Fluke Biomedical VT305 - Manual (Page 28)

VT305
Users Manual
14
The available filter selections are as follows:
• None (Display of the latest measured value without
thresholds)
• Low (Mean value over 240 ms)
• Medium (Mean value over 480 ms)
• High (Mean value over 960 ms)
The factory default for the filter is high.
You can change the filter selection in the browser-based
Product configuration tool. To learn more, see the Product
Configuration section.
How to Save Data
Push and hold O for 5 seconds to store data on the micro-
SD card. The screen in Figure 10 shows in the display
while the Product saves the data. See the How to Read
Out Measurement Data section.
Data saved to
DATAxx.CSV
gyo022.eps
Figure 10. Saving Data Screen
Zero-Point Calibration
Push and hold X for 5 seconds to start the zero calibration
of the pressure and flow sensors. While the Product does
the calibration procedure, the screen in Figure 11 shows in
the display.
Zero- Calibration
Running
gyo023.eps
Figure 11. Zero Calibration Screen
It is important to do a zero calibration periodically to
remove off-sets in the flow measurement.
 Caution
To make accurate measurements, do not apply
pressure to the Product when you do a zero
calibration. This caution is not shown in the
display when you use the X symbol.
It is very important to do the zero calibration while the
airway pressure transducer stabilizes and before a
measurement is made.