Fluke Biomedical VT Plus HF - Manual (Page 66)

VT Plus HF
Operators Manual
3-16
Volume Screen
The Volume screen displays the signal and statistics for the volume signal.
fec053.bmp
The volume signal is the integral of the flow signal measured in either the high or low
flow ports. The flow port that is integrated is selected by selecting the high- or low-flow
range from within the flow screen.
Flow Zero
Press the FLOW ZERO soft key to zero the flow reading.
Units Press the UNITS soft key to change the units of measure for the volume
screen. Possible units of measure for this screen include:
l Liters
ml Milliliters
CF Cubic Feet
Re-scale Press the RESCALE soft key to change the scale on the plot of data to a
more appropriate window of values.
Note
RESCALE uses the current min/max values to
determine plot limits.
Clear Press the CLEAR soft key to reset the statistics and re-start the plot.
The user can select the breath parameters displayed on this screen by following the
instructions under Selecting Parameters.
Note
The volume signal is integrated from either the high- or low-flow signals.
To select which flow signal is used to calculate volume:
1. Press the
FLOW/0 key.
2. Press the RANGE soft key until the screen corresponding to the desired flow signal
(high or low) displays.