15-11
3. Fill the gas bottle with a standard gas of certain CO2 content (3%, 4%, 5%, 6% and 7%),
and input the gas to the monitor.
4. Open the CO2 USER MAINTAIN menu, and set the CO2 field to a value, which is the same
with the CO2 content of the gas bottle.
5. When the CO2 USER MAINTAIN menu displays the currently measured CO2 content, wait
until a stable reading is indicated, and then select the CONFIRM CAL option to start
calibrating the CO2 module.
6. If the calibration succeeds, “CALIBRATE SUCCESS!” will be displayed in the CO2 USER
MAINTAIN menu. If fails, “CAL FAIL, TRY AGAIN!” will be displayed, and
re-calibration is required.
7. Select the EXIT option to exit the CO2 USER MAINTAIN menu.
15.2.5 Maintenance and Cleaning
The sampling line of the sidestream CO2 module is disposable and cannot be disinfected for
reuse.
In case of an exception in the sampling system of the CO2 module, check for entanglement
of the sampling line. If the sampling line is not entangled, remove it from the water trap. In
this situation, if the screen displays a prompt information indicating the CO2 sampling line
is abnormal, the water trap must have been blocked, and you must replace it with a new one.
If no prompt information is given, the sampling line must have been blocked, and you
should replace with a new sampling line.
Routine calibration of the sidestream CO2 module is not required. But the calibration must
be performed every year, or when great inaccuracy of measurement is found.
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