Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n 111
Alarms
Activating or deactivating alarm validation
When the alarm validation function is activated (see
page 445), an alarm condition must exist for a
certain time before acoustic and optical alarm
signals are triggered. This feature reduces false
alarms.
When the alarm validation feature is activated, the
time between the detection and annunciation of a
parameter falling outside the set alarm limits equals
the time of detection plus the assigned alarm
validation delay. For HR, adding the delay time may
exceed the maximum of 10 seconds allowed per
AAMI/ANSI/IEC 60601-2-27.
The following table lists which parameters have an
alarm validation time. Parameters that do not
appear in the table have no validation times and
acoustic and optical alarm signals are triggered
almost immediately.
Parameter Upper alarm limit Lower alarm limit
ECG/Heart rate (HR) 6 s 6 s
Pulse rate (PLS) 6 s 10 s
ST segment analysis (ST) 15 s to 60 s
(selectable)
1)
60 s
Respiratory rate (RRi) 14 s 14 s
Respiratory rate (RRc) 8 s 10 s
Pulse oximetry (SpO2)
2)
6s 10s
Invasive blood pressure (IBP) 10 s 4 s
Total hemoglobin (SpHb and SpHbv) 6 s 10 s
Carboxyhemoglobin saturation (SpCO) 6 s 10 s
Pleth variability index (PVI) 6 s 10 s
Methemoglobin saturation (SpMet) 6 s 10 s
NOTE
1)
Select the validation period for the ST limit alarm in the ST dialog (see "Configuring ST alarm settings"
on page 137).
2)
For Nellcor OxiMax SpO2: the SatSeconds alarm time overrides the alarm validation setting (see
"SatSeconds alarm" on page 279).
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