Philips V200 用户手册

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Options and Accessories
REF 1057983 A
Respironics V200 Ventilator Operator’s Manual
13-71
Chapter 13
The Trending screen (Figure 13-34) displays three trending waveforms as well 
as a summary of ventilator settings and patient data. You can change the 
waveforms and time scale at any time. 
Figure 13-34: Trending Screen
Summary of Trending Screen Information
Information type
Description
Parameter select buttons
Selects which parameter to display in the trending waveform.
Manual rescale buttons
Selects the upper and lower limits for the displayed parameter.
Cursor arrow buttons
Changes the position of the cursor. (You can also use the front 
panel control knob to adjust cursor position.)
-2 Hrs and +2 Hrs buttons
Shifts the waveform forward or backward by 2 hours without 
changing the time scale. If you press and hold the buttons, the 
time scale shifts every ½ second. If less than 2 hours of data 
exists, the waveform shifts by the time available. The button is 
grayed if the waveform cannot shift any further.
Zoom in/out button 
Zoom in sets the time scale to 2 hours, with time centered at the 
cursor position. The button is grayed if the current time scale is 2 
hours.
Zoom out button returns the time scale to its previous setting. 
Rescale button
Automatically adjusts the vertical axis for all three waveforms for 
optimal viewing based on the maximum and minimum values for 
the currently displayed data.
Table 13-10: Summary of Trending Screen Information
Parameter
select
button
Manual
rescale
button
Begin
trending
time
Cursor time and date
End Trending Time
View 1, View 2 buttons