Quality Messages and Quality Grades
78
EasyOne Pro™ / EasyOne Pro™ LAB
CO-Calib
CO calibration could
not be performed: no
gas connected to the
system or Instrument
failure
CO calibration could not be
performed: Instrument failure
and/or no gas connected to the
system
Make sure the gas supply is
connected and open
Delay Error
Test cannot be
evaluated; gas
signals do not pass
QC check, automatic
delay correction
failed
Automatic time delay correction
failed
Repeat test correctly
End-Insp-Exp
Test cannot be
evaluated; no tidal
breathing detected
prior to DLCO
maneuver
No tidal breathing has been
detected before the test
Repeat test correctly
CO-Insp Drift
Maneuver not
acceptable; no sta-
ble CO signal during
breath-hold
During breath-hold, CO signal
drifts up or down
Check
spirette
™
und
barriette
™
position, check connections,
check DLCO valve unit
Message
Criterion
Recommended action