Fluke Biomedical VT Mobile - Manual (Page 79)

Appendices
VT for Windows
A
A-13
edg62s.bmp
Figure A-16. Trend Test Panel
Conducting a Leak Test
Overview
The Leak test is for measuring the leak rate of a sealed vessel or test lung over a period of
time.
Starting a Leak Test
Start the Leak test by selecting the Leak Test tab (accessed by selecting File Æ View File
Controls). Then select Start Leak Test. (You can also start a Leak test by selecting Leak
Test from a pressure Plot menu on the Monitor Plots or Single Plot screen.) The dialog
box shown in Figure A-17 now appears, giving you the chance to choose the pressure
channel on which you want to run the test. In addition, you can change the displayed
pressure units. If you choose to enter a compliance value for the system under test, the
software calculates the volume lost during the test. Enter the test time to set the length of
time that the Leak test runs. The Leak test automatically stops at the end of that amount
of time. Click the OK button to begin the Leak test.
Running a Leak Test
The Leak test plots the chosen pressure channel (airway, low, or high pressure) over the
chosen length of time. The Leak test also displays several values calculated during the
test. Refer to Figure A-18.
• Current Pressure
This is the pressure currently measured.
• Initial Pressure