H11-EN Calibration P
AGE
22/31
5
Verification of the system
If one or two traffic lights are yellow or red, the operator has to perform a verification of the
system described below.
1. Verify the connection of the tubing to the module (red and blue connectors).
2. Verify the mesh of the pneumotachograph. It should be clean, free from dust and grease.
The screen of the mesh should be flat, without distortion. If necessary, clean it carefully
or replace it.
Remove the pneumotachograph from the handle.
Take the pneumotachograph from the lower part and turn counter clock wise the
upper part in order to disassemble the pneumotachograph.
Remove carefully the mesh without putting a finger on the screen.
The pneumotachograph mesh should be manipulated carefully.
Any damage on the mesh could affect the flow/volume measurement.
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