09100 Issue 1
21Page of 36
ENG
ALPHA Touch - Instructions for Use
5.2. Inspection of the Vitalograph ALPHA Touch
Visual inspection is recommended on a routine basis; Remove owhead cone
and owhead end cap from the owhead (gure 5). Examine ow conditioning
mesh lters for damage or contamination. If they are damaged or blocked,
discard and replace with new parts. Examine the O-rings on the Fleisch element
and replace if damaged. Re-assemble the cone and end cap.
It is recommended that an accuracy check is carried out following cleaning and
re-assembly as recommended in the ATS/ERS 2019 guidelines
2
.
Figure 5: Flowhead Assembly
2 Derived from terminology and guidance taken from ATS/ERS Standardisation of Spirometry 2019 Update Am J Respir Crit
Care Med 2019 Vol 200, Iss 8 pp e70-e88
1 Flowhead Complete
2 ‘O’ Rings
3 Flowhead End Cap
4 Flow Conditioning Meshes
5 Flowhead Cone
6 Fleisch Element
7 Flowhead Body
8 Port Pressure Tappings
Lubrication: Silicone Grease
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