Vyaire MicroLab - Calibration Check (Verification)

Calibration Check (Verication)
The spirometer is calibrated to read in litres at body temperature,
Barometric Pressure Saturated with water vapour (BTPS).
The calibration should remain stable indenitely, unless the
transducer is physically damaged, and the unit should not require
re-calibration. However, to ensure the correct functioning of the
unit it is recommended that a calibration check (verication) is
performed after the transducer has been removed for cleaning.
Connect a 3L syringe to the transducer
with the minimum of adapters and empty
it by pushing the handle fully in.
Note: It is recommended that the
transducer is disinfected prior to a
calibration check (verication) or a
MicroGard
®
lter is used during the
procedure.
Select ‘Calibration Check’ from the main
menu and then select ‘check Calibration’.
Fill the syringe by pulling the handle at a
constant rate until the end stop is reached
and then immediately empty the syringe
completely. Try to maintain a ow rate
that keeps the trace within the grey bands
on the display.
Press ‘Reject’ to retry the calibration check
at the required ow rate.
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