CO
2
Monitoring
17-20
Calibration Procedure
1. Verify the module enters the Full Accuracy Mode.
2. Connect a gas bottle with the CO
2
sensor connector on the monitor as shown
below.
Figure 17-11 Connections for Calibration
3. Fill the gas bottle with a standard gas of certain CO
2
content (4% to 6%), and
input the gas to the monitor.
4. Open the CO2 USER MAINTAIN menu, and set the CO
2
field to a value,
which is the same with the CO
2
content of the gas bottle.
5. When the CO2 USER MAINTAIN menu displays the currently measured CO
2
content, wait until a stable reading is indicated, and then select the CONFIRM
CAL option to start calibrating the CO
2
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.
Monitor
Gas bottle
T-shape connector opening
to the atmosphere
Decompression
valve
Tube
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