Welch Allyn Acuity and Mobile Acuity LT Central Monitoring Systems - User Manual - Manual (Page 183)

Directions for use Chapter 11 Specifications 179
Acuity System alarm and alert indications
Table 25. General Acuity System alarm and alert indications
Feature Specification
Numeric update time after Acuity
System receives alarm indication from
a patient’s monitor Within 1 s
Acuity Central Station tone volume Installation choice (hourly settings)
Audible alarm or alert tone delay time
to patient’s monitor 10 s (configurable up to four minutes, 15 seconds)
Audible alarm or alert tone
suspension time and activation 90 s, activated individually for each patient
Note, frequency range and pause
length for different types of tones Monitor equipment alerts: 1 A
4
@ 440.0 Hz, pause 2.45 s
Low-level alarms: 3 E
5
@ 660.0 Hz (1 s apart), pause 1.25 s
Medium-level alarms: 1 A
5
@ 880.0 Hz coupled with 1 C#
5
@ 554.0 Hz,
pause 0.5 s
High-level alarms: 3 A
5
@ 880.0 Hz, pause 5/6 s
Lethal alarms: 4 A
5
@880.0 Hz with harmonics, pause 0.8 s
Latched alarms Visual latching: When feature enabled, the most recent, highest-priority
arrhythmia alarm latches in the Waveform Window, even after alarm condition
ceases. Can be configured to apply to lethal/high-level or lethal/high-level/
medium-level arrhythmia alarms.
Audible latching: Lethal arrhythmia events can be configured to also latch
audibly. Audio tone latching default is off.
Table 26. Alarm and alert indications at the Acuity Central Station
Alarms
(red) Monitor equipment alerts
(yellow) System-wide
equipment
alerts
(yellow) Patient
information
alerts
(yellow)
Duration Indications remain until
condition is cleared or
alarm is turned off.
If latched alarm
capability is enabled,
lethal and high-level
arrhythmia alarms (and
medium-level arrhythmia
alarms if so configured)
persist in Waveform
Windows until cleared
at Central.
Indications remain until the
condition is cleared or the
alert is acknowledged
(disabled) at the patient
monitor (some alerts do not
allow acknowledgement).
Certain wireless alerts can
be RESET at the Acuity
Central Station.
Indications remain until condition
is cleared except Disk Failure
equipment alert is displayed for
two minutes, four times an hour.