Pocket Guide Oxylog 3000 plus 29
Operation
Setting HME correction
When using an HME, the measured flow may deviate
from the actual expiratory flow, as temperature and hu-
midity of the gas are reduced. The flow and volume
measurements can be corrected for use with an HME.
When using HME, select, set and confirm HME - On in
the Settings window with the rotary knob.
CO2 measurement (optional)
The CO2 measurement only works if the CO2 option has
been installed and if the CO
2 sensor is present.
Cuvette type setting
To set the cuvette type (reusable or disposable):
1 Press the Settings key.
2 Select and activate the line Cuvette type.
3 Set the cuvette type and confirm.
Checking the CO2 sensor during
ventilation
The following checks are necessary for the CO2 sensor
during ventilation:
Zero calibration during ventilation
The zero calibration is performed with a clean CO2 sen-
sor that has been removed from the cuvette.
To perform zero calibration:
1 Connect the CO
2 sensor and wait at least 3 minutes
for the CO
2 sensor to complete its warm-up phase.
2 Remove the CO
2 sensor (A) from the cuvette (B).
3 Press the Settings key.
4 Select and activate the line CO2 Zero Calib - Run.
The screen displays the text Remove the sensor
from cuvette then press rotary knob.
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NOTE
The cuvette windows of the reusable cuvette and dis-
posable cuvette have different optical properties.
Therefore, the correct cuvette type must be selected in
the Setting menu. Otherwise the zero point is shifted
by up to ±8 mmHg of CO
2.
Check Interval
CO
2 zero calibrati-
on
Required before measurement
and when changing the CO
2 sen-
sor to another unit.
Required if the CO
2 sensor shows
an offset after a warm-up phase.
CO
2 filter check Required in intervals of one
month.
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