VIASYS Vmax Encore, Technical Reference Manual

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Chapter 3 Maintenance and Troubleshooting
3–6
L2707
Technical Reference Manual
Vmax Encore
Figure 3-3 Isothermal Volume Control Verify screen
6. Enter the volume of the Lung Volume Standard (located on the serial number sticker) into
the Iso Cal Volume Box. This will become the default volume and will be displayed in future
calibrations.
7. Step on the foot switch to activate the Lung Volume Standard’s internal piston.
8. Select F1 to begin the VTG measurement procedure.
Note:
The test procedure ends automatically after approximately six seconds, and the last
four collected loops are displayed.
9. Release the foot switch.
The calculated V
TG
volume of the four displayed loops is shown in the data box at the top of
the screen. The average of the four loops is displayed under “Mean.” The mean value is
compared to the target value and expressed as a percent under “%Target.”
10. Verify that the %Target value is within the range of 97-103%. If the values are not within this
range, repeat the procedure.
To print a report of the test results, select F5.
Note:
The Lung Volume Standard Verification results are not permanently saved in the
patient file and cannot be printed on the final report.
Mean Volume
as a percent of
Target
Volume—this is
the most
important value
on the screen
Entered volume
of Lung Volume
Standard
Enter volume of
Lung Volume
Standard here.
Initiates the
verification
procedure
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