VIASYS Vmax Encore, Technical Reference Manual

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Chapter 2 System Description
2–20
L2707
Technical Reference Manual
Vmax Encore
turn to green when the mean flow rate of a stroke falls within the adjacent range.
If you complete 15 strokes, or the three-minute clock reaches zero, before you turn on the
required number of green segments, the following message will be displayed:
If the required number of bar graph segments is turned to green before you complete the 15
strokes, or before the three-minute timer reaches zero, the
Calibration Bar Graph screen is
replaced by the Calibration Verification window. The following message will then be dis-
played:
This message is displayed either automatically or manually, as designated in the Flow Vol-
ume Setup Calibration dialog box. Refer to the Vmax Reference Manual for a description
of this dialog box. You can now proceed to the next step.
6. In the Verification window, perform five full inspiratory and full expiratory strokes. Perform
these strokes at the ATS (American Thoracic Society) recommended flow rates.
Four of the five strokes are displayed and should appear as follows:
•
One stroke (inspiratory and expiratory) should reach the lowest dotted line (0.5 LPS).
•
One stroke (inspiratory and expiratory) should reach the highest dotted line (3.0
LPS).
•
One stroke should be halfway between the dotted lines (1.5 LPS).
•
One stroke (the fourth stroke) should represent a peak-flow rate near 12 LPS (8 LPS
minimum). This stroke should be created without “banging” the piston at either end of
the stroke.
Minimum Calibration
Requirements have not
been met.
F1 to repeat calibration.
This message will be given if:
•
There are less than three
green segments for the
inspiratory strokes (in any
combination).
•
There are less than three
green segments for the expi-
ratory strokes, and the sec-
ond and third segments are
not green.
Select F1 to repeat the calibration;
select Esc to terminate the
calibration and return to the Mass
Flow Sensor Calibration screen.
Minimum Calibration
Requirements have been
met.
F1 to repeat the calibration.
Select F1 to repeat the calibration;
select F2 to accept the calibration.