2-8
Symbols
Ventilator is powered by AC power and the battery is installed.
Ventilator is powered by AC power and the battery is not installed.
Ventilator is powered by the battery. This symbol shows the approximate
battery time remaining in hours and minutes, and it shows the capacity
graphically.
Help button. Touch to display onscreen help information.
Vertical autoscale button. Autoscales the Y axis of the graphs to fit the
data currently displayed.
Pause button. Freezes waveforms in the Waveform window.
Pause in progress
Resume button. Resumes all waveform graphs from a paused state.
Time base adjust button. Rescales the X axis of the graph display data at
3, 6, 12, and 24 second increments.
V
E
Estimated minute ventilation
V
T
Estimated exhaled tidal volume
T
I
/T
TOT
Duty cycle. Inspiratory time divided by total cycle time.
Table 2-2: Symbols used on graphical user interface (continued)
Symbol Description
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