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DT_0006 Issue 17

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Carefully re-assemble the silicone one-way valve with the hard plastic housing,

taking care not to damage the silicone one-way valve.

Note: It is important that the one-way valve is tted to the cone in the correct

orientation for the different MIP and MEP owheads. Refer to the images below

for the correct orientations. The owhead version is marked on the end cap.

Ensure the one-way valve is fully seated and centered into the groove on the

cone.

Figure 5: Orientation of one-way valve

Screw the MIP/MEP end cap to the cone. Ensure it is fully screwed home and

handtightened.Attachthewhiteendoftheowheadconnectiontubetothe

pressuretappingontheMIP/MEPowhead.Theclearendoftheowhead

connection tube is connected to the push in connector adjacent to the

spirometry connector on the Compact base.

TochecktheMIP/MEPowheadhasbeencorrectlyre-assembledattachaBVF

to the MIP/MEP Flowhead and test as follows:

1. MEPFlowhead:fullyinspirethoughtheowhead.Theone-wayvalveshould

open, and no resistance should be felt. Then attempt to expire. The one-way

valveshouldclose,andasignicantresistanceshouldbefelt.Theonlyair

escapingshouldbethroughtheMIP/MEPPressureVentontheowhead.

2. MIPFlowhead:fullyexpirethroughtheowhead.Theone-wayvalveshould

open, and no resistance should be felt. Then attempt to inspire. The one-

wayvalveshouldclose,andasignicantresistanceshouldbefelt.Theonly

airenteringshouldbethroughtheMIP/MEPPressureVentontheowhead.

Vitalograph Compact User Manual

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