H11-EN Calibration P
AGE
26/31
5
Analysis of the volume check results
Traffic lights signification
After the check process, two traffic lights are displayed in order to indicate the accuracy of
the volume measurement, one for inhaled volume, one for exhaled volume, relative to the
nominal volume of the syringe.
Accuracy better (less) than 3.5%. The linearity of the volume measurement is
good and meets ATS-ERS criteria. The system can be used.
Accuracy greater than 3.5%. The linearity of the volume measurement is not
good and does not meet ATS-ERS criteria. A verification of the system is
required.
Verification of the system
If one or two traffic lights are 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.
3. Verify the pneumotachograph Is properly assembled and fitted securely to the handle.
4. Verify the correct syringe volume (indicated on a label on the syringe) is the same
volume entered into the software.
5. Perform a new calibration.
After the verification of the system
Perform again a check of the pneumotachograph and check the results.
Accuracy better (less) than 3.5%. The linearity of the volume measurement is
now good and meets ATS-ERS criteria. The system can be used.
Accuracy greater than 3.5%. The linearity of the volume measurement is not
good and does not meet ATS-ERS criteria. A verification of the system linearity
by a field service technician is required. Please contact your Medisoft
representative.
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