5-32 624074/07
5 Ventilator settings
Table 5-3. Alarm limit settings and ranges
Parameter Definition Range
Apnea time The maximum time allowed from the
beginning of one inspiration to the
beginning of the next inspiration. If the
patient does not trigger a breath dur-
ing this time, an alarm is annunciated.
Apnea backup ventilation will begin, if
enabled.
The Apnea alarm is suppressed under
these conditions:
• When the ventilator is in the ambi-
ent state, standby, or any of these
modes is active: (S)CMV, P-CMV,
APVcmv, or ASV
®
.
• During flow sensor calibration or
the tightness test.
If apnea backup ventilation is not
enabled, apnea is detected, and the
alarm silence is active, the alarm
silence is terminated immediately.
10 to 60 s
ExpMinVol
(low and high)
Low and high expiratory minute vol-
ume. If either limit is reached, a high-
priority alarm is annunciated.
NOTE:
If you do set the ExpMinVol
alarm to Off, the pressure
alarms become critical, so pay
close attention to them and set
the low Pressure alarm to an
appropriately sensitive level.
Low: Off, 0.01
to 49 l/min
High: Off,
0.03 to
50 l/min
HLI (high) High HLI. Off, 0 to 40%
Leak High leakage. Leak is the percentage of
delivered inspiratory volume that is not
returned during exhalation on the
patient side of the flow sensor.
Off, 5 to 80%
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