A5/A3™ Operating Instructions 046-003777-00 5 - 9
Operations Ventilation Modes
To change ventilation mode to VCV, SIMV-VC, PCV, SIMV-PC (A5 only), or PS:
1. Select the tab of the desired ventilation mode. The “Set Mode” button (or “Preset Mode”
button in manual) will flash (see
FIGURE 5-6).
2. Select the “Set Mode” button (or “Preset Mode” button in manual) to confirm.
If the “Set Mode” button is not selected after several seconds, an audio reminder will sound
for several seconds and then the system will return to the previous ventilation mode.
3. Optionally, select each available ventilation parameter to edit the parameter setting.
4. Move the Auto/Manual Bag switch to the Auto position.
NOTE: When the Auto/Manual switch is in Auto position, all the buttons in
Manual tab (Alarms, Bypass, Monitor and End Case) are disabled;
Alarms are set to On; and Bypass is set to Off.
FIGURE 5-6 Ventilation Mode Tabs
5.6.4 Set Manual Ventilation Mode
Manual ventilation mode is used for manually ventilating a patient or to let a patient breathe
spontaneously. To use the manual mode, the user must first set the APL valve to the desired
pressure value and then use the Auto/Manual switch on the breathing module to enter and exit
Manual mode. Push the O
2
flush button to inflate the bag if necessary.
When the Auto/Manual switch is set to Manual, and the Alarms button in the Manual mode
tab is set to Off, the alarm limit indicators on the main screen to the right of the measured values
related to Pressure and Volume (such as PEAK and MV) will change to Off
(see FIGURE5-7).
The Alarms button setting (On/Off) in the Manual mode tab is saved and restored when
toggling from Manual to Auto and back to Manual mode. For example, if the Alarms button is
set to Off, this setting will be saved and restored to Off after switching to Auto and back to
Manual mode.
FIGURE 5-7 Alarm Limit Indicators
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