Quick Reference Guide Primus
Infinity Empowered
SW 4.5n
23
Alarms
The series of alarm tones can be suppressed for
2 minutes:
z
Press the
key (C), the yellow LED lights up.
The symbol
appears in the system information field
(D) next to the date with an indication of the silence time
remaining (minutes:seconds).
To enable the alarm tone:
z
Press the
key (C), the yellow LED turns off.
Alarm behaviour when changing
ventilation modes
The Primus
Infinity Empowered
has an automatic sup-
pression of active
MV
low and apnea alarms implement-
ed, when changing ventilation modes.
This suppression applies when the user changes from a
ventilation mode with a low mandatory ventilation sup-
port, such as
Man.Spont
, to a ventilation mode with a
higher mandatory ventilation, such as
Volume Mode
.
After this timeout the alarms will only be generated
again if the preconditions are valid.
If the
MV
low alarm is active during such a change, the
alarm is suppressed for 45 seconds (no alarm display
and no audible tone). The apnea alarms can be sup-
pressed for a certain time, depending on the ventilation
settings in the new ventilation mode. If the settings for
freq./Freq
MIN
are <6 1/min the apnea alarms will be
suppressed for 30 seconds, otherwise the timeout is
15 seconds.
Displaying and setting alarm limits
Alarms can be displayed and set from all three basic
screens (standard, data, and trend screens) during op-
eration.
There are standard alarm limits configured for the ven-
tilation modes which may be used as is (Configuring the
dafault settings) or adjusted individually for the patient
concerned.
For this purpose, the alarm limits menu can be selected
in
Standby
via the soft key
alarm limits
.
To call up alarm limits during operation:
z
Press the soft key
alarm limits
(A).
Display (example):
The current measured values and their alarm limits are
grouped on the right (B).
The curves with the alarm limits represented by dashed
lines (C) are displayed on the left.
The upper alarm limit (40 hPa (cmH
2
O)) and the lower
alarm limit (8 hPa (cmH
2
O)) are assigned to the mea-
sured value
P
AW
(25 hPa (cmH
2
O)).
A disabled alarm limit (example
etCO
2
) is indicated by
two dashes ("
– –
").
To set an alarm limit:
z
Place the cursor on the alarm limit by turning the ro-
tary knob and push to confirm.
The alarm limit is highlighted in yellow.
z
Set the new value by turning the rotary knob and
push to confirm.
365
01:46
100 %
23 May 2007
16:53
D
C
338
A
B
C
etCO
2
50
P
AW
25
40
38 --
8
Volume