Dräger Perseus A500 Instructions For Use Manual page 176

Troubleshooting
Alarm Alarm
priority
! 255 Internal device temperature
high
!!! 0 Loss of data
! 0 MEDIBUS COM 1 failure
! 0 MEDIBUS COM 2 failure
!! 30 Minute volume high
176
Cause
A ventilation slot at the rear of
the device is blocked.
Ambient temperature is too
high.
A fan is faulty.
Excessive ventilation set-
tings are applied (e.g., high
respiratory rate, high inspira-
tory pressure, short slopes).
An internal memory failure
has occurred. System data
and system settings are lost.
Communication via the corre-
sponding COM port is inter-
rupted.
The configured baud rate is
not sufficient for the amount
of data to be transferred.
Communication via the corre-
sponding COM port is inter-
rupted.
The configured baud rate is
not sufficient for the amount
of data to be transferred.
Upper alarm limit for the min-
ute volume has been
exceeded.
Flow measurement is inaccu-
rate.
Instructions for use Perseus A500 SW 1.1n
Remedy
Check the ventilation slots.
Ensure air flow at the rear of
the device.
Check ambient conditions.
Call DrägerService.
Check ventilation settings.
Check current settings and
default settings.
Call DrägerService.
Check the cable and the con-
nection.
Use "ALARM RESET" to
acknowledge alarm.
Increase the baud rate.
Check the configuration of the
external device.
Check the cable and the con-
nection.
Use "ALARM RESET" to
acknowledge alarm.
Increase the baud rate.
Check the configuration of the
external device.
Check spontaneous breath-
ing.
Check ventilation settings
(e.g., VT, Pinsp, RR).
In Pressure Support, correct
the trigger threshold if neces-
sary.
Check alarm limit.
Replace the expiratory flow
sensor if necessary and per-
form the breathing system
test.