Alarm Types; Alarm Silence/Alarm Reset; Machine Alarms; Safety Valve Open/Ventilator Inoperative/Not Ventilating - CareFusion AVEA Operating Instructions Manual

172
With the control selected, rotate the large data dial below the touch screen until the control reaches the setting you
require. To accept the new setting, either press the touch screen over the control again or press the ACCEPT button.
Note:
Red indicators appearing on the primary controls display the relative alarm settings of any associated alarm.
Alarm Silence
You can disable the audible alarm for 2 minutes ± 1 second by pressing the Alarm Silence key. Pressing the Alarm
Silence key again before the 2-minute period is up will cancel the "silence". This feature is functional for all alarms, with
the exception of the "Vent Inop" alarm, which cannot be silenced.
Note:
The activation of the auditory alarm silence button will not prevent the subsequent activation of auditory alarm signals
for certain alarm conditions.
Alarm Reset
The Alarm Reset button deactivates visual indicators for alarms that are no longer active.

Alarm Types

Machine Alarms

Safety Valve Open
This is a high priority audible/visual alarm. SAFETY VALVE OPEN is displayed, and a high priority tone sounds
whenever the Safety Valve is open.
Ventilator Inoperative
This is a high priority audible/visual alarm. VENT INOP is displayed if the ventilator fails due to a non-recoverable
condition, such as loss of power or supply gases. A high priority tone sounds. The safety valve opens, indicated by a
SAFETY VALVE OPEN alarm message, and the patient is allowed to breathe room air.
Note:
PEEP is not maintained during a VENT INOP or a SAFETY VALVE OPEN alarm condition. When the ventilator safety
valve is open the ventilator graphics will indicate a safety state by displaying the color purple.
Not Ventilating
This is a high priority audible/visual alarm. NOT VENTILATING is displayed if the internal blended system pressure
drops below 1 psi for greater than about 12 seconds. The time delay on this alarm allows a transient drop in pressure
due to high patient demand. This alarm is triggered when there is a component failure that is preventing ventilation from
occurring. The Safety Valve is normally held physically closed by this system pressure, and therefore the safety valve
should be open if there is no system pressure at this location to keep the Safety Valve closed. This alarm is
differentiated from "Safety Valve Open", as the software is not driving the Safety Valve to an open state, and the
Chapter 7: Alarms and Indicators Operator's manual
L2786 Rev. M