
15-9
15.2.4 CO
2
User Maintain Menu
Select CO2 USER MAINTAIN >> in USER MAINTAIN menu. The following menu appears.
Figure 15-5 CO
2
User Maintain Menu
The following information is displayed in the menu above.
CO2 The currently measured CO2 content.
Unit: %.
In the field at the right of the CO
2
value, you can select a standard gas containing a certain
amount of CO
2
for calibration.
Options: 3%, 4%, 5%, 6% and 7%.
BAROMETRIC The currently measured barometric pressure.
Unit: mmHg.
SENSOR TEMP The currently measured temperature around the infrared
sensor.
Unit: ℃.
CUR PUMP RATE The currently measured pumping rate.
Unit: ml/min.
SET PUMP RATE The sampling flow rate set by the user.
ZERO CAL This option allows you to zero the CO2 module, so as to
eliminate the adverse affect of the baseline drift in the
process of measurement. Perform zeroing prior to
concentration calibration.
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