
7
Maintenance
6924-en_V1.3_09/20
95
1.
Start the testing routine
Breath resistance
in the software.
2.
Follow the instructions on the screen, with one exception: When the
software says to turn over the mask, confirm this point without actually
changing the position of the pressure measuring plate.
3.
Compare the result of the differential pressure measurement to the
value indicated on the plate and the calibration certificate.
The measurement result must be within the tolerance indicated on the
calibration certificate (“Allowable range”).
If the result is not within the tolerance, there is leakage or some other fault.
Contact Palas or your sales partner in this case.