TSI Instruments Certifier Plus - Page 58

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Symptom
Possible Cause
Corrective Action
I:E ratio or I time readings do
not appear correct.
It is possible the inspiratory
pause function is turned on
inside the ventilator.
Display the I time, T
I+P
, and
I:E
IP
ratio when the inspiratory
pause is activated on the
ventilator. Or turn off the
inspiratory pause feature on
the ventilator.
Cannot zero low pressure or
high pressure sensors.
Sensor is connected to a
pressure source.
Disconnect the pressure tubing
from the flow module and then
re-zero the pressure sensors.
Cannot zero barometric
pressure sensor.
Barometric pressure
sensor does not require a
zero calibration.
Resume normal system
operation.
Oxygen sensor calibration fails.
21% oxygen and/or 100%
oxygen not supplied for
calibration. Oxygen sensor is
expired. Non-steady flow or
tidal flows used.
Verify that calibration gases are
21% and 100% O
2
and repeat
calibration. Replace oxygen
sensor. Use constant flow rates
to supply calibration gas.
Unable to export
configurations or log files
to removable USB drive.
USB drive is not recognized by
the CertifierFlow Analyzer.
Reformat the USB drive to
FAT32 format. Reformat
even if the drive shows
FAT32 already.
Battery will not charge with the
instrument plugged in to power.
Battery has discharged beyond
minimum charge level.
Unplug power adapter, plug
back in, and charge for
10 minutes. Repeat until
normal charging behavior
is observed.