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Linearity Verification
The
UBREATH® PRO
Spirometer should never be outside accuracy limits unless
damaged or in a fault condition. In this event, please see troubleshooting. In
normal use, calibration traceability certification is recommended as a part of the
routine annual service.
Press "Linearity Verification" screen using the keypad to bring you into the
Linearity check verification screen in the system setting model.
1.
Select Precision Syringe from the top of screen and tap the volume of the
calibrated syringe (1L, 2L, 3L) you are using. Using a 3L calibrated syringe
as default setting.
2.
Pump air through the flowhead to bring it to ambient temperature. If the
flowhead has very recently been used for testing or has come from a cold
environment, its temperature should be equilibrated with ambient by
pimping air.
3.
Press "Start" at the bottom of screen to start the Linearity verification.
Attention:
Every spirometer has been calibrated and verified by Pulmonary
Waveform Generator in factory inspection. The spirometer has been saved
the default data. Once you want to start a new verification test, there is a
