Covidien Puritan Bennett 540, User Manual, Page: 45 / 141

Overview of Alarms
Puritan Bennett 540™ Ventilator User’s Manual
3-7
3.7 Overview of Alarms
Note:
The message: “*IF PERSISTS REPLACE VENT” will occur only if the alarm condition continues for longer than 30
seconds.
Table 3-1. Overview of Alarms
Alarm Message Cause/Ventilator Response Priority
Audio
Paused
Avail.
Alarm
Paused
Avail.
AC POWER
DISCONNECTION
Cut-off of the AC (mains) power
supply.
Alarm activation occurs:
•
After 5 seconds if ventilation
is stopped
•
At the start of a ventilation
cycle when ventilation is in
progress.
Consequence: switch over to
external DC power supply if
present, otherwise to the
internal battery.
MP Yes Yes
APNEA
No inspiratory trigger detected by
the ventilator after the apnea time
set in PSV/CPAP, P SIMV and V SIMV
modes.
Automatically clears itself after two
successive patient breaths.
MP Yes
Yes – except
for CPAP
BATT FAULT1
CALL SERVICE
Ventilator has detected an
internal battery fault.
Consequence: the internal
battery is disabled from use.
MP Yes No
BATT FAULT2
CALL SERVICE
No internal battery detected.
MP Yes No
BATT FAULT3
CALL SERVICE
The internal battery is not
recognized as a
Puritan Bennett battery.
MP Yes No
BATT FAULT4
REPLACE VENT
Internal battery charging failure.
Consequence: charging of the
internal battery impossible.
MP Yes Yes
BATT TEMP FAULT*
*IF PERSISTS
REPLACE VENT
Battery temperature out of
tolerance.
Consequence: battery charging
stops.
MP Yes Yes
CAL FAULT
SEE USER MNL
Failure of one calibration point
of the internal exhaled flow
sensor.
Consequence: failed calibration
point is replaced by the default
point.
MP Yes Yes