTS
RESTART/SRVC
Occurs in VALVE configuration when
the tidal volume is measured below
20ml during three consecutive
breaths for PSV, CPAP, PA/C and P
SIMV modes.
Alarm activation occurs after three
consecutive breaths if the tidal
volume is less than 20 mL.
HP Yes
No
OCCLUSION
CHECK CIRCUIT
Occurs in LEAK configuration when
the LEAK level is not sufficient to
flush the CO
2
from patient
exhalation. The built-in LEAK in the
mask may be obstructed.
The built-in leak for the mask is not
sufficient for the settings.
HP
Yes
No
PATIENT
DISCONNECTION*
*IF PERSISTS
RESTART/SRVC
Alarm activation occurs if conditions
remain for the maximum time
between:
•
disconnection time and 60/R-
Rate in P A/C and V A/C mode
•
disconnection time and (Apnea
time +2 sec) in CPAP and PSV
mode
•
disconnection time and (60/R-
Rate + Insp time) in P SIMV and
V SIMV mode.
HP Yes
No
If the flow is greater than 130 lpm
during the inspiratory phase.
In V A/C and V SIMV modes, if
patient pressure is lower than Min
PIP.
In PSV, CPAP, P A/C modes
and P SIMV if patient pressure is
lower than (P S
PEEP) - 20% or (P C PEEP) -
20%.
POWER FAULT
RESTART/SRVC
Detection of a fault in the electrical
power supply system.
MP
Yes
Yes
POWER SUPPLY
LOSS
(no message)
1. Electrical power supply to the
machine is interrupted with the I/O
switch when ventilation is in
progress
or
2. Battery fully discharged when it
was the only source of power to the
ventilator.
Consequence: ventilation stops
immediately. Ventilation restarts
immediately when the switch is
pressed in case 1 (above) or after
restoration of the AC or DC supply
in case 2 (above).
VHP
No
Yes
Table 3-1.
Overview of Alarms (Continued)
Alarm Message
Cause/Ventilator Response
Priority
Audio
Paused
Avail.
Alarm
Paused
Avail.
Summary of Contents for Puritan Bennett 560
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