NDD easyone pro, Operator'S Manual, Page: 94 / 188

Quality Messages and Quality Grades
94 EasyOne Pro™ / EasyOne Pro™ LAB
FRC(MBW) Warning:
Side-Stream Flow out
of range! During the test, the gas extraction
was not within the limits of 7.5
and 13 ml/s. Contact service.
FRC(MBW) Warning:
CO2 sensor scaling
warning! Automatic scaling of the CO
2
sig-
nal failed.
Contact service.
FRC(MBW) Warning:
Tracer concentration
at test end too high! No breath with an N
2
concentra-
tion below 2% was measured.
Repeat test.
FRC(MBW) Warning:
Perform deeper
breaths (too small
tidal volume)! Tidal volume outside 4 to 30 mL/
kg body weight or outside 0.25 to
0.3 L if the body weight is not sta-
ted Ask patient to breathe regularly
and calmly
FRC(MBW) Error: No
start of washout
detected! Multi Breath Washout not found. Perform washout procedure cor-
rectly.
FRC(MBW) Error:
Error in Gas Signal
Delay Correction! An error occurred during the auto-
matic determination of the delay
between gas signals and flow (i.e.,
the delay is not within the desired
range). Check FRC barriette™ position.
Contact service.
FRC(MBW) Error: Not
enough breaths for
washout computa-
tion! The number of breaths required
for calculation of FRC was not
reached. FRC test was stopped prematurely.
Message Criterion Recommended action